Problem	rollercoaster
User	PyAce
Submission Time	2025-06-20 15:57:08
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

rollercoaster.cpp: In function ‘int main()’:
rollercoaster.cpp:22:8: error: ‘class std::vector<long long int>’ has no member named ‘pop_front’
22 | mvec.pop_front();
| ^~~~~~~~~