2026-02-28 00:00:00:03014268710http://paper.people.com.cn/rmrb/pc/content/202602/28/content_30142687.htmlhttp://paper.people.com.cn/rmrb/pad/content/202602/28/content_30142687.html11921 本版责编：纪雅林 管璇悦 翟钦奇
No base class to extend, no abstract methods to implement, no controller to coordinate with — just an object with the right shape.
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let right = n - 1;
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每个月的最后一周，会举办自助餐，孩子们很喜欢这种方式，也会跟家长同步自助餐情况