Compilare: main.cpp: In function 'bool dijkstra()': main.cpp:67:19: warning: variable 'cc' set but not used [-Wunused-but-set-variable] int fm = inf, cc = 0; ^~ main.cpp: In function 'int main()': main.cpp:118:36: warning: ignoring return value of 'FILE* freopen(const char*, const char*, FILE*)', declared with attribute warn_unused_result [-Wunused-result] freopen("fmcm.in", "rt", stdin); ^ main.cpp:119:41: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d", &n, &m, &S, &D); ^ main.cpp:124:48: warning: ignoring return value of 'int scanf(const char*, ...)', declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d", &x, &y, &cap, &ct); ^