输入:nums = [2,7,11,15], target = 9输出:[0,1]解释:因为 nums[0] + nums[1] == 9 ,返回 [0, 1] 。 示例2: 输入:nums = [3,2,4], target = 6输出:[1,2] 示例3: 输入:nums = [3,3], target = 6输出:[0,1] 提示: ...
input: given an array output: it's to return all the permutations of this array corner: when the array is null or its length is zero Based on the question, we can build asolution tree, where at the root, we haven = arr.lengthchoices, then the second level we haven - 1choices, the...
002 | 目录 Java Algorithm Problems Leetcode#ProblemLevelTagsTimeSpaceLanguageSequence N/A Jump Game II.java Hard [Array, Coordinate DP, DP, Greedy] O(n) O(1) Java 0 N/A Majority Number II.java Medium [Enumeration, Greedy] Java 1 N/A Search a 2D Matrix II.java Medium [Binary Search...
backtrack problems: 0198.house-robber: 0454.4-sum-ii: Top题目进度 Top 100 Liked Questions (54 / 100) Top Interview Questions (82 / 145) 传送门 leetcode 经典题目的解析 这里仅列举具有代表性题目,并不是全部题目 简单难度 0020.Valid Parentheses 0026.remove-duplicates-from-sorted-array 0088....
Given an arraynumsof distinct integers, returnall the possible permutations. You can return the answer in any order. Example 1: Input: nums = [1,2,3] Output: [[1,2,3],[1,3,2],[2,1,3],[2,3,1],[3,1,2],[3,2,1]] ...
题目链接：2731. 移动机器人 - 力扣（LeetCode）2. 解题思路 题目的大致意思是：在一条线上放着多个...
链接:https://leetcode-cn.com/problems/restore-the-array-from-adjacent-pairs 著作权归领扣网络所有。商业转载请联系官方授权,非商业转载请注明出处。 这是一道图论的题。思路还是需要把图建立起来。因为是数组,原则上每个数字都有两个邻居,除了数组的头部和尾部的元素。所以我们的切入点可以从数组的头部/尾部元素...
1574.Shortest-Subarray-to-be-Removed-to-Make-Array-Sorted (H-) 1577.Number-of-Ways-Where-Square-of-Number-Is-Equal-to-Product-of-Two-Numbers (H-) 1580.Put-Boxes-Into-the-Warehouse-II (H-) 1537.Get-the-Maximum-Score (H-) 1687.Delivering-Boxes-from-Storage-to-Ports (H) 1775.Equal-...
739.每日温度 给定一个整数数组temperatures，表示每天的温度，返回一个数组answer，其中answer[i]是指对于...
The Array has a capacity of 10 # Array Length# Create a new array with a capacity of 6.array = [None] *6;# Current length is 0, because it has 0 elements.length =0;# Add 3 items into it.foriinrange(3): array[i] = i * i# Each time we add an element, the lengt...