Compilare: main.cpp: In function 'int DFS(int)': main.cpp:19:15: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for(i=0; i<v[x].size(); i++) ~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:55:42: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] fout<<puncte.size()<<"\n"; for(i=0; i<puncte.size(); i++) fout<<puncte[i]<<' '; fout<<"\n"; ~^~~~~~~~~~~~~~