Compilare: user.cpp: In function ‘void Read()’: user.cpp:13:11: warning: unused variable ‘j’ [-Wunused-variable] int i,j,x; ^ user.cpp: In function ‘bool Cuplaj(int)’: user.cpp:33:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<G[node].size();++i) ^ user.cpp:39:29: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (i=0;i<G[node].size();++i) ^ user.cpp: In function ‘void Read()’: user.cpp:15:34: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("senat.in","r",stdin); ^ user.cpp:17:24: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%d",&n,&m); ^ user.cpp:21:33: warning: ignoring return value of ‘int scanf(const char*, ...)’, declared with attribute warn_unused_result [-Wunused-result] scanf("%d%c",&x,&ch); ^ user.cpp: In function ‘void Write()’: user.cpp:65:36: warning: ignoring return value of ‘FILE* freopen(const char*, const char*, FILE*)’, declared with attribute warn_unused_result [-Wunused-result] freopen("senat.out","w",stdout); ^