Compilare: user.cpp: In function ‘bool dijkstra()’: user.cpp:42:21: warning: unused variable ‘nodurm’ [-Wunused-variable] int nodurm = *it; ^ user.cpp: In function ‘int main()’: user.cpp:127:14: warning: unused variable ‘ok’ [-Wunused-variable] bool ok = 1; ^ user.cpp:105:36: 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); ^ user.cpp:106:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("fmcm.out", "wt", stdout); ^ user.cpp:108:34: 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); ^ user.cpp:114:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ user.cpp:119:44: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d", &C[x][y], &Cst[x][y]); ^