(http://leetcode.com/2011/01/find-k-th-smallest-element-in-union-of.html) Given two sorted arrays A, B of size m and n respectively. Find the k-th smallest element in the union of A and B. You can assume that there are no duplicate elements. O(lg m + lg n) solution: 1. M...
Faster Union Find方法2:Union Find Based on Quick Union 参考:https://leetcode.com/discuss/69572/easiest-java-solution-with-explanations Quick Union is Faster than Quick Find The idea is simple. To represent a list of islands, we use trees. i.e., a list of roots. This helps us find the...
[LeetCode] Graph Valid Tree [Union Find] Problem Given n nodes labeled from 0 to n - 1 and a list of undirected edges (each edge is a pair of nodes), write a function to check whether these edges make up a valid tree. Example Given n = 5 and edges = [[0, 1], [0, 2], ...
75 BLIND CURATED LEETCODE QUESTIONS: Array Two Sum #1 👯 ❓: Given an array of integers nums & an integer target, return indices of the two numbers such that they add up to target. 🐣: Given nums = [2, 7, 11, 15], target = 9, Because nums[0] + nums[1] = 2 + 7 = ...
[952. 按公因数计算最大组件大小](https://leetcode.cn/problems/largest-component-size-by-common-factor/) [1998. 数组的最大公因数排序](https://leetcode.cn/problems/gcd-sort-of-an-array/) [★ 128. 最长连续序列](https://leetcode.cn/problems/longest-consecutive-sequence/) 6 [1489. 找到最...
关于我的 Leetcode 题目解答,代码前往 Github:https://github.com/chenxiangcyr/leetcode-answers Disjoint Set Union (DSU) 并查集 并查集是一种非常精巧而实用的数据结构,它主要用于处理一些不相交集合的合并问题。 一些常见的用途有: 求连通子图 求最小生成树的 Kruskal 算法 ...