题目描述 给定一个数组arr,返回arr的最长无重复元素子数组的长度,无重复指的是所有数字都不相同. 子数组是连续的,比如[1,2,3,4,5]的子数组有[1,2],[2,3,4]等等,但是[1,3,4]不是子数组 #include <bits/stdc++.h> using namespace std; class Solution { public: int maxLength(vector<int> & arr) { int maxlen = 0; set<in…

Given two integer arrays A and B, return the maximum length of an subarray that appears in both arrays. Example 1: Input: A: [1,2,3,2,1] B: [3,2,1,4,7] Output: 3 Explanation: The repeated subarray with maximum length is [3, 2, 1]. Note: 1 <= len(A),…

Given two integer arrays A and B, return the maximum length of an subarray that appears in both arrays. Example 1: Input: A: [1,2,3,2,1] B: [3,2,1,4,7] Output: 3 Explanation: The repeated subarray with maximum length is [3, 2, 1]. Note: 1 <= len(A),…

题目描述 Given a string, find the length of the longest substring without repeating characters. Example 1 Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2 Input: "bbbbb" Output: 1 Expl…

718. 最长重复子数组 718. Maximum Length of Repeated Subarray 题目描述 给定一个含有 n 个正整数的数组和一个正整数 s,找出该数组中满足其和 ≥ s 的长度最小的连续子数组.如果不存在符合条件的连续子数组,返回 0. LeetCode718. Maximum Length of Repeated Subarray 示例: 输入: s = 7, nums = [2,3,1,2,4,3] 输出: 2 解释: 子数组 [4,3] 是该条件下的长度最小的连…

718. 最长重复子数组 给两个整数数组 A 和 B ,返回两个数组中公共的.长度最长的子数组的长度. 示例 1: 输入: A: [1,2,3,2,1] B: [3,2,1,4,7] 输出: 3 解释: 长度最长的公共子数组是 [3, 2, 1]. 说明: 1 <= len(A), len(B) <= 1000 0 <= A[i], B[i] < 100 class Solution { public int findLength(int[] A, int[] B) { int[]…

最长重复子数组有一下性质 A: [1,2,3,2,1] B: [3,2,1,4,7]设横是A竖是B,有规律:若横元和竖元相等,则为1,不等为0 1 2 3 2 13 0 0 1 0 12 0 1 0 1 01 1 0 0 0 14 0 0 0 0 07 0 0 0 0 0 可见最长子数组坐标是(0,2)(1,4)(2,5) 设计dp二维数组,若横元和竖元相等,dp[i][j]=dp[i-1][j-1]有 1 2 3 2 13 0 0 1 0 12 0 1 0 2 01 1 0 0 0 34 0…

Given a string, find the length of the longest substring without repeating characters. For example, the longest substring without repeating letters for "abcabcbb" is "abc", which the length is 3. For "bbbbb" the longest subst…

题目 最长无重复字符的子串给定一个字符串,请找出其中无重复字符的最长子字符串. 例如,在"abcabcbb"中,其无重复字符的最长子字符串是"abc",其长度为 3. 对于,"bbbbb",其无重复字符的最长子字符串为"b",长度为1. 解题 利用HashMap,map中不存在就一直加入,存在的时候,找到相同字符的位置,情况map,更改下标 public class Solution { /** * @param s: a s…

Given a string, find the length of the longest substring without repeating characters. Example 1: Input: "abcabcbb" Output: 3 Explanation: The answer is "abc", with the length of 3. Example 2: Input: "bbbbb" Output: 1 Explana…