Compilare: main.cpp: In function 'int main()': main.cpp:80:34: warning: comparison of integer expressions of different signedness: 'int' and 'std::vector<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 80 | for (int i = ans.size() - 1; i >= ans.size() - p; --i) | ~~^~~~~~~~~~~~~~~~~