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LeetCode 1234. Replace the Substring for Balanced String

原题链接在这里:https://leetcode.com/problems/replace-the-substring-for-balanced-string/ 题目: You are given a string containing only 4 kinds of characters 'Q', 'W', 'E' and 'R'. A string is said to be balanced if each of its characters appears n/4 times where…

【leetcode】1234. Replace the Substring for Balanced String

题目如下: You are given a string containing only 4 kinds of characters 'Q', 'W', 'E' and 'R'. A string is said to be balanced if each of its characters appears n/4 times where n is the length of the string. Return the minimum length of the substring that…

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