Compilare: main.cpp: In function 'void dfs(long long int, long long int)': main.cpp:28:22: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for(int i = 0; i < g[u].size(); i++) | ~~^~~~~~~~~~~~~ main.cpp:37:30: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for(int x = 0; x < gcd[j].size(); x++) | ~~^~~~~~~~~~~~~~~