mp2i-vms.fr
1504 lines
56 KiB
OCaml
1504 lines
56 KiB
OCaml
open Graphics ;;
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(* SOMMAIRE
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- misc functions : 20
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- main function : 68
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- type 2 printing: 122
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- DFS : 373
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- BFS : 630
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- Dijkstra :
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*)
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Random.self_init () ;;
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let pi = 3.14159265358979343 ;;
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let rec ln10 n = match n with
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| k when k < 0 -> failwith "Are you sure about that ?"
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| k when k < 10 -> 0
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| k -> 1 + ln10 (k/10) ;;
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let delta i j =
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if i = j then 1 else 0 ;;
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let draw_integer x0 y n0 r =
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(* 7-seg display *)
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let n = ref n0 in
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let size = ln10 n0 in
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let len = r/3 in
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let offset = size*(len*11/7)/2 in
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for i = 0 to size do
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let x = x0 + offset - i*(len*11/7) in
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if Array.mem (!n mod 10) [|0; 4; 5; 6; 7; 8; 9|] then
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draw_poly_line [|(x-len/2, y+len); (x-len/2, y)|];
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if Array.mem (!n mod 10) [|0; 2; 3; 5; 6; 7; 8; 9|] then
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draw_poly_line [|(x-len/2, y+len); (x+len/2, y+len)|];
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if Array.mem (!n mod 10) [|0; 1; 2; 3; 4; 7; 8; 9|] then
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draw_poly_line [|(x+len/2, y+len); (x+len/2, y)|];
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if Array.mem (!n mod 10) [|2; 3; 4; 5; 6; 8; 9|] then
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draw_poly_line [|(x-len/2, y); (x+len/2, y)|];
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if Array.mem (!n mod 10) [|0; 1; 3; 4; 5; 6; 7; 8; 9|] then
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draw_poly_line [|(x+len/2, y-len); (x+len/2, y)|];
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if Array.mem (!n mod 10) [|0; 2; 3; 5; 6; 8; 9|] then
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draw_poly_line [|(x-len/2, y-len); (x+len/2, y-len)|];
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if Array.mem (!n mod 10) [|0; 2; 6; 8|] then
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draw_poly_line [|(x-len/2, y-len); (x-len/2, y)|];
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n := !n/10;
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done ;;
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let identity n = n ;;
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let square x = x *. x ;;
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let norm_int v1 v2 =
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Float.sqrt (square (float_of_int ((fst v2) - (fst v1))) +. square (float_of_int ((snd v2) - -snd v1))) ;;
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let improved_pretty_printing g wd ht r =
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let n = Array.length g in
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let coords = Array.make n (0, 0) in
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let colors = Array.make n (rgb 0 0 0) in
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for i = 0 to n-1 do
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colors.(i) <- rgb ((255 * i) / n) ((255*(i+n/3)) / n) ((255*(2*i+n/3)) / n)
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done;
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for k = 0 to n-1 do
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let theta = 2. *. pi *. (float_of_int k) /. (float_of_int (n)) +. pi /. (float_of_int (n)) in
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let i = ref (int_of_float ((float_of_int wd) /. 2.) + int_of_float ((float_of_int wd) /. 2.2 *. cos theta)) in
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let j = ref (int_of_float ((float_of_int ht) /. 2.) + int_of_float ((float_of_int ht) /. 2.2 *. sin theta)) in
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set_line_width 8 ;
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set_color colors.(k) ;
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draw_circle !i !j r;
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coords.(k) <- (!i, !j)
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done ;
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set_line_width 4 ;
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set_color black ;
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for k = 0 to n-1 do
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for l = 0 to (Array.length g.(k))-1 do
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if g.(k).(l) <> (-1) then begin
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draw_poly_line [|coords.(k); coords.(g.(k).(l))|]
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end
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done
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done;
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set_line_width 8 ;
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for k = 0 to n-1 do
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set_color colors.(k) ;
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for l = 0 to (Array.length g.(k))-1 do
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if g.(k).(l) <> (-1) then begin
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let slope = Float.atan2 (float_of_int (snd coords.(g.(k).(l)) - snd coords.(k))) (float_of_int (fst coords.(g.(k).(l)) - fst coords.(k))) in
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let nexi = int_of_float (float_of_int (fst coords.(k)) +. (float_of_int r) *. 1.75 *. cos slope) in
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let nexj = int_of_float (float_of_int (snd coords.(k)) +. (float_of_int r) *. 1.75 *. sin slope) in
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draw_poly_line [|coords.(k); (nexi, nexj)|]
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end
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done
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done;
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for k = 0 to n-1 do
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set_line_width 10 ;
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set_color black ;
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fill_circle (fst coords.(k)) (snd coords.(k)) r;
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set_color colors.(k) ;
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set_line_width 5 ;
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draw_integer (fst coords.(k)) (snd coords.(k)) k r
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done;
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ignore (Scanf.bscanf Scanf.Scanning.stdin "%d\n" identity) ;;
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(* Another version *)
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type node = {tag : int; edges : int array} ;;
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type type2graph = {width : int ; height : int ; g : node array array} ;;
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(*
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array is length 8 and indicate if there-s a path with the nodes
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[| SO ; O ; NO ; N ; NE ; E ; SE ; S |]
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*)
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let generate_type2_graph w h freq inf sup =
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let weighted_d100 i =
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let res = Random.int 100 in
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if res <= freq then
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try
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(inf + Random.int (sup-inf))
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with
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| Invalid_argument _ -> inf
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else (-1)
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in
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let gr = {width = w ; height = h ; g = Array.make w [||]} in
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for i = 0 to w-1 do
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let init_fct j = {tag = i*h + j; edges = Array.init 8 weighted_d100}
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in
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gr.g.(i) <- Array.init h init_fct;
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done;
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gr ;;
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let another_type_of_graph_printing (gr : type2graph) r dx dy is_weighted =
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let colors = Array.make_matrix gr.width gr.height (rgb 0 0 0) in
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for i = 0 to gr.width -1 do
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for j = 0 to gr.height -1 do
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if (i*gr.width + j) mod 7 = 0 then
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colors.(i).(j) <- rgb 0 0 200
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else if (i*gr.width + j) mod 7 = 1 then
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colors.(i).(j) <- rgb 0 200 0
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else if (i*gr.width + j) mod 7 = 2 then
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colors.(i).(j) <- rgb 0 200 200
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else if (i*gr.width + j) mod 7 = 3 then
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colors.(i).(j) <- rgb 200 0 0
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else if (i*gr.width + j) mod 7 = 4 then
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colors.(i).(j) <- rgb 200 0 200
