Problem	binarysearch
User	SY
Submission Time	2025-06-19 16:16:30
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

binarysearch.cpp: In function ‘int main()’:
binarysearch.cpp:14:14: error: ‘r’ was not declared in this scope
14 | int l = 0; r = n-1;
| ^