Compilare: main.cpp: In function 'int existaCiclu(int, double)': main.cpp:45:22: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 45 | for(i = 0; i < adj[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~ main.cpp:57:1: warning: control reaches end of non-void function [-Wreturn-type] 57 | } | ^