Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:30:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 30 | for(int i=0;i<adj[x].size();i++) | ~^~~~~~~~~~~~~~ main.cpp:37:28: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for(int j=i+1;j<adj[x].size();j++) | ~^~~~~~~~~~~~~~