#480. 防守战线
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ID: 480
Type: Default
3000ms
512MiB
Tried: 0
Accepted: 0
Difficulty: (None)
Uploaded By:
防守战线
说明
样例
5 3
1 5 6 3 4
2 3 1
1 5 4
3 5 2
11
提示
