Compilare: user.cpp: In function ‘int Bfs()’: user.cpp:45:16: warning: suggest explicit braces to avoid ambiguous ‘else’ [-Wparentheses] if (!t[*it] && c[node][*it]>0) ^ user.cpp: In function ‘void Bf(int)’: user.cpp:84:9: warning: unused variable ‘i’ [-Wunused-variable] int i,node; ^ user.cpp: In function ‘void Read()’: user.cpp:18:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("critice.in","r",stdin); ^ user.cpp:20:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:23:28: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&x,&y); ^ user.cpp:24:29: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d",&c[x][y]); ^ user.cpp: In function ‘void Write()’: user.cpp:109:38: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("critice.out","w",stdout); ^