Compilare: main.cpp: In function 'int main()': main.cpp:19:16: warning: ignoring return value of 'bool std::deque<_Tp, _Alloc>::empty() const [with _Tp = std::pair<int, int>; _Alloc = std::allocator<std::pair<int, int> >]', declared with attribute 'nodiscard' [-Wunused-result] 19 | d.empty(); | ~~~~~~~^~ In file included from /usr/include/c++/12.2.1/deque:64, from /usr/include/c++/12.2.1/x86_64-pc-linux-gnu/bits/stdc++.h:68, from main.cpp:1: /usr/include/c++/12.2.1/bits/stl_deque.h:1347:7: note: declared here 1347 | empty() const _GLIBCXX_NOEXCEPT | ^~~~~ main.cpp:34:15: warning: 'h' may be used uninitialized [-Wmaybe-uninitialized] 34 | fout << dr-h+1 << ' ' << dr << ' ' << Max; | ~~^~ main.cpp:13:39: note: 'h' was declared here 13 | int n,x,Max = -999999999,m,dr = 0,h; | ^