题目
LeetCode 3527.找到最常见的回答
解释
## 题目描述 给你一个二维字符串数组 responses,其中每个 responses[i] 是一个字符串数组,表示第 i 天调查的回答结果。 请返回在对每个 responses[i] 中的回答 去重 后,所有天数中 最常见 的回答。如果有多个回答出现频率相同,则返回 字典序最小 的那个回答。 ## 示例 **示例 1:** **输入:** responses = [["good","ok","good","ok"],["ok","bad","good","ok","ok"],["good"],["bad"]] **输出:** "good" **解释:** 每个列表去重后,得到 responses = [["good", "ok"], ["ok", "bad", "good"], ["good"], ["bad"]]。 "good" 出现了 3 次,"ok" 出现了 2 次,"bad" 也出现了 2 次。 返回 "good",因为它出现的频率最高。 **示例 2:** **输入:** responses = [["good","ok","good"],["ok","bad"],["bad","notsure"],["great","good"]] **输出:** "bad" **解释:** 每个列表去重后,responses = [["good", "ok"], ["ok", "bad"], ["bad", "notsure"], ["great", "good"]]。 "bad"、"good" 和 "ok" 都出现了 2 次。 返回 "bad",因为它在这些最高频率的词中字典序最小。 ## 约束条件 1 <= responses.length <= 1000 1 <= responses[i].length <= 1000 1 <= responses[i][j].length <= 10 responses[i][j] 仅由小写英文字母组成 ## LeetCode 链接 https://leetcode.cn/problems/find-the-most-common-response/
答案
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