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else if (i*gr.width + j) mod 7 = 5 then
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colors.(i).(j) <- rgb 200 200 0
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else
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colors.(i).(j) <- rgb 200 200 200
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done
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done;
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set_line_width 4;
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set_color black ;
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for i = 0 to gr.width -1 do
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for j = 0 to gr.height -1 do
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let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
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if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) then begin (* SO *)
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draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j-1))|] ;
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end;
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if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) then begin (* O *)
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draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*j)|] ;
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end;
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if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) then begin (* NO *)
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draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j+1))|] ;
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end;
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if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) then begin (* N *)
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draw_poly_line [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j+1))|] ;
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end;
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if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) then begin (* NE *)
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draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j+1))|] ;
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end;
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if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) then begin (* E *)
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draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*j)|] ;
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end;
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if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) then begin (* SE *)
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draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j-1))|] ;
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end;
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if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) then begin (* S *)
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draw_poly_line [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j-1))|] ;
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end;
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done
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done;
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let roff = (9*r)/8 in
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let roff2 = (7*r)/5 in
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let rsize = (3*r)/4 in
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let wcolor = rgb 255 255 255 in
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let bcolor = rgb 0 0 0 in
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set_line_width 8;
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for i = 0 to gr.width -1 do
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for j = 0 to gr.height -1 do
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let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
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if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) then begin (* SO *)
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if is_weighted then begin
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set_color bcolor;
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fill_circle (fst node_xy - roff) (snd node_xy - roff) (3*rsize/4) ;
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set_color wcolor;
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set_line_width 3;
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draw_integer (fst node_xy - roff) (snd node_xy - roff) gr.g.(i).(j).edges.(0) rsize;
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end
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else begin
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set_line_width 8;
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set_color colors.(i).(j) ;
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draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
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end
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end;
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if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) then begin (* O *)
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if is_weighted then begin
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set_color bcolor;
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fill_circle (fst node_xy - roff2) (snd node_xy) (3*rsize/4) ;
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set_color wcolor;
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set_line_width 3;
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draw_integer (fst node_xy - roff2) (snd node_xy) gr.g.(i).(j).edges.(1) rsize;
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end
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else begin
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set_line_width 8;
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set_color colors.(i).(j) ;
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draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*j)/3|] ;
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end
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end;
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if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) then begin (* NO *)
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if is_weighted then begin
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set_color bcolor;
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fill_circle (fst node_xy - roff) (snd node_xy + roff) (3*rsize/4) ;
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set_color wcolor;
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set_line_width 3;
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draw_integer (fst node_xy - roff) (snd node_xy + roff) gr.g.(i).(j).edges.(2) rsize;
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end
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else begin
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set_line_width 8;
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set_color colors.(i).(j) ;
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draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
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end
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end;
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if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) then begin (* N *)
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if is_weighted then begin
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set_color bcolor;
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fill_circle (fst node_xy) (snd node_xy + roff2) (3*rsize/4) ;
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set_color wcolor;
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set_line_width 3;
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draw_integer (fst node_xy) (snd node_xy + roff2) gr.g.(i).(j).edges.(3) rsize;
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end
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else begin
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set_line_width 8;
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set_color colors.(i).(j) ;
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draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*i)/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
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end
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end;
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if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) then begin (* NE *)
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if is_weighted then begin
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set_color bcolor;
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fill_circle (fst node_xy + roff) (snd node_xy + roff) (3*rsize/4) ;
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set_color wcolor;
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set_line_width 3;
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draw_integer (fst node_xy + roff) (snd node_xy + roff) gr.g.(i).(j).edges.(4) rsize;
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end
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else begin
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set_line_width 8;
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set_color colors.(i).(j) ;
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draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
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end
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end;
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if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) then begin (* E *)
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if is_weighted then begin
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set_color bcolor;
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fill_circle (fst node_xy + roff2) (snd node_xy) (3*rsize/4) ;
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set_color wcolor;
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set_line_width 3;
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draw_integer (fst node_xy + roff2) (snd node_xy) gr.g.(i).(j).edges.(5) rsize;
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end
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else begin
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set_line_width 8;
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set_color colors.(i).(j) ;
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draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*j)/3|] ;
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end
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end;
