Compilare: main.cpp: In function 'void dfs(int, int, int, int)': main.cpp:34:23: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<std::pair<int, int> >::size_type' {aka 'long unsigned int'} [-Wsign-compare] 34 | for (int i = 0; i < graf[nod].size(); i++) | ~~^~~~~~~~~~~~~~~~~~ main.cpp: In function 'int main()': main.cpp:191:36: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 191 | for (int i = sol.size() - p; i < sol.size(); i++) | ~~^~~~~~~~~~~~