Compilare: main.cpp: In function 'int main()': main.cpp:111:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 111 | for (int i = 0; i < v[node].size(); ++i) { | ~~^~~~~~~~~~~~~~~~ main.cpp:96:10: warning: variable 'foundN' set but not used [-Wunused-but-set-variable] 96 | bool foundN = false; | ^~~~~~