Problem	airplane2
User	suzienguyen
Submission Time	2026-02-22 13:25:43
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

airplane2.cpp: In function ‘int main()’:
airplane2.cpp:37:5: error: ‘cin’ was not declared in this scope; did you mean ‘std::cin’?
37 | cin >> h >> w >> k;
| ^~~
| std::cin
In file included from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:75,
from airplane2.cpp:1:
/usr/include/c++/9/iostream:60:18: note: ‘std::cin’ declared here
60 | extern istream cin; /// Linked to standard input
| ^~~
airplane2.cpp:43:2: error: ‘sort’ was not declared in this scope; did you mean ‘std::sort’?
43 | sort(C, C+k);
| ^~~~
| std::sort
In file included from /usr/include/c++/9/algorithm:71,
from /usr/include/x86_64-linux-gnu/c++/9/bits/stdc++.h:65,
from airplane2.cpp:1:
/usr/include/c++/9/pstl/glue_algorithm_defs.h:296:1: note: ‘std::sort’ declared here
296 | sort(_ExecutionPolicy&& __exec, _RandomAccessIt