Problem	lunchbox
User	nzx
Submission Time	2025-08-12 13:40:16
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

lunchbox.cpp: In function ‘int main()’:
lunchbox.cpp:19:6: error: ‘class std::vector<int>’ has no member named ‘pop_front’
19 | vt.pop_front();
| ^~~~~~~~~