Eroare de compilare: main.cpp: In function 'void dfs(int)': main.cpp:63:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 63 | for (int i = 0; i < graf[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:135:13: error: 'cout' was not declared in this scope 135 | cout << "YES" << '\n'; | ^~~~ main.cpp:3:1: note: 'std::cout' is defined in header '<iostream>'; did you forget to '#include <iostream>'? 2 | #include <vector> +++ |+#include <iostream> 3 | Non zero exit status: 1