Problem	towers
User	kxd
Submission Time	2023-10-23 23:20:40
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

towers.cpp: In function ‘int main()’:
towers.cpp:68:9: error: ‘st’ was not declared in this scope; did you mean ‘std’?
68 | while(!st.empty()) {
| ^~
| std