Compilare: main.cpp: In function 'void dfs(int)': main.cpp:28:20: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 28 | for ( i = 0; i < muchii[nod].size(); i++ ) { | ~~^~~~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:69:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 69 | for ( i = v.size() - 1; i >= v.size() - k && i >= 0; i-- ) | ~~^~~~~~~~~~~~~~~