Compilare: user.cpp: In function ‘void Read()’: user.cpp:21:9: warning: unused variable ‘cnt’ [-Wunused-variable] int cnt; ^ user.cpp: In function ‘void precalcSet()’: user.cpp:62:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=1;j<G[i].size();j++) ^ user.cpp:76:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<G[i].size();j++) ^ user.cpp: In function ‘void Solve()’: user.cpp:118:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Sol.size();i++) ^