Problem	card
User	yqiiiiiii
Submission Time	2025-06-30 07:55:00
Score	0
Max Time	N/A
Max Memory	N/A

Compile Error

card.cpp: In function ‘int main()’:
card.cpp:17:14: error: ‘class std::vector<int>’ has no member named ‘pop_front’
17 | cardstack.pop_front();
| ^~~~~~~~~
card.cpp:21:14: error: ‘class std::vector<int>’ has no member named ‘pop_front’
21 | cardstack.pop_front();
| ^~~~~~~~~
card.cpp:22:14: error: ‘class std::vector<int>’ has no member named ‘pop_front’
22 | cardstack.pop_front();
| ^~~~~~~~~
card.cpp:23:14: error: ‘class std::vector<int>’ has no member named ‘push_front’
23 | cardstack.push_front(x);
| ^~~~~~~~~~