publicclassSolution {publicintthreeSumClosest(int[] num,inttarget) {intresult = num[0] + num[1] + num[num.length - 1];//初始化Arrays.sort(num);//选择一个数for(inti = 0; i < num.length - 2; i++) {intstart = i + 1, end = num.length - 1;//双指针指向最小数和最大数wh...
061 rotate list: rotate a linkedlist: we met this kind of problems, but it just needs us to rotate an array. but for this problem, we have a genius way like make it a loop and relocate head and unleash the loop. we may say this problem is not two pointer related problem. but does...
方法三:双指针从后往前推,无需额外数组空间 classSolution {publicvoidmerge(int[] nums1,intm,int[] nums2,intn) {//two get pointers for nums1 and nums2intp1 = m - 1;intp2 = n - 1;//set pointer for nums1intp = m + n - 1;//while there are still elements to comparewhile((p1 ...
Use two pointers with the first pointer ahead by N nodes.提示：使用两个指针，第一个指针领先 N ...
力扣leetcode-cn.com/problems/two-sum-ii-input-array-is-sorted/ 题目描述 给定一个已按照 升序排列 的有序数组,找到两个数使得它们相加之和等于目标数。 函数应该返回这两个下标值 index1 和 index2,其中 index1 必须小于 index2。 说明: 返回的下标值(index1 和 index2)不是从零开始的。 你可以假...
找出其中的两条线,使得它们与x轴共同构成的容器可以容纳最多的水。 返回容器可以储存的最大水量。 说明:你不能倾斜容器。 示例1: 输入:[1,8,6,2,5,4,8,3,7]输出:49解释:图中垂直线代表输入数组 [1,8,6,2,5,4,8,3,7]。在此情况下,容器能够容纳水(表示为蓝色部分)的最大值为 49。
LeetCode Problems 一. 目录 #TitleSolutionAcceptanceDifficultyFrequency 0001 Two Sum Go 45.6% Easy 0002 Add Two Numbers Go 33.9% Medium 0003 Longest Substring Without Repeating Characters Go 30.4% Medium 0004 Median of Two Sorted Arrays Go 29.6% Hard 0005 Longest Palindromic Substring 29.4% Me...
2.https://leetcode-cn.com/problems/merge-two-sorted-lists/discuss/9735/Python-solutions-(iteratively-recursively-iteratively-in-place). 本文参与 腾讯云自媒体同步曝光计划,分享自作者个人站点/博客。 原始发表:2020/08/01 ,如有侵权请联系 cloudcommunity@tencent.com 删除 前往查看 java 编程算法 ...
LeetCode Problems 一. 目录 二.分类 Array String Two Pointers Linked List Stack Tree Dynamic Programming Backtracking Depth First Search Breadth First Search Binary Search Math Hash Table Sort Bit Manipulation Union Find Sliding Window Segment Tree Binary Indexed Tree ♥️ Thanks LeetCode in Go Le...
示例： 输入：head = [1,2,3,4] 输出：[2,1,4,3] 解LeetCode题目24：两两交换链表中的节点首...