mp2i-vms.fr
126 lines
3.6 KiB
C
126 lines
3.6 KiB
C
#include <stdio.h>
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#include <stdlib.h>
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#include <assert.h>
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#include <stdbool.h>
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#include <SDL2/SDL.h>
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#include <SDL2/SDL_image.h>
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#include <unistd.h>
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#include <time.h>
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typedef enum topic {NOTHING, MATH, PHYSICS, ENGLISH, FRENCH, INFO} topic;
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// colles subjects
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typedef struct date {int hour; int day; int month; int year;} date;
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// nothing to say here
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typedef struct creneau {date date; int group; char* name; topic mat;} creneau;
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// one créneau de colle
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// /!\ creneau has to be sorted by ascending dates
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typedef struct colleur {char* name; topic mat; date* disp; int n_disp;} colleur;
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// available creneaux for the colleurs
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static int width = 1200;
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static int height = 900;
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int date_dist(date d1, date d2) {
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// returns distance between d1 and d2 in days
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// if d2 is sooner than d1, it will return -1
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if(d2.month == d1.month && d2.year == d1.year) {
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if(d2.day < d1.day) {
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return -1;
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}
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return d2.day - d1.day;
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} else {
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int is_31 = 0;
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if(d1.month == 1 || d1.month == 3 || d1.month == 5 || d1.month == 7 || d1.month == 8 || d1.month == 10 || d1.month == 12) {
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is_31 = 1;
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} else {
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is_31 = (d1.month == 2)*(-2) + (d1.month == 2 && d1.year%4 == 0 && d1.year%100 != 0);
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}
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if(d2.month - d1.month < 0 && d2.year <= d1.year) {
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return -1;
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} else if(d2.month - d1.month == 1 && d2.year == d1.year) {
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return d2.day + (30 + is_31 - d1.day);
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} else {
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date copy;
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copy.day = d1.day;
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copy.month = d1.month;
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copy.year = d1.year;
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copy.month = (copy.month + 1);
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if(copy.month == 13) {
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copy.month = 1;
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copy.year += 1;
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}
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return (30 + is_31 + date_dist(copy, d2));
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}
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}
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}
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bool is_sorted(creneau* edt, int len) {
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for(int i = 1; i < len; i++) {
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if(date_dist(edt[i-1].date, edt[i].date) == -1) {
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printf("Anomaly detected at lane %d (dates are not sorted in ascending order)\n", i);
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return false;
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}
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}
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printf("No problem detected\n");
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return true;
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}
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creneau* import_creneaux(char* filename, int size) {
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// import creneau data from a file
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// see file.txt for an example
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FILE* ptr = fopen(filename, "r");
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char c = fgetc(ptr);
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creneau* edt = malloc(sizeof(creneau)*size);
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int i = 0;
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int to_fill = 0;
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int buffer = 0;
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while(c != EOF && c != '$') {
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if((int)(c) >= 48 && (int)(c) <= 57) {
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buffer *= 10;
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buffer += (int)(c) - 48;
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} else {
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if(to_fill == 0) {
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edt[i].date.hour = buffer;
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edt[i].group = 0;
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edt[i].name = "empty";
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edt[i].mat = NOTHING;
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} else if(to_fill == 1) {
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edt[i].date.day = buffer;
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} else if(to_fill == 2) {
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edt[i].date.month = buffer;
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} else {
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edt[i].date.year = buffer;
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}
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to_fill++;
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buffer = 0;
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if(c == '\n') {
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i++;
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to_fill = 0;
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}
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}
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c = fgetc(ptr);
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}
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fclose(ptr);
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if(!is_sorted(edt, size)) {
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assert(0);
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}
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return edt;
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}
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bool str_equal(char* s1, char* s2) {
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// note : s1 and s2 must be valid strings (aka have (int)(0) at the end)
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if((int)(s1[0]) == 0 || (int)(s2[0]) == 0) {
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return ((int)(s1[0]) == 0 && (int)(s2[0]) == 0);
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} else if(s1[0] != s2[0]) {
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return false;
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}
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return str_equal(&s1[1], &s2[1]);
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} |