Compilare: main.cpp: In function 'int main()': main.cpp:55:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<edge>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 55 | for(int i = 0;i < edges.size(); ++i) | ~~^~~~~~~~~~~~~~ main.cpp:76:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 76 | for(int j = 0;j < toErase.size(); ++j) | ~~^~~~~~~~~~~~~~~~ main.cpp:83:21: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 83 | for(int i = 0;i < ans.size(); ++i) | ~~^~~~~~~~~~~~