정답 개수:
0
틀린 개수:
10
실행 실패 개수:
0
9 back push 194 empty push 605 pop push 773 empty push 858 size
-1 194 3
-1 0 194 0 3
11 empty push 130 back back pop push 156 size front push 454 pop empty
130 130 130 1 156
1 130 130 130 1 156 156 0
15 pop pop push 871 front back pop pop back pop empty front front front empty size
-1 -1 871 871 -1 -1 -1 0
-1 -1 871 871 871 -1 -1 -1 1 -1 -1 -1 1 0