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
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...
这道题给了我们一个数组,数组中的数字可能出现一次或两次,让我们找出所有出现两次的数字,由于之前做过一道类似的题目Find the Duplicate Number,所以不是完全无从下手。这类问题的一个重要条件就是1 ≤ a[i] ≤ n (n = size of array),不然很难在O(1)空间和O(n)时间内完成。首先来看一种正负替换的方法...
Find All Duplicates in an Array 题目: 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 442. Find All Duplicates in an Array找出数组中...
442. Find All Duplicates in an ArrayMedium Topics Companies 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 appears twice. You must write an algorithm that ...
LeetCode-442. Find All Duplicates in an Array 文章分类 Given an array of integers, 1 ≤ a[i] ≤n(n= size of array), some elements appeartwiceand others appearonce. Find all the elements that appeartwicein this array. Could you do it without extra space and in O(n) runtime?
建议和leetcode 442. Find All Duplicates in an Array 重复元素查找+很棒O(n)做法 一起学习 代码如下: #include <iostream> #include <vector> #include <map> #include <set> #include <queue> #include <stack> #include <string> #include <climits> ...
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 w......
Find the minimum element. The array may contain duplicates. 【分析】 这一道题是上一道题的拓展延伸:[LeetCode]153.Find Minimum in Rotated LeetCode33.搜索旋转排序数组 题目来源: https://leetcode-cn.com/problems/search-in-rotated-sorted-array/ 题目描述: 代码如下:...
Find All Duplicates in an Array 【原题】 Given an array of integers, 1 ≤ a[i] ≤ n (n = size of array), some elements appear twice and others...Find all the elements that appear twice in this array. 67780 Find All Duplicates in an Array ...