Problem	zooqueue
User	gthinh
Submission Time	2026-09-10 19:57:35
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

zooqueue.cpp: In function ‘int main()’:
zooqueue.cpp:26:22: error: ‘x’ was not declared in this scope
26 | st.push_back(x);
| ^