Compilare: user.cpp: In function ‘int BF(int, int)’: user.cpp:35:34: warning: overflow in implicit constant conversion [-Woverflow] for(int i=1;i<=N;++i) Dist[i]=INF,U[i]=0,T[i]=0; ^ user.cpp: In function ‘void flow(int, int)’: user.cpp:61:10: warning: overflow in implicit constant conversion [-Woverflow] r=INF; ^ user.cpp: In function ‘void citire()’: user.cpp:19:37: 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:23:41: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d %d %d %d",&i,&j,&c,&z); ^ user.cpp: In function ‘int main()’: user.cpp:72:33: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("fmcm.in","r",stdin); ^ user.cpp:73:35: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("fmcm.out","w",stdout); ^