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if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) then begin (* SE *)
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if is_weighted then begin
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set_color bcolor;
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fill_circle (fst node_xy + roff) (snd node_xy - roff) (3*rsize/4) ;
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set_color wcolor;
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set_line_width 3;
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draw_integer (fst node_xy + roff) (snd node_xy - roff) gr.g.(i).(j).edges.(6) rsize;
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end
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else begin
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set_line_width 8;
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set_color colors.(i).(j) ;
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draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
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end
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end;
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if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) then begin (* S *)
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if is_weighted then begin
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set_color bcolor;
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fill_circle (fst node_xy) (snd node_xy - roff2) (3*rsize/4) ;
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set_color wcolor;
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set_line_width 3;
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draw_integer (fst node_xy) (snd node_xy - roff2) gr.g.(i).(j).edges.(7) rsize;
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end
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else begin
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set_line_width 8;
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set_color colors.(i).(j) ;
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draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*i)/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
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end
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end;
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done
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done;
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set_line_width 5;
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for i = 0 to gr.width -1 do
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for j = 0 to gr.height -1 do
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set_color (rgb 48 48 48) ;
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fill_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
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set_color black ;
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draw_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
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set_color colors.(i).(j) ;
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draw_integer (r + (2*r + dx)*i) (r + (2*r + dy)*j) gr.g.(i).(j).tag r
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done
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done ;
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ignore (Scanf.bscanf Scanf.Scanning.stdin "%d\n" identity) ;;
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(* ------------------------------------------------------------*)
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(* ------------------------------------------------------------*)
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(* ------------------------------------------------------------*)
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let another_type_of_dfs (gr : type2graph) r dx dy dt =
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let colors = Array.make_matrix gr.width gr.height (rgb 0 0 0) in
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for i = 0 to gr.width -1 do
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for j = 0 to gr.height -1 do
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if (i*gr.width + j) mod 6 = 0 then
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colors.(i).(j) <- rgb 0 0 200
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else if (i*gr.width + j) mod 6 = 1 then
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colors.(i).(j) <- rgb 0 200 0
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else if (i*gr.width + j) mod 6 = 2 then
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colors.(i).(j) <- rgb 0 200 200
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else if (i*gr.width + j) mod 6 = 3 then
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colors.(i).(j) <- rgb 200 0 0
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else if (i*gr.width + j) mod 6 = 4 then
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colors.(i).(j) <- rgb 200 0 200
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else
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colors.(i).(j) <- rgb 200 200 0
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done
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done;
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set_line_width 4;
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set_color (rgb 192 192 192) ;
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for i = 0 to gr.width -1 do
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for j = 0 to gr.height -1 do
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let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
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if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) then begin (* SO *)
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draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j-1))|] ;
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end;
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if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) then begin (* O *)
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draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*j)|] ;
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end;
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if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) then begin (* NO *)
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draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j+1))|] ;
|
|
end;
|
|
|
|
if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) then begin (* N *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j+1))|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) then begin (* NE *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j+1))|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) then begin (* E *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*j)|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) then begin (* SE *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j-1))|] ;
|
|
end;
|
|
|
|
if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) then begin (* S *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j-1))|] ;
|
|
end;
|
|
|
|
done
|
|
done;
|
|
|
|
set_line_width 8;
|
|
for i = 0 to gr.width -1 do
|
|
for j = 0 to gr.height -1 do
|
|
let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
|
|
if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) then begin (* SO *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
|
|
end;
|
|
|
|
if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) then begin (* O *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*j)/3|] ;
|
|
end;
|
|
|
|
if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) then begin (* NO *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
|
|
end;
|
|
|
|
if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) then begin (* N *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*i)/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) then begin (* NE *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) then begin (* E *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*j)/3|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) then begin (* SE *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
|
|
end;
|
|
|
|
if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) then begin (* S *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*i)/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
|
|
end;
|
|
|
|
done
|
|
done;
|
|
|
|
set_line_width 5;
|
|
for i = 0 to gr.width -1 do
|
|
for j = 0 to gr.height -1 do
|
|
set_color (rgb 192 192 192) ;
|
|
fill_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color (rgb 100 100 100) ;
|
|
draw_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
draw_integer (r + (2*r + dx)*i) (r + (2*r + dy)*j) gr.g.(i).(j).tag r
|
|
done
|
|
done ;
|
|
|
|
let draw_tile i j =
|
|
set_line_width 5;
|
|
set_color (rgb 48 48 48) ;
|
|
fill_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color black;
|
|
draw_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color colors.(i).(j);
|
|
draw_integer (r + (2*r + dx)*i) (r + (2*r + dy)*j) gr.g.(i).(j).tag r ;
|
|
in
|
|
|
|
(* Now for the actual DFS *)
|
|
let visited = Array.make_matrix gr.width gr.height false in
|
|
|
|
let rec explore i j depth =
|
|
if visited.(i).(j) = false then begin
|
|
visited.(i).(j) <- true;
|
|
|
|
draw_tile i j;
|
|
|
|
set_color white;
|
|
fill_circle (r + (2*r + dx)*(gr.width/2)) (r + (2*r + dy)*(gr.height/2)) r;
|
|
set_color black;
|
|
draw_integer (r + (2*r + dx)*(gr.width/2)) (r + (2*r + dy)*(gr.height/2)) depth r;
|
|
|
|
Unix.sleepf dt;
|
|
|
|
let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
|
|
|
|
if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) && (visited.(i-1).(j-1) = false) then begin (* SO *)
|
|
set_line_width 4;
|
|
set_color black;
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j-1))|] ;
|
|
set_color colors.(i).(j);
|
|
set_line_width 8;
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
|
|
|
|
draw_tile i j;
|
|
|
|
explore (i-1) (j-1) (depth+1) ;
|
|
end;
|
|
|
|
if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) && (visited.(i-1).(j) = false) then begin (* O *)
|
|
set_line_width 4;
|
|
set_color black;
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*j)|] ;
|
|
set_color colors.(i).(j);
|
|
set_line_width 8;
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*j)/3|] ;
|
|
|
|
draw_tile i j;
|
|
|
|
explore (i-1) j (depth+1);
|
|
end;
|
|
|
|
if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) && (visited.(i-1).(j+1) = false) then begin (* NO *)
|
|
set_line_width 4;
|
|
set_color black;
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j+1))|] ;
|
|
set_color colors.(i).(j);
|
|
set_line_width 8;
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
|
|
|
|
draw_tile i j;
|
|
|
|
explore (i-1) (j+1) (depth+1);
|
|
end;
|
|
|
|
