Compilare: main.cpp: In function 'void dfs(int)': main.cpp:21:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 21 | for (int i = 0; i <= order[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp:22:25: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 22 | for (int j = 0; j <= order[it].size(); j++) { | ~~^~~~~~~~~~~~~~~~~~~