Compilare: main.cpp: In function 'int main()': main.cpp:23:23: warning: comparison of integer expressions of different signedness: 'std::deque<int>::size_type' {aka 'long unsigned int'} and 'int' [-Wsign-compare] 23 | if (dq.size() == k) { | ~~~~~~~~~~^~~~ main.cpp:25:31: warning: comparison of integer expressions of different signedness: 'int' and 'std::deque<int>::size_type' {aka 'long unsigned int'} [-Wsign-compare] 25 | for (int j = 1; j < dq.size(); j++) { | ~~^~~~~~~~~~~