Compilare: main.cpp: In function 'void solve2()': main.cpp:116:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<long long int, long long int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 116 | for(int i = 0; i < sol.size(); i++) { | ~~^~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:138:59: warning: narrowing conversion of 'dist(pct{cx.std::vector<long long int>::operator[](((std::vector<long long int>::size_type)i)), cy.std::vector<long long int>::operator[](((std::vector<long long int>::size_type)i))}, pct{cx.std::vector<long long int>::operator[](((std::vector<long long int>::size_type)j)), cy.std::vector<long long int>::operator[](((std::vector<long long int>::size_type)j))})' from 'long long int' to 'long double' [-Wnarrowing] 138 | edge.push_back({i, j, dist({cx[i], cy[i]}, {cx[j], cy[j]})}); | ~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~