Problem	bracketex
User	R9q5P8
Submission Time	2025-11-17 14:05:40
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

bracketex.cpp: In function ‘int main()’:
bracketex.cpp:12:2: error: ‘valid’ was not declared in this scope
12 | valid = true;
| ^~~~~