Compilare: main.cpp: In function 'int low(int)': main.cpp:16:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 16 | for (int i = 0;i < graph[nod].size();++i) | ~~^~~~~~~~~~~~~~~~~~~ main.cpp:25:1: warning: no return statement in function returning non-void [-Wreturn-type] 25 | } | ^