leetcode-1973-Count Nodes Equal to Sum of Descendants - Recursion 1 -- 10:00 App leetcode-852. Peak Index in a Mountain Array -binary-search 84 -- 18:47 App leetcode-222-Counter Complete Binary Tree Nodes - binary search 27 -- 9:42 App leetcode-2785. Sort Vowels in a String -...
另一种比较聪明,就是像这位大佬一样:https://leetcode.com/problems/find-n-unique-integers-sum-up-to-zero/discuss/465585/JavaC%2B%2BPython-Find-the-Rule 找到规则: A[i] = i * 2 - n + 1 , A[]就是指Output的这个array,举个例子就说,n=3,你的结果可以是 [-2,-1,0,1,2],那这个规则...
LeetCode——162. Find Peak Element 一.题目链接:https://leetcode.com/problems/find-peak-element/二.题目大意:给定一个长度为N的一维数组,数组是无序的,要求找到数组中的极大值(或局部最大值),并返回该极大值的下标,并假设 nums[-1] = nums[n] = -∞.;当某元素同时大于它两边的元素时,则该元素...
Given the sorted rotated arraynumsofuniqueelements, returnthe minimum element of this array. You must write an algorithm that runs inO(log n) time. Example 1: Input: nums = [3,4,5,1,2] Output: 1 Explanation: The original array was [1,2,3,4,5] rotated 3 times. Example 2: Input...
2, -2...0即可。 classFindNUniqueIntegersSumUpToZero{funsumZero(n:Int):IntArray{varsum=0valresult=IntArray(n){0}for(indexinresult.indices){if(index==result.lastIndex&∑==0){result[index]=0}elseif(sum!=0){result[index]=-sum
1304. Find N Unique Integers Sum up to Zero # 题目 # Given an integer n, return any array containing n unique integers such that they add up to 0. Example 1: Input: n = 5 Output: [-7,-1,1,3,4] Explanation: These arrays also are accepted [-5,-1,1,2,3] ,
1304 Find N Unique Integers Sum up to Zero 和为零的N个唯一整数 Description: Given an integer n, return any array containing n unique integers such that they add up to 0. Example: Example 1: Input: n = 5 Output: [-7,-1,1,3,4] ...
0387-First-Unique-Character-In-String 0394-Decode-String 0407-Trapping-Rain-Water-II 0445-Add-Two-Numbers-II 0447-Number-of-Boomerangs 0454-4Sum-II 0461-hamming-distance 0477-total-hamming-distance 0530-minimum-absolute-difference-in-bst 0540-Single-Element-in-a-Sorted-Array 0642...
这次有点快,有点不可思议,主要是看这个数据是奇数项还是偶数项; Runtime:0 ms, faster than100.00%of Java online submissions for Find N Unique Integers Sum up to Zero. Memory Usage:42.8 MB, less than6.64%of Java online submissions for Find N Unique Integers Sum up to Zero. ...
LeetCode 关于回溯问题的看法 回溯算法( BackTrack )在算法过程中就是类似于枚举算法,尝试在搜索过程中找到问题的解。 使用回溯算法解题的一般步骤 使用回溯算法解题的一般步骤: 针对所给问题得出一般的解空间 用回溯搜索方法搜索解空间 使用深度优先去搜索所有解并包含适当的剪枝操作...