Compilare: main.cpp: In function 'int main()': main.cpp:50:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 50 | for(int h=0;h<l[v[i].x].size();++h) | ~^~~~~~~~~~~~~~~~~ main.cpp:58:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 58 | for(int h=0;h<c[v[i].y].size();++h) | ~^~~~~~~~~~~~~~~~~