Compilare: main.cpp: In function 'void dfs(int)': main.cpp:26:18: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(int i=0;i<v[nod].size();i++) | ~^~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:55:8: warning: 'rad' may be used uninitialized [-Wmaybe-uninitialized] 55 | dfs(rad); | ~~~^~~~~ main.cpp:35:17: note: 'rad' was declared here 35 | int n,i,x,y,rad; | ^~~