少年宫周五晚上初级B2B3班小测
推荐按顺序看题。 不会做可以先看后面的题目。 比赛时间：一个半小时，或者下课。
The contest is a flexible time contest. You need to complete the contest within a specified time after you attended.
- Status
- Done
- Rule
- IOI
- Problem
- 6
- Start at
- 2025-6-6 17:30
- End at
- 2025-6-6 20:30
- Duration
- 1.5 hour(s)
- Host
-
liuche
- Partic.
- 30