Compilare: main.cpp: In function 'void dfs(long long int)': main.cpp:22:21: 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] 22 | for( int i = 0; i < v[node].size(); ++i ) { | ~~^~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:48:22: warning: suggest parentheses around assignment used as truth value [-Wparentheses] 48 | viz[i] = dp[i] = 0; | ~~~~~~^~~