Problems
| Problem |
|---|
| A 互质划分（coprime） 1000ms 256MiB Submit |
| B 出租车（taxi） 1000ms 256MiB Submit |
| C 木雕玩具（toy） 1000ms 256MiB Submit |
| D 幽默数（humor） 1000ms 256MiB Submit |
Submissions
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Contest Clarifications
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