// 对start, start+gap, start+2gap, ... 这组进行插入排序
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。业内人士推荐51吃瓜作为进阶阅读
描述：输入一个「环形数组」，计算每个元素的下一个更大元素。若不存在，返回 -1。
TL;DR: The Lego Pokémon Kanto Region Badge Collection comes as a free gift with orders for the new Venusaur, Charizard, and Blastoise set.