Compilare: main.cpp: In function 'void solve(int, int, int)': main.cpp:52:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<info>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for( int i = 0; i < edges[parent[vf]].size(); i++ ) { | ~~^~~~~~~~~~~~~~~~~~~~~~~~~~ main.cpp:56:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<info>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 56 | for( int i = 0; i < edges[vf].size(); i++ ) { | ~~^~~~~~~~~~~~~~~~~~