Problems
| Problem |
|---|
| A 小 Z 的手套（gloves） 1000ms 256MiB Submit |
| B 小 Z 的字符串（string） 1000ms 512MiB Submit |
| C 一个真实的故事（truth） 1000ms 256MiB Submit |
| D 异或区间（xor） 1000ms 256MiB Submit |
Submissions
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Contest Clarifications
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