정답 개수:
0
틀린 개수:
10
실행 실패 개수:
0
6 empty back back empty size front
1 -1 -1 1 0 -1
7 pop back empty empty back back push 756
-1 -1 1 1 -1 -1
22 back size pop empty empty pop empty size pop back size pop push 97 empty push 20 front push 883 back back size size push 284
-1 0 -1 1 1 -1 1 0 -1 -1 0 -1 0 97 883 883 3 3