Compilare: main.cpp: In function 'int main()': main.cpp:27:62: warning: comparison of integer expressions of different signedness: 'std::deque<int, std::allocator<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 27 | if(ordine.empty() || (!ordine.empty() and ordine.size()<poz)) | ~~~~~~~~~~~~~^~~~ main.cpp:31:30: warning: comparison of integer expressions of different signedness: 'std::deque<int, std::allocator<int> >::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 31 | while(ordine.size()>=poz) | ~~~~~~~~~~~~~^~~~~