Compilare: main.cpp: In function 'int32_t main()': main.cpp:115:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 115 | for(i=0;i<g[pereche.first].size();i++) | ~^~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:121:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 121 | for(i=0;i<g[pereche.second].size();i++) | ~^~~~~~~~~~~~~~~~~~~~~~~~~