算法heap-阿里云

从小白开始刷算法 Heap 堆篇最小堆排序 leetcode.692

692.前K个高频单词给定一个单词列表 words 和一个整数 k ，返回前 k 个出现次数最多的单词。返回的答案应该按单词出现频率由高到低排序。如果不同的单词有相同出现频率，按字典顺序排序。示例 1：输入: words = [“i”, “love”, “leetcode”, “i”, “lov...

从小白开始刷算法 Heap 堆篇最大堆排序 leetcode.215

215.数组中的第K个最大元素给定整数数组 nums 和整数 k，请返回数组中第 k 个最大的元素。请注意，你需要找的是数组排序后的第 k 个最大的元素，而不是第 k 个不同的元素。你必须设计并实现时间复杂度为 O(n) 的算法解决此问题。示例 1:输入: [3,2,1,5,6,4], k = 2输...

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6.[数据结构和算法分析笔记]堆 Heap

1.堆Heap 定义堆是一颗安全二叉树，其结点含有Comparable的对象。在最大堆中，每个结点的对象都大于等于它的子孙结点中的对象。 1 2 3 4 5 6 7 8 public interface MaxHeapInterface<T extends&nb...

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更新时间 2024-02-23 13:36:49

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