Problem
A [CSP-J 2025] 拼数 / number
B [CSP-J 2025] 座位 / seat
C [CSP-J 2025] 异或和 / xor
D [CSP-J 2025] 多边形 / polygon

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CSP-J 2025 估分自测【官方数据】

Status: Done
Rule: OI
Problem: 4
Start at: 2025-11-1 15:15
End at: 2025-11-2 11:15
Duration: 20 hour(s)
Host: blackcat
Partic.: 13