upding

UID: 8, 注册于 2025-7-25 21:11:59, 最后登录于 2026-1-31 21:26:07, 最后活动于 2026-1-31 22:22:40.

解决了 8 道题目，RP: 267 (No. 23)

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System Test: 4
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KingCoder: 2
客观题: 1
Official: 1
NOI: 1
传统题: 1