Compilare: user.cpp: In function ‘int main()’: user.cpp:95:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Comp[i].size(); ++ j) ^ user.cpp:96:51: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int k = 0; k < G[Comp[i][j]].size(); ++ k) ^ user.cpp:100:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Comp[i].size(); ++ j) ^ user.cpp:105:41: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < Comp[i].size(); ++ j) ^ user.cpp:127:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < Ans.size(); ++ i) ^