if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) && (visited.(i).(j+1) = false) then begin (* N *)
|
|
set_line_width 4;
|
|
set_color black;
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j+1))|] ;
|
|
set_color colors.(i).(j);
|
|
set_line_width 8;
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*i)/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
|
|
|
|
draw_tile i j;
|
|
|
|
explore i (j+1) (depth+1);
|
|
end;
|
|
|
|
if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) && (visited.(i+1).(j+1) = false) then begin (* NE *)
|
|
set_line_width 4;
|
|
set_color black;
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j+1))|] ;
|
|
set_color colors.(i).(j);
|
|
set_line_width 8;
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
|
|
|
|
draw_tile i j;
|
|
|
|
explore (i+1) (j+1) (depth+1);
|
|
end;
|
|
|
|
if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) && (visited.(i+1).(j) = false) then begin (* E *)
|
|
set_line_width 4;
|
|
set_color black;
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*j)|] ;
|
|
set_color colors.(i).(j);
|
|
set_line_width 8;
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*j)/3|] ;
|
|
|
|
draw_tile i j;
|
|
|
|
explore (i+1) j (depth+1);
|
|
end;
|
|
|
|
if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) && (visited.(i+1).(j-1) = false) then begin (* SE *)
|
|
set_line_width 4;
|
|
set_color black;
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j-1))|] ;
|
|
set_color colors.(i).(j);
|
|
set_line_width 8;
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
|
|
|
|
draw_tile i j;
|
|
|
|
explore (i+1) (j-1) (depth+1);
|
|
end;
|
|
|
|
if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) && (visited.(i).(j-1) = false) then begin (* S *)
|
|
set_line_width 4;
|
|
set_color black;
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j-1))|] ;
|
|
set_color colors.(i).(j);
|
|
set_line_width 8;
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*i)/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
|
|
|
|
draw_tile i j;
|
|
|
|
explore i (j-1) (depth+1);
|
|
end;
|
|
|
|
end
|
|
in
|
|
|
|
explore (gr.width/2) (gr.height/2) 0;
|
|
|
|
ignore (Scanf.bscanf Scanf.Scanning.stdin "%d\n" identity) ;;
|
|
|
|
(* ------------------------------------------------------------*)
|
|
(* ------------------------------------------------------------*)
|
|
(* ------------------------------------------------------------*)
|
|
|
|
let another_type_of_bfs (gr : type2graph) r dx dy gwd ght dt =
|
|
let colors = Array.make_matrix gr.width gr.height (rgb 0 0 0) in
|
|
for i = 0 to gr.width -1 do
|
|
for j = 0 to gr.height -1 do
|
|
if (i*gr.width + j) mod 6 = 0 then
|
|
colors.(i).(j) <- rgb 0 0 200
|
|
|
|
else if (i*gr.width + j) mod 6 = 1 then
|
|
colors.(i).(j) <- rgb 0 200 0
|
|
|
|
else if (i*gr.width + j) mod 6 = 2 then
|
|
colors.(i).(j) <- rgb 0 200 200
|
|
|
|
else if (i*gr.width + j) mod 6 = 3 then
|
|
colors.(i).(j) <- rgb 200 0 0
|
|
|
|
else if (i*gr.width + j) mod 6 = 4 then
|
|
colors.(i).(j) <- rgb 200 0 200
|
|
|
|
else
|
|
colors.(i).(j) <- rgb 200 200 0
|
|
done
|
|
done;
|
|
|
|
set_line_width 4;
|
|
set_color (rgb 192 192 192) ;
|
|
for i = 0 to gr.width -1 do
|
|
for j = 0 to gr.height -1 do
|
|
let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
|
|
if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) then begin (* SO *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j-1))|] ;
|
|
end;
|
|
|
|
if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) then begin (* O *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*j)|] ;
|
|
end;
|
|
|
|
if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) then begin (* NO *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j+1))|] ;
|
|
end;
|
|
|
|
if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) then begin (* N *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j+1))|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) then begin (* NE *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j+1))|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) then begin (* E *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*j)|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) then begin (* SE *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j-1))|] ;
|
|
end;
|
|
|
|
if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) then begin (* S *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j-1))|] ;
|
|
end;
|
|
|
|
done
|
|
done;
|
|
|
|
set_line_width 8;
|
|
for i = 0 to gr.width -1 do
|
|
for j = 0 to gr.height -1 do
|
|
let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
|
|
if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) then begin (* SO *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
|
|
end;
|
|
|
|
if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) then begin (* O *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*j)/3|] ;
|
|
end;
|
|
|
|
if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) then begin (* NO *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
|
|
end;
|
|
|
|
if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) then begin (* N *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*i)/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) then begin (* NE *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) then begin (* E *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*j)/3|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) then begin (* SE *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
|
|
end;
|
|
|
|
if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) then begin (* S *)
|
|
draw_poly_line [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*i)/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|] ;
|
|
end;
|
|
|
|
done
|
|
done;
|
|
|
|
set_line_width 5;
|
|
for i = 0 to gr.width -1 do
|
|
for j = 0 to gr.height -1 do
|
|
set_color (rgb 192 192 192) ;
|
|
fill_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color (rgb 100 100 100) ;
|
|
draw_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
draw_integer (r + (2*r + dx)*i) (r + (2*r + dy)*j) gr.g.(i).(j).tag r
|
|
done
|
|
done ;
|
|
|
|
let draw_tile i j =
|
|
set_line_width 5;
|
|
set_color (rgb 48 48 48) ;
|
|
fill_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color black;
|
|
draw_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color colors.(i).(j);
|
|
draw_integer (r + (2*r + dx)*i) (r + (2*r + dy)*j) gr.g.(i).(j).tag r ;
|
|
in
|
|
|
|
(* Actual BFS *)
|
|
|
|
let pq = Queue.create () in
|
|
|
|
Queue.add (0, gr.width/2, gr.height/2, gr.width/2, gr.height/2, [||], [||]) pq ;
|
|
|
|
let visited = Array.make_matrix gr.width gr.height false in
|
|
|
|
try
|
|
while true do
|
|
let (depth, i0, j0, i, j, path_arr, bigpath_arr) = Queue.take pq in
|
|
|
|
if visited.(i).(j) = false then begin
|
|
set_line_width 4;
|
|
set_color black;
|
|
draw_poly_line path_arr ;
|
|
set_color colors.(i).(j);
|
|
set_line_width 8;
|
|
draw_poly_line bigpath_arr ;
|
|
|
|
draw_tile i j;
|
|
|
|
set_color colors.(i0).(j0) ;
|
|
draw_tile i0 j0;
|
|
|
|
visited.(i).(j) <- true;
|
|
|
|
set_color white;
|
|
fill_circle (r + (2*r + dx)*(gr.width/2)) (r + (2*r + dy)*(gr.height/2)) r;
|
|
set_color black;
|
|
draw_integer (r + (2*r + dx)*(gr.width/2)) (r + (2*r + dy)*(gr.height/2)) depth r;
|
|
|
|
Unix.sleepf dt;
|
|
|
|
let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
|
|
|
|
if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) && (visited.(i-1).(j-1) = false) then begin (* SO *)
|
|
Queue.add (depth+1, i, j, i-1, j-1, [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j-1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|]) pq;
|
|
end;
|
|
|
|
if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) && (visited.(i-1).(j) = false) then begin (* O *)
|
|
Queue.add (depth+1, i, j, i-1, j, [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*j)|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*j)/3|]) pq;
|
|
end;
|
|
|
|
if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) && (visited.(i-1).(j+1) = false) then begin (* NO *)
|
|
Queue.add (depth+1, i, j, i-1, j+1, [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j+1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|]) pq;
|
|
end;
|
|
|
|
if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) && (visited.(i).(j+1) = false) then begin (* N *)
|
|
Queue.add (depth+1, i, j, i, j+1, [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j+1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*i)/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|]) pq;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) && (visited.(i+1).(j+1) = false) then begin (* NE *)
|
|
Queue.add (depth+1, i, j, i+1, j+1, [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j+1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j+1))/3|]) pq;
|
|
end;
|
|
|
|
if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) && (visited.(i+1).(j) = false) then begin (* E *)
|
|
Queue.add (depth+1, i, j, i+1, j, [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*j)|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*j)/3|]) pq;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) && (visited.(i+1).(j-1) = false) then begin (* SE *)
|
|
Queue.add (depth+1, i, j, i+1, j-1, [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j-1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|]) pq;
|
|
end;
|
|
|
|
if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) && (visited.(i).(j-1) = false) then begin (* S *)
|
|
Queue.add (depth+1, i, j, i, j-1, [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j-1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dx)*i)/3, (2 * (snd node_xy) + r + (2*r + dy)*(j-1))/3|]) pq;
|
|
end
|
|
end;
|
|
done;
|
|
()
|
|
with
|
|
| Stdlib.Queue.Empty -> ignore (Scanf.bscanf Scanf.Scanning.stdin "%d\n" identity) ;;
|
|
|
|
|
|
(* ------------------------------------------------------------*)
|
|
(* ------------------------------------------------------------*)
|
|
(* ------------------------------------------------------------*)
|
|
(* ------------------------------------------------------------*)
|
|
(* ------------------------------------------------------------*)
|
|
|
|
type 'a dynamic_array = { mutable arr : 'a array ; mutable len : int } ;;
|
|
|
|
|
|
let create () =
|
|
{ arr = [||] ; len = 0 } ;;
|
|
|
|
let init a =
|
|
{ arr = a ; len = Array.length a } ;;
|
|
|
|
let length a = a.len ;;
|
|
|
|
let get a i =
|
|
assert(0 <= i && i < a.len) ;
|
|
a.arr.(i) ;;
|
|
|
|
|
|
let set a i x =
|
|
assert(0 <= i && i < a.len) ;
|
|
a.arr.(i) <- x ;;
|
|
|
|
let resize a newlen e =
|
|
a.arr <- Array.init newlen (fun i -> if i < a.len then a.arr.(i) else e) ;;
|
|
|
|
let append a e =
|
|
if a.len = Array.length a.arr then
|
|
resize a (a.len * 2 + 1) e ;
|
|
a.arr.(a.len) <- e ;
|
|
a.len <- a.len + 1 ;;
|
|
|
|
let pop a =
|
|
assert(a.len > 0) ;
|
|
a.len <- a.len - 1 ;
|
|
let x = a.arr.(a.len) in
|
|
if a.len < (Array.length a.arr) / 4 then
|
|
resize a (a.len * 2) a.arr.(0) ;
|
|
x ;;
|
|
|
|
module H = Hashtbl ;;
|
|
|
|
(*
|
|
'a : type for elements
|
|
'b : type for priorities (hypothesis : totally ordered type).
