Problem	foreveralone
User	chatdanai
Submission Time	2026-05-04 23:30:39
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

foreveralone.cpp: In function ‘int main()’:
foreveralone.cpp:22:3: error: ‘s’ was not declared in this scope
22 | s.push(x);
| ^