Compilare: user.cpp: In function ‘void DFP(int)’: user.cpp:17:37: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < G[Node].size(); ++ i) ^ user.cpp: In function ‘void DFM(int)’: user.cpp:27:38: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < GT[Node].size(); ++ i) ^ user.cpp: In function ‘int main()’: user.cpp:58:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i = 0; i < CTC.size(); ++ i) ^ user.cpp:60:40: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j = 0; j < CTC[i].size(); ++ j) ^