时间复杂度:O(n),空间复杂度:O(n) funcfindDuplicates(nums []int)[]int{len:=len(nums);iflen<=1{returnnil} hashMap :=make(map[int]int) result := []int{}for_, v :=rangenums { _, exist := hashMap[v];if(exist) { result =append(result, v) }else{ hashMap[v] = v } }ret...
输出: [2,3] publicList<Integer> findDuplicates(int[] nums) { List<Integer> list =newArrayList<>(); Arrays.sort(nums);for(inti=1;i<nums.length;i++) {if(nums[i]==nums[i-1]) { list.add(nums[i]); } }returnlist; } publicList<Integer> findDuplicates(int[] nums) { List<Integer...
Can you solve this real interview question? Find All Duplicates in an Array - Given an integer array nums of length n where all the integers of nums are in the range [1, n] and each integer appears at most twice, return an array of all the integers that
[LeetCode]Find All Duplicates in an Array Question 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 ...
请你找出所有在 [1, n] 范围内但没有出现在 nums 中的数字,并以数组的形式返回结果。 示例: 输入:nums = [4,3,2,7,8,2,3,1]输出:[5,6] 分析:这道题让我们找出数组中所有消失的数,跟之前那道Find All Duplicates in an Array极其类似,那道题让找出所有重复的数字,这道题让找不存在的数,这类...
本文主要解析《Find All Numbers Disappeared in an Array》,顺便简单解释一下《Find All Duplicates in an Array》。 该题的含义是:给定一个长度为n的数组,数组元素是1~n。但是有些元素出现一次,有些元素出现两次,从而也会导致有些元素不出现。现在让我们找到哪些元素没有出现。另外一个题目是让我们找到出现两次...
//#442Description: Find All Duplicates in an Array | LeetCode OJ 解法1:数数。 // Solution 1: Count them. 代码1 //Code 1 444 Sequence Reconstruction // #444 序列重建 描述:给你一个序列org,再给你一堆序列seqs。按照seqs每个序列中元素的先后顺序,问是否能重建出唯一一个序列来,而且该序列就是...
给你一个非严格递增排列的数组nums,请你原地删除重复出现的元素,使每个元素只出现一次,返回删除后数组的新长度。元素的相对顺序应该保持一致。然后返回nums中唯一元素的个数。 考虑nums的唯一元素的数量为k,你需要做以下事情确保你的题解可以被通过: 更改数组nums,使nums的前k个元素包含唯一元素,并按照它们最初在num...
【题目】Given a non-empty array containing only positive integers, find if the array can be partitioned into two subsets such that the sum of elements in both subsets is equal. Note: Each of the array element will not exceed 100. The array size will not exceed 200. Example 1: ...
题目:Given a sorted array, remove the duplicates in-place such that each element appears only once and return the new length.Do not allocate extra space for another array, you must do this by modifying the input array in-place with O(1) extra memory.Example: Given nums = [1,1,2], ...