|
|
*)
|
|
type ('a, 'b) priority_queue = { heap : ('a * 'b) dynamic_array ; locate : ('a, int) H.t } ;;
|
|
|
|
|
|
let pq_create () =
|
|
{ heap = create () ; locate = H.create 200 } ;;
|
|
|
|
|
|
let pq_is_empty pq =
|
|
length pq.heap = 0 ;;
|
|
|
|
let pq_mem pq elt =
|
|
H.mem pq.locate elt ;;
|
|
|
|
(* SWAPS indexes i and j in the heap AND the hash table : *)
|
|
let pq_swap pq i j =
|
|
let elt1 = fst (get pq.heap i)
|
|
and elt2 = fst (get pq.heap j) in
|
|
|
|
let tmp = (get pq.heap i) in
|
|
set pq.heap i (get pq.heap j) ;
|
|
set pq.heap j tmp ;
|
|
|
|
H.replace pq.locate elt1 j ;
|
|
H.replace pq.locate elt2 i ;;
|
|
|
|
|
|
|
|
|
|
|
|
(* PERCOLATE UP AND DOWN *)
|
|
|
|
let pq_get_priority pq i =
|
|
snd (get pq.heap i) ;;
|
|
|
|
|
|
let rec pq_percolate_up pq i =
|
|
let father = ((i-1)/2) in
|
|
if i > 0 && (pq_get_priority pq i) < (pq_get_priority pq father) then begin
|
|
pq_swap pq i father ;
|
|
pq_percolate_up pq father
|
|
end ;;
|
|
|
|
let rec pq_percolate_down pq i =
|
|
let n = length pq.heap in
|
|
let left_child = 2*i+1 and right_child = 2*i+2 in
|
|
|
|
let m = ref (pq_get_priority pq i) in
|
|
let max_node = ref i in
|
|
|
|
if left_child < n && pq_get_priority pq left_child < !m then begin
|
|
m := pq_get_priority pq left_child ;
|
|
max_node := left_child
|
|
end ;
|
|
|
|
if right_child < n && pq_get_priority pq right_child < !m then begin
|
|
m := pq_get_priority pq right_child ;
|
|
max_node := right_child
|
|
end ;
|
|
|
|
if !max_node <> i then
|
|
pq_swap pq i !max_node ;;
|
|
|
|
|
|
|
|
(* ACTUAL FUNCTIONS *)
|
|
|
|
exception BreakOfLoop ;;
|
|
|
|
let pq_add elt pq prio =
|
|
append pq.heap (elt, prio) ;
|
|
H.add pq.locate elt (length pq.heap - 1) ;
|
|
pq_percolate_up pq (length pq.heap - 1) ;;
|
|
|
|
let pq_min pq =
|
|
assert(length pq.heap > 0 ) ;
|
|
get pq.heap 0 ;;
|
|
|
|
let pq_extract_min pq =
|
|
let n = length pq.heap in
|
|
if n <= 0 then raise BreakOfLoop;
|
|
pq_swap pq 0 (n-1) ;
|
|
let (elt, prio) = pop pq.heap in
|
|
H.remove pq.locate elt ;
|
|
|
|
if n > 1 then
|
|
pq_percolate_down pq 0 ;
|
|
(elt, prio) ;;
|
|
|
|
|
|
let pq_priority pq elt =
|
|
pq_get_priority pq (H.find pq.locate elt) ;;
|
|
|
|
let pq_update_priority pq elt prio =
|
|
let index = H.find pq.locate elt in
|
|
let p = pq_get_priority pq index in
|
|
set pq.heap index (elt, prio) ;
|
|
if p > prio then
|
|
pq_percolate_up pq index
|
|
else
|
|
pq_percolate_down pq index ;;
|
|
|
|
|
|
let pq_init a default_priority =
|
|
let pq = pq_create () in
|
|
Array.iter (fun x -> pq_add x pq default_priority) a ;
|
|
pq ;;
|
|
|
|
(* ------------------------------------------------------------*)
|
|
(* ------------------------------------------------------------*)
|
|
(* ------------------------------------------------------------*)
|
|
|
|
let another_type_of_dijkstra (gr : type2graph) r dx dy dt gwd ght =
|
|
let colors = Array.make_matrix gr.width gr.height (rgb 0 0 0) in
|
|
for i = 0 to gr.width -1 do
|
|
for j = 0 to gr.height -1 do
|
|
if (i*gr.width + j) mod 7 = 0 then
|
|
colors.(i).(j) <- rgb 0 0 200
|
|
|
|
else if (i*gr.width + j) mod 7 = 1 then
|
|
colors.(i).(j) <- rgb 0 200 0
|
|
|
|
else if (i*gr.width + j) mod 7 = 2 then
|
|
colors.(i).(j) <- rgb 0 200 200
|
|
|
|
else if (i*gr.width + j) mod 7 = 3 then
|
|
colors.(i).(j) <- rgb 200 0 0
|
|
|
|
else if (i*gr.width + j) mod 7 = 4 then
|
|
colors.(i).(j) <- rgb 200 0 200
|
|
|
|
else if (i*gr.width + j) mod 7 = 5 then
|
|
colors.(i).(j) <- rgb 200 200 0
|
|
|
|
else
|
|
colors.(i).(j) <- rgb 200 200 200
|
|
done
|
|
done;
|
|
|
|
set_line_width 4;
|
|
set_color black ;
|
|
for i = 0 to gr.width -1 do
|
|
for j = 0 to gr.height -1 do
|
|
let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
|
|
if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) then begin (* SO *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j-1))|] ;
|
|
end;
|
|
|
|
if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) then begin (* O *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*j)|] ;
|
|
end;
|
|
|
|
if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) then begin (* NO *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i-1)), (r + (2*r + dy)*(j+1))|] ;
|
|
end;
|
|
|
|
if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) then begin (* N *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j+1))|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) then begin (* NE *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j+1))|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) then begin (* E *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*j)|] ;
|
|
end;
|
|
|
|
if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) then begin (* SE *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*(i+1)), (r + (2*r + dy)*(j-1))|] ;
|
|
end;
|
|
|
|
if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) then begin (* S *)
|
|
draw_poly_line [|node_xy; (r + (2*r + dx)*i), (r + (2*r + dy)*(j-1))|] ;
|
|
end;
|
|
|
|
done
|
|
done;
|
|
|
|
let roff = (9*r)/8 in
|
|
let roff2 = (7*r)/5 in
|
|
let rsize = (3*r)/4 in
|
|
let wcolor = rgb 64 64 64 in
|
|
let bcolor = rgb 0 0 0 in
|
|
|
|
let is_weighted = true in
|
|
|
|
set_line_width 8;
|
|
for i = 0 to gr.width -1 do
|
|
for j = 0 to gr.height -1 do
|
|
let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
|
|
