Compilare: main.cpp: In function 'int main()': main.cpp:127:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 127 | for(int i=0; i<ghizi.size();i++) | ~^~~~~~~~~~~~~ main.cpp:139:19: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 139 | for(int i=0; i<sol.size();i++) | ~^~~~~~~~~~~