Compilare: main.cpp: In function 'void dfs(long long int, long long int)': main.cpp:26:14: warning: comparison of integer expressions of different signedness: 'long long int' and 'std::vector<long long int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 26 | for(i=0;i<adj[curr].size();i++) | ~^~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:38:15: warning: unused variable 'k' [-Wunused-variable] 38 | int n,i,j,k,l,d,a,b; | ^ main.cpp:38:17: warning: unused variable 'l' [-Wunused-variable] 38 | int n,i,j,k,l,d,a,b; | ^