Problem	airplane2
User	WILLI1071A
Submission Time	2026-02-26 17:36:52
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

airplane2.cpp: In function ‘int main()’:
airplane2.cpp:45:7: error: ‘check’ was not declared in this scope
45 | if (check(mid))low=mid;
| ^~~~~