Compilare: main.cpp: In function 'void dfs(int, int)': main.cpp:12:21: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 12 | if(nodes.size() <= d) | ~~~~~~~~~~~~~^~~~ main.cpp:23:27: warning: comparison of integer expressions of different signedness: 'std::vector<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 23 | if(howmany.size() <= d) | ~~~~~~~~~~~~~~~^~~~