Compilare: main.cpp: In function 'void solve()': main.cpp:71:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 71 | for(int i = 0; i < cc[1].size(); i++) | ~~^~~~~~~~~~~~~~ main.cpp:81:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 81 | for(int j = 1; j < cc[i].size(); j++) | ~~^~~~~~~~~~~~~~ main.cpp:89:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 89 | for(int i = 0; i < ans.size(); i++) | ~~^~~~~~~~~~~~ main.cpp:67:9: warning: unused variable 'extra_max' [-Wunused-variable] 67 | int extra_max = 1; | ^~~~~~~~~ main.cpp:68:9: warning: unused variable 'edges' [-Wunused-variable] 68 | int edges = 0; | ^~~~~