Problem	bracketex
User	vince
Submission Time	2023-11-09 16:06:43
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

bracketex.cpp: In function ‘int32_t main()’:
bracketex.cpp:16:16: error: lvalue required as left operand of assignment
16 | s1.empty() = true;
| ^~~~
bracketex.cpp:17:16: error: lvalue required as left operand of assignment
17 | s2.empty() = true;
| ^~~~
bracketex.cpp:18:16: error: lvalue required as left operand of assignment
18 | s3.empty() = true;
| ^~~~