Information
- ID
- 520
- Time
- 1000ms
- Memory
- 256MiB
- Difficulty
- 6
- Tags
- (None)
- # Submissions
- 42
- Accepted
- 13
- Uploaded By
不难发现,5是没有用的 因此,只考虑2,3 当n = 0,1 无解 当n > 1,答案为 n / 2(n为偶数:2....2 n为奇数:2....3)
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