看到一个和它非常接近的题目《Find All Duplicates in an Array》。然后就释然了。这两个题目有同样的题干,仅仅是问题稍微不同,解法有类似之处。 预计是由于题号太接近了,会做第一个之后。第二个也非常easy就做对了。 本文主要解析《Find All Numbers Disappeared in an Array》,顺便简单解释一下《Find All ...
Description Given an array of integerswhere1≤ a[i] ≤ n (n = size of array), some elements appear twice and others appear once. Find all the elements of [1, n] inclusive thatdonot appearinthisarray. Could youdoit without extra space andinO(n) runtime? You may assume the returned l...
Given an array of integers, 1 ≤ a[i] ≤n(n= size of array), some elements appear twice and others appear once. Find all the elements that appear twice in this array. Could you do it without extra space and in O(n) runtime? Example: Input: [4,3,2,7,8,2,3,1] Output: [2...
A subarray is a contiguous non-empty sequence of elements within an array. Example 1: Input: nums = [4,2,4]Output: trueExplanation: The subarrays with elements [4,2] and [2,4] have the same sum of 6. Example 2: Input: nums = [1,2,3,4,5]Output: falseExplanation: No two sub...
Find Longest Subarray LCCI You are given an array of strings words and a string chars. A string is good if it can be formed by characters from chars (each character can only be used once). Return the sum of lengths of all good ......
pattern find arrays coding problems sort an array of 0's, 1's and 2's in linear time complexity check for valid sudoku palindromic array largest fibonacci subsequence pairs of songs with total durations divisible by 60 all subarray sum of an array suggesting movie randomly from a list c++ ...
leetcode 719. Find K-th Smallest Pair Distance(找到第k小的距离) Given an integer array, return the k-th smallest distance among all the pairs. The distance of a pair (A, B) is defined as the absolute difference between A and B. Example 1: Input: nums = [1,3,1] k =......
// - [1998. 数组的最大公因数排序](https://leetcode.cn/problems/gcd-sort-of-an-array/) 2429 // // 数组标记/区间合并相关 // - 经典模型是一维区间覆盖染色,通过倒序+并查集解决 // - 顺带补充下二维的情况(非并查集):LC2718 https://leetcode.cn/problems/sum-of-matrix-after-queries/...
leetcode Maximum Subarray Find the contiguous subarray within an array (containing at least one number) which has the largest sum. For example, given the array[−2,1,−3,4,−1,2,1,−5,4], the contiguous subarray[4,−1,2,1]has the largest sum =6....
1. Create an array called best[] and init all its values to Integer.MAX_VALUE. best[i] stores the length of the shortest subarray with sum target that ends at index <= i. 2. Use sliding window + two pointers to find each matching subarray that ends at each index. There should be ...