Compilare: main.cpp: In function 'int main()': main.cpp:21:21: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 21 | if(dx.size()>u) | ~~~~~~~~~^~ main.cpp:29:20: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 29 | while(dx.size()>=l) | ~~~~~~~~~^~~