Compilare: main.cpp: In function 'int main()': main.cpp:41:61: warning: comparison of integer expressions of different signedness: 'int' and 'std::stack<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 41 | while (s.size() > 0 && c > s.top() && n - i - 1 >= m - s.size()) | ~~~~~~~~~~^~~~~~~~~~~~~~~ main.cpp:45:27: warning: comparison of integer expressions of different signedness: 'std::stack<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 45 | else if (s.size() < m) | ~~~~~~~~~^~~