Compilare: main.cpp: In function 'bool is_ancestor(int, int)': main.cpp:79:75: warning: suggest parentheses around '&&' within '||' [-Wparentheses] 79 | inline bool is_ancestor(int u, int v) { return u == 0 || tin[u] <= tin[v] && tout[v] <= tout[u]; } | ~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'bool go(int)': main.cpp:117:33: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 117 | if(ot == last && sol.size() == 2 * n - 1) return true; | ~~~~~~~~~~~^~~~~~~~~~~~