Compilare: user.cpp: In function ‘void scrieGraf(char*, std::vector<std::pair<int, int> >*)’: user.cpp:83:33: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int j=0;j<A[i].size();++j)if(i!=A[i][j].first)g<<i<<","<<A[i][j].first<<"\n", ^ user.cpp: In function ‘void extractMST()’: user.cpp:97:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Graf[x].size();++i) ^ user.cpp:114:36: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(int i=0;i<Graf[x].size();++i) ^ user.cpp: In function ‘int main()’: user.cpp:126:26: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings] scrieGraf(OUTFILE,MST); ^