Compilare: user.cpp: In function ‘void MCS()’: user.cpp:65:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<G[node].size();j++) ^ user.cpp:54:13: warning: variable ‘ok’ set but not used [-Wunused-but-set-variable] int ok=0; ^ user.cpp: In function ‘void DFS(int)’: user.cpp:134:35: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Cliq[node].size();i++) ^ user.cpp:156:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<G2[node].size();i++) ^ user.cpp:162:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<Cliq[neighb].size();k++) ^ user.cpp:178:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<Cliq[node].size();j++) ^ user.cpp:185:45: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k=0;k<Cliq[neighb].size();k++) ^ user.cpp: In function ‘void DFS2(int, int)’: user.cpp:231:44: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Link[first][second].size();i++) ^