if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) then begin (* SO *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy - roff) (snd node_xy - roff) (3*rsize/4) ;
|
|
set_color wcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy - roff) (snd node_xy - roff) gr.g.(i).(j).edges.(0) rsize;
|
|
end
|
|
end;
|
|
|
|
if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) then begin (* O *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy - roff2) (snd node_xy) (3*rsize/4) ;
|
|
set_color wcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy - roff2) (snd node_xy) gr.g.(i).(j).edges.(1) rsize;
|
|
end
|
|
end;
|
|
|
|
if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) then begin (* NO *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy - roff) (snd node_xy + roff) (3*rsize/4) ;
|
|
set_color wcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy - roff) (snd node_xy + roff) gr.g.(i).(j).edges.(2) rsize;
|
|
end
|
|
end;
|
|
|
|
if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) then begin (* N *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy) (snd node_xy + roff2) (3*rsize/4) ;
|
|
set_color wcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy) (snd node_xy + roff2) gr.g.(i).(j).edges.(3) rsize;
|
|
end
|
|
end;
|
|
|
|
if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) then begin (* NE *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy + roff) (snd node_xy + roff) (3*rsize/4) ;
|
|
set_color wcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy + roff) (snd node_xy + roff) gr.g.(i).(j).edges.(4) rsize;
|
|
end
|
|
end;
|
|
|
|
if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) then begin (* E *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy + roff2) (snd node_xy) (3*rsize/4) ;
|
|
set_color wcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy + roff2) (snd node_xy) gr.g.(i).(j).edges.(5) rsize;
|
|
end
|
|
end;
|
|
|
|
if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) then begin (* SE *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy + roff) (snd node_xy - roff) (3*rsize/4) ;
|
|
set_color wcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy + roff) (snd node_xy - roff) gr.g.(i).(j).edges.(6) rsize;
|
|
end
|
|
end;
|
|
|
|
if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) then begin (* S *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy) (snd node_xy - roff2) (3*rsize/4) ;
|
|
set_color wcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy) (snd node_xy - roff2) gr.g.(i).(j).edges.(7) rsize;
|
|
end
|
|
end;
|
|
|
|
done
|
|
done;
|
|
|
|
set_line_width 5;
|
|
for i = 0 to gr.width -1 do
|
|
for j = 0 to gr.height -1 do
|
|
set_color (rgb 48 48 48) ;
|
|
fill_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color black ;
|
|
draw_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color (rgb 48 48 48) ;
|
|
draw_integer (r + (2*r + dx)*i) (r + (2*r + dy)*j) gr.g.(i).(j).tag r
|
|
done
|
|
done ;
|
|
|
|
let draw_tile i j =
|
|
set_line_width 5;
|
|
set_color (rgb 48 48 48) ;
|
|
fill_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color black;
|
|
draw_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color colors.(i).(j);
|
|
draw_integer (r + (2*r + dx)*i) (r + (2*r + dy)*j) gr.g.(i).(j).tag r ;
|
|
|
|
let fcolor = rgb 255 0 0 in
|
|
|
|
let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
|
|
if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) then begin (* SO *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy - roff) (snd node_xy - roff) (3*rsize/4) ;
|
|
set_color fcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy - roff) (snd node_xy - roff) gr.g.(i).(j).edges.(0) rsize;
|
|
end
|
|
end;
|
|
|
|
if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) then begin (* O *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy - roff2) (snd node_xy) (3*rsize/4) ;
|
|
set_color fcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy - roff2) (snd node_xy) gr.g.(i).(j).edges.(1) rsize;
|
|
end
|
|
end;
|
|
|
|
if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) then begin (* NO *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy - roff) (snd node_xy + roff) (3*rsize/4) ;
|
|
set_color fcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy - roff) (snd node_xy + roff) gr.g.(i).(j).edges.(2) rsize;
|
|
end
|
|
end;
|
|
|
|
if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) then begin (* N *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy) (snd node_xy + roff2) (3*rsize/4) ;
|
|
set_color fcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy) (snd node_xy + roff2) gr.g.(i).(j).edges.(3) rsize;
|
|
end
|
|
end;
|
|
|
|
if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) then begin (* NE *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy + roff) (snd node_xy + roff) (3*rsize/4) ;
|
|
set_color fcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy + roff) (snd node_xy + roff) gr.g.(i).(j).edges.(4) rsize;
|
|
end
|
|
end;
|
|
|
|
if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) then begin (* E *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy + roff2) (snd node_xy) (3*rsize/4) ;
|
|
set_color fcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy + roff2) (snd node_xy) gr.g.(i).(j).edges.(5) rsize;
|
|
end
|
|
end;
|
|
|
|
if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) then begin (* SE *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy + roff) (snd node_xy - roff) (3*rsize/4) ;
