Compilare: main.cpp: In function 'int main()': main.cpp:36:28: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while(dq.size()>U) dq.pop_front(); ~~~~~~~~~^~ main.cpp:38:25: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dq.size()>=L&&dq.size()<=U) ~~~~~~~~~^~~ main.cpp:38:39: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if(dq.size()>=L&&dq.size()<=U) ~~~~~~~~~^~~