原创 最新推荐文章于 2026-09-08 15:52:16 发布 简介：CodingBat是广受欢迎的在线Java编程练习平台，本资源即为其习题的解答合集，适合初学者和有经验开发者通过实战强化语法基础与算法思维。

Given a string, return the count of the number of times that a substring length 2 appears in the string and also as the last 2 chars of the string, so "hixxxhi" yields 1 (we won't count the end ...

//Given a string, return the count of the number of times that a substring length 2 appears in the string and also as the last 2 chars of the string, so "hixxxhi" yields 1 (we won't count the end ...