Compilare: user.cpp: In function ‘int main()’: user.cpp:31:54: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ((s - DQ.front() >= s && DQ.size() >= k) || (s < 0 && n - i + 1 + DQ.size() >= k)) ^ user.cpp:31:95: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] while ((s - DQ.front() >= s && DQ.size() >= k) || (s < 0 && n - i + 1 + DQ.size() >= k)) ^