Problems
| Problem |
|---|
| A 张老师的字母密码 1000ms 256MiB Submit |
| B 张老师的中位数价值 1000ms 512MiB Submit |
| C 张老师的淘汰赛 1000ms 512MiB Submit |
| D 张老师的学习计划 1000ms 512MiB Submit |
Submissions
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Contest Clarifications
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