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以下内容更详细解释来自于:代码随想录 (programmercarl.com)1.回溯算法理论基础回溯法也叫回溯搜索法,是搜索法的一种,我们之前在二叉树中也经常使用到回溯来解决问题,其实有递归就有回溯,有的时候回溯隐藏在递归之下,我们不容易发觉,今天我们来详细介绍一下什么是回溯,它能解决哪些问题.回...

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给定一个整数数组 nums 和一个正整数 k，找出是否有可能把这个数组分成 k 个非空子集，其总和都相等。示例 1：输入： nums = [4, 3, 2, 3, 5, 2, 1], k = 4输出： True说明：有可能将其分成 4 个子集（5），&...

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