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7a7d3f2 · Oct 20, 2020

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17.05.Find Longest Subarray

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题目描述

给定一个放有字符和数字的数组,找到最长的子数组,且包含的字符和数字的个数相同。

返回该子数组,若存在多个最长子数组,返回左端点最小的。若不存在这样的数组,返回一个空数组。

示例 1:

输入: ["A","1","B","C","D","2","3","4","E","5","F","G","6","7","H","I","J","K","L","M"]

输出: ["A","1","B","C","D","2","3","4","E","5","F","G","6","7"]

示例 2:

输入: ["A","A"]

输出: []

提示:

  • array.length <= 100000

解法

Python3

Java

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