Compilare: main.cpp: In function 'void dfs(int)': main.cpp:12:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 12 | for(int i = 0; i <= adj[v].size(); i++){ | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:52:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 52 | for(j = 0; j < adj[i].size(); j++){ | ~~^~~~~~~~~~~~~~~ main.cpp:67:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 67 | for(i = 0; i < adjnew[v].size(); i++){ | ~~^~~~~~~~~~~~~~~~~~