|
|
set_color fcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy + roff) (snd node_xy - roff) gr.g.(i).(j).edges.(6) rsize;
|
|
end
|
|
end;
|
|
|
|
if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) then begin (* S *)
|
|
if is_weighted then begin
|
|
set_color bcolor;
|
|
fill_circle (fst node_xy) (snd node_xy - roff2) (3*rsize/4) ;
|
|
set_color fcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy) (snd node_xy - roff2) gr.g.(i).(j).edges.(7) rsize;
|
|
end
|
|
end;
|
|
in
|
|
|
|
(* Actual BFS *)
|
|
|
|
let pq = pq_create () in
|
|
|
|
pq_add (gr.width/2, gr.height/2, gr.width/2, gr.height/2, [||], [||]) pq 0 ;
|
|
|
|
let drawn = Array.make_matrix gr.width gr.height false in
|
|
|
|
let loops = Array.make_matrix gr.width gr.height [||] in
|
|
for i = 0 to gr.width-1 do
|
|
for j = 0 to gr.height-1 do
|
|
loops.(i).(j) <- Array.make 8 false;
|
|
done
|
|
done;
|
|
|
|
let dcolor = rgb 0 255 0 in
|
|
|
|
let done_smth = ref true in
|
|
|
|
let mindists = Array.make_matrix gr.width gr.height 999 in
|
|
|
|
try
|
|
while true do
|
|
done_smth := false;
|
|
let ((i0, j0, i, j, path_arr, bigpath_arr), depth) = pq_extract_min pq in
|
|
|
|
if true then begin
|
|
if drawn.(i).(j) = false then begin
|
|
drawn.(i).(j) <- true;
|
|
draw_tile i j;
|
|
done_smth := true;
|
|
end;
|
|
|
|
if drawn.(i0).(j0) = false then begin
|
|
drawn.(i0).(j0) <- true;
|
|
draw_tile i0 j0;
|
|
done_smth := true;
|
|
end;
|
|
|
|
if mindists.(i).(j) > depth then begin
|
|
mindists.(i).(j) <- depth;
|
|
set_color (rgb 48 48 48) ;
|
|
fill_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color black ;
|
|
draw_circle (r + (2*r + dx)*i) (r + (2*r + dy)*j) r ;
|
|
set_color colors.(i).(j);
|
|
draw_integer (r + (2*r + dx)*i) (r + (2*r + dy)*j) depth r
|
|
end;
|
|
|
|
let node_xy = ((r + (2*r + dx)*i0), (r + (2*r + dy)*j0)) in
|
|
let dxx = i - i0 and dyy = j - j0 in
|
|
if (dxx, dyy) = (1, 1) then begin
|
|
set_color dcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy + roff) (snd node_xy + roff) gr.g.(i0).(j0).edges.(4) rsize;
|
|
done_smth := true;
|
|
end
|
|
else if (dxx, dyy) = (1, 0) then begin
|
|
set_color dcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy + roff2) (snd node_xy) gr.g.(i0).(j0).edges.(5) rsize;
|
|
done_smth := true;
|
|
end
|
|
else if (dxx, dyy) = (1, -1) then begin
|
|
set_color dcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy + roff) (snd node_xy - roff) gr.g.(i0).(j0).edges.(6) rsize;
|
|
done_smth := true;
|
|
end
|
|
else if (dxx, dyy) = (0, -1) then begin
|
|
set_color dcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy) (snd node_xy - roff2) gr.g.(i0).(j0).edges.(7) rsize;
|
|
done_smth := true;
|
|
end
|
|
else if (dxx, dyy) = (-1, -1) then begin
|
|
set_color dcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy - roff) (snd node_xy - roff) gr.g.(i0).(j0).edges.(0) rsize;
|
|
done_smth := true;
|
|
end
|
|
else if (dxx, dyy) = (-1, 0) then begin
|
|
set_color dcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy - roff2) (snd node_xy) gr.g.(i0).(j0).edges.(1) rsize;
|
|
done_smth := true;
|
|
end
|
|
else if (dxx, dyy) = (-1, 1) then begin
|
|
set_color dcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy - roff) (snd node_xy + roff) gr.g.(i0).(j0).edges.(2) rsize;
|
|
done_smth := true;
|
|
end
|
|
else if (dxx, dyy) = (0, 1) then begin
|
|
set_color dcolor;
|
|
set_line_width 3;
|
|
draw_integer (fst node_xy) (snd node_xy + roff2) gr.g.(i0).(j0).edges.(3) rsize;
|
|
done_smth := true;
|
|
end;
|
|
|
|
set_color white;
|
|
fill_circle (r + (2*r + dx)*(gr.width/2)) (r + (2*r + dy)*(gr.height/2)) r;
|
|
set_color black;
|
|
draw_integer (r + (2*r + dx)*(gr.width/2)) (r + (2*r + dy)*(gr.height/2)) depth r;
|
|
|
|
if !done_smth then
|
|
Unix.sleepf dt;
|
|
|
|
let node_xy = ((r + (2*r + dx)*i), (r + (2*r + dy)*j)) in
|
|
|
|
if (i > 0 && j > 0) && gr.g.(i).(j).edges.(0) <> (-1) && ((i >= 0) && (j >= 0) && (i < gr.width) && (j < gr.height)) && loops.(i).(j).(0) = false then begin (* SO *)
|
|
loops.(i).(j).(0) <- true;
|
|
pq_add (i, j, i-1, j-1, [|node_xy; (r + (2*r + dxx)*(i-1)), (r + (2*r + dyy)*(j-1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dxx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dyy)*(j-1))/3|]) pq (depth+gr.g.(i).(j).edges.(0));
|
|
end;
|
|
|
|
if (i > 0) && gr.g.(i).(j).edges.(1) <> (-1) && ((i >= 0) && (j >= 0) && (i < gr.width) && (j < gr.height)) && loops.(i).(j).(1) = false then begin (* O *)
|
|
loops.(i).(j).(1) <- true;
|
|
pq_add (i, j, i-1, j, [|node_xy; (r + (2*r + dxx)*(i-1)), (r + (2*r + dyy)*j)|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dxx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dyy)*j)/3|]) pq (depth+gr.g.(i).(j).edges.(1));
|
|
end;
|
|
|
|
if (i > 0 && j < gr.height -1) && gr.g.(i).(j).edges.(2) <> (-1) && ((i >= 0) && (j >= 0) && (i < gr.width) && (j < gr.height)) && loops.(i).(j).(2) = false then begin (* NO *)
|
|
loops.(i).(j).(2) <- true;
|
|
pq_add (i, j, i-1, j+1, [|node_xy; (r + (2*r + dxx)*(i-1)), (r + (2*r + dyy)*(j+1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dxx)*(i-1))/3, (2 * (snd node_xy) + r + (2*r + dyy)*(j+1))/3|]) pq (depth+gr.g.(i).(j).edges.(2));
|
|
end;
|
|
|
|
if (j < gr.height -1) && gr.g.(i).(j).edges.(3) <> (-1) && ((i >= 0) && (j >= 0) && (i < gr.width) && (j < gr.height)) && loops.(i).(j).(3) = false then begin (* N *)
|
|
loops.(i).(j).(3) <- true;
|
|
