Compilare: main.cpp: In function 'std::deque<int> solve_1()': main.cpp:53:20: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] for (int i = 0; i < r.size(); ++i) ~~^~~~~~~~~~ main.cpp:34:6: warning: unused variable 'cnt' [-Wunused-variable] int cnt(0), maxi(0); ^~~ main.cpp:55:1: warning: control reaches end of non-void function [-Wreturn-type] } ^