Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:17:14: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 17 | for(i=0;i<v[nod].size();i++){ | ~^~~~~~~~~~~~~~ main.cpp:15:19: warning: iteration 17 invokes undefined behavior [-Waggressive-loop-optimizations] 15 | dp[i][nod]=dp[i-1][dp[i-1][nod]]; | ~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~ main.cpp:14:14: note: within this loop 14 | for(i=1;i<=18;i++){ | ~^~~~