pq_add (i, j, i, j+1, [|node_xy; (r + (2*r + dxx)*i), (r + (2*r + dyy)*(j+1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dxx)*i)/3, (2 * (snd node_xy) + r + (2*r + dyy)*(j+1))/3|]) pq (depth+gr.g.(i).(j).edges.(3));
|
|
end;
|
|
|
|
if (i < gr.width-1 && j < gr.height -1) && gr.g.(i).(j).edges.(4) <> (-1) && ((i >= 0) && (j >= 0) && (i < gr.width) && (j < gr.height)) && loops.(i).(j).(4) = false then begin (* NE *)
|
|
loops.(i).(j).(4) <- true;
|
|
pq_add (i, j, i+1, j+1, [|node_xy; (r + (2*r + dxx)*(i+1)), (r + (2*r + dyy)*(j+1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dxx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dyy)*(j+1))/3|]) pq (depth+gr.g.(i).(j).edges.(4));
|
|
end;
|
|
|
|
if (i < gr.width-1) && gr.g.(i).(j).edges.(5) <> (-1) && ((i >= 0) && (j >= 0) && (i < gr.width) && (j < gr.height)) && loops.(i).(j).(5) = false then begin (* E *)
|
|
loops.(i).(j).(5) <- true;
|
|
pq_add (i, j, i+1, j, [|node_xy; (r + (2*r + dxx)*(i+1)), (r + (2*r + dyy)*j)|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dxx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dyy)*j)/3|]) pq (depth+gr.g.(i).(j).edges.(5));
|
|
end;
|
|
|
|
if (i < gr.width-1 && j > 0) && gr.g.(i).(j).edges.(6) <> (-1) && ((i >= 0) && (j >= 0) && (i < gr.width) && (j < gr.height)) && loops.(i).(j).(6) = false then begin (* SE *)
|
|
loops.(i).(j).(6) <- true;
|
|
pq_add (i, j, i+1, j-1, [|node_xy; (r + (2*r + dxx)*(i+1)), (r + (2*r + dyy)*(j-1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dxx)*(i+1))/3, (2 * (snd node_xy) + r + (2*r + dyy)*(j-1))/3|]) pq (depth+gr.g.(i).(j).edges.(6));
|
|
end;
|
|
|
|
if (j > 0) && gr.g.(i).(j).edges.(7) <> (-1) && ((i >= 0) && (j >= 0) && (i < gr.width) && (j < gr.height)) && loops.(i).(j).(7) = false then begin (* S *)
|
|
loops.(i).(j).(7) <- true;
|
|
pq_add (i, j, i, j-1, [|node_xy; (r + (2*r + dxx)*i), (r + (2*r + dyy)*(j-1))|], [|node_xy; (2 * (fst node_xy) + r + (2*r + dxx)*i)/3, (2 * (snd node_xy) + r + (2*r + dyy)*(j-1))/3|]) pq (depth+gr.g.(i).(j).edges.(7));
|
|
end
|
|
end;
|
|
done;
|
|
()
|
|
with
|
|
| BreakOfLoop -> ignore (Scanf.bscanf Scanf.Scanning.stdin "%d\n" identity) ;;
|
|
|
|
(* ------------------------------------------------------------*)
|
|
(* ------------------------------------------------------------*)
|
|
(* ------------------------------------------------------------*)
|
|
|
|
(* ----------------------- Tests --------------------------- *)
|
|
|
|
let main r =
|
|
Stdlib.print_endline "Enter the width of the graph (use 8 for weighted): ";
|
|
let wd = Scanf.bscanf Scanf.Scanning.stdin "%d\n" identity in
|
|
|
|
if wd <= 0 then failwith "Error : invalid input";
|
|
|
|
Stdlib.print_endline "Enter the height of the graph (use 6 for weighted): ";
|
|
let ht = Scanf.bscanf Scanf.Scanning.stdin "%d\n" identity in
|
|
|
|
if ht <= 0 then failwith "Error : invalid input";
|
|
|
|
Stdlib.print_endline "Is the grap weighted ? (0/1)";
|
|
let is_weighted = Scanf.bscanf Scanf.Scanning.stdin "%d\n" identity in
|
|
let weighted = ref false in
|
|
|
|
if is_weighted = 1 then weighted := true;
|
|
|
|
Stdlib.print_endline "Enter the mode :\n0 for display\n1 for BFS\n2 for DFS\n3 for Dijkstra\n";
|
|
let choice = Scanf.bscanf Scanf.Scanning.stdin "%d\n" identity in
|
|
|
|
open_graph " 1500x1000" ;
|
|
set_window_title "Graphs" ;
|
|
|
|
let gwd = 1500-r and ght = 1000-r in
|
|
|
|
let offset_x = (gwd - r)/(wd-1) - 2*r in
|
|
let offset_y = (ght - r)/(ht-1) - 2*r in
|
|
|
|
let type2 = generate_type2_graph wd ht r 1 60 in
|
|
|
|
let dt = 0.25 in
|
|
|
|
if choice = 0 then begin another_type_of_graph_printing type2 r offset_x offset_y !weighted; close_graph () end
|
|
else if choice = 1 then begin another_type_of_dfs type2 r offset_x offset_y dt ; close_graph () end
|
|
else if choice = 2 then begin another_type_of_bfs type2 r offset_x offset_y gwd ght dt ; close_graph () end
|
|
else if choice = 3 then begin another_type_of_dijkstra type2 r offset_x offset_y dt gwd ght ; close_graph () end
|
|
else failwith "Error : invalid input";;
|
|
|
|
main 35;;
|
|
|
|
(* ----------------------- Tests --------------------------- *)
|
|
|
|
open_graph " 1200x800" ;;
|
|
set_window_title "Graphs" ;;
|
|
|
|
let generate_full_graph k =
|
|
let res = Array.make k [||] in
|
|
for i = 0 to k-1 do
|
|
res.(i) <- Array.make (k-1) 0
|
|
done;
|
|
|
|
for x = 0 to k-1 do
|
|
for y = 0 to k-1 do
|
|
if x < y then
|
|
res.(x).(y-1) <- y
|
|
else if x > y then
|
|
res.(x).(y) <- y
|
|
done
|
|
done;
|
|
res ;;
|
|
|
|
let generate_random_graph k freq =
|
|
let res = Array.make k [||] in
|
|
for i = 0 to k-1 do
|
|
res.(i) <- Array.make (k-1) (-1)
|
|
done;
|
|
|
|
for x = 0 to k-1 do
|
|
for y = 0 to k-1 do
|
|
if (Random.int 100) < freq then
|
|
if x < y then
|
|
res.(x).(y-1) <- y
|
|
else if x > y then
|
|
res.(x).(y) <- y
|
|
done
|
|
done;
|
|
res ;;
|
|
|
|
let gr = [|[|3; 5; 7|]; [|0|]; [|1; 7; 8|]; [|2; 6; 9; 10|]; [|0; 1; 3|]; [|6; 7|]; [|0; 1; 2|]; [|8|]; [|0; 7; 6|]; [|10; 11|]; [|3; 5; 7|]; [|0; 9|]|] ;;
|
|
let fulg = generate_full_graph 16 ;;
|
|
let rang = generate_random_graph 9 50 ;;
|
|
|
|
(*improved_pretty_printing gr 1200 800 50*) ;;
|
|
(*improved_pretty_printing fulg 1200 800 25 ;;*)
|
|
improved_pretty_printing rang 1200 800 45 ;;
|
|
|
|
close_graph () ;;
|
|
|
|
(* compilation command : ocamlfind ocamlc -linkpkg -package unix -linkpkg -package graphics graphs.ml *) |