给你一个整数 n，表示图中的节点数量，这些节点按从 0 到 n - 1 编号。 同时给你一个长度为 n 的整数数组 nums，以及一个整数 maxDiff。 如果满足 |nums[i] - nums[j]| <= maxDiff（即 nums[i] 和 nums[j] 的 绝对差 至多为 maxDiff），则节点 i 和节点 j 之间存在一条 无向边 。 此外，给你一个二维整数数组 queries。对于每个 queries[i] = [ui, vi]，找到节点 ui 和节点 vi 之间的 最短距离 。如果两节点之间不存在路径，则返回…

You are given an integer n representing the number of nodes in a graph, labeled from 0 to n - 1. You are also given an integer array nums of length n and an integer maxDiff. An undirected edge exists between nodes i and j if the absolute difference between…

给你一个长度为 n 的整数数组 nums。

You are given an integer array nums of length n. Construct an array prefixGcd where for each index i:

给你两个字符串 word1 和 word2 。 如果一个字符串 x 修改 至多 一个字符会变成 y ，那么我们称它与 y 几乎相等 。 如果一个下标序列 seq 满足以下条件，我们称它是 合法的 ：

You are given two strings word1 and word2. A string x is called almost equal to y if you can change at most one character in x to make it identical to y. A sequence of indices seq is called valid if:

给你两个长度均为 n 的字符串 s 和目标字符串 target，它们都由小写英文字母组成。

You are given two strings s and target, each of length n, consisting of lowercase English letters. Return the lexicographically smallest string that is both a palindromic permutation of s and strictly greater than target. If no such permutation exists, return…

给你一个字符串 s 和一个 正 整数 k 。 从字符串 s 中选出一组满足下述条件且 不重叠 的子字符串：

You are given a string s and a positive integer k. Select a set of non-overlapping substrings from the string s that satisfy the following conditions: