goden0808

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Published: Aug 9, 2023 License: GPL-3.0 Imports: 1 Imported by: 0

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面试题 08.08.有重复字符串的排列组合

1. 题目描述

有重复字符串的排列组合。编写一种方法,计算某字符串的所有排列组合。

示例1:

 输入:S = "qqe"
 输出:["eqq","qeq","qqe"]

示例2:

 输入:S = "ab"
 输出:["ab", "ba"]

提示:

  • 字符都是英文字母。
  • 字符串长度在[1, 9]之间。

标签 字符串 回溯

2. 解题

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