Compilare: main.cpp: In function 'void ciclu(int, int)': main.cpp:37:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 37 | for(int i=0;i<gr[nod].size() && ok==0;i++) | ~^~~~~~~~~~~~~~~ main.cpp: In function 'void dfs(int)': main.cpp:60:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 60 | for(int i=0;i<gr[nod].size();i++) | ~^~~~~~~~~~~~~~~