Problem	carpark
User	limzuwan
Submission Time	2023-06-10 12:50:08
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

carpark.cpp: In function ‘int main()’:
carpark.cpp:49:6: error: request for member ‘pop_front’ in ‘x’, which is of non-class type ‘int’
49 | x.pop_front();
| ^~~~~~~~~