Compilare: main.cpp:12:69: warning: built-in function 'log2' declared as non-function [-Wbuiltin-declaration-mismatch] 12 | int n, k, euler[2 * maxN], depth[maxN], poz_euler[maxN], ind_euler, log2[2 * maxN], c[maxN], root[maxN], sz[maxN]; | ^~~~ main.cpp: In function 'int main()': main.cpp:116:26: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, std::pair<int, int> > >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 116 | for(int j = 0; j < aux.size(); j++) | ~~^~~~~~~~~~~~