Compilare: main.cpp: In function 'int main()': main.cpp:21:33: warning: comparison of integer expressions of different signedness: 'std::stack<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 21 | if(s.size() + n - i <= m) | ~~~~~~~~~~~~~~~~~^~~~ main.cpp:25:21: warning: comparison of integer expressions of different signedness: 'std::stack<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 25 | if(s.size() < m) | ~~~~~~~~~^~~ main.cpp:13:9: warning: unused variable 'mx' [-Wunused-variable] 13 | int mx = -1; | ^~