classSolution {public: vector<int> findDuplicates(vector<int>&nums) { vector<int>res;for(inti =0; i < nums.size(); ++i) {intidx = abs(nums[i]) -1;if(nums[idx] <0) res.push_back(idx +1); nums[idx]= -nums[idx]; }returnres; } }; 下面这种方法是将nums[i]置换到其对应的...
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...
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 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 inthisarray. Could youdoit without extra space and in O(n) runtime?Example: Input: ...
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?
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 每日一题 Daily Challenge 442 Find All Duplicates in an Array 151 -- 1:37 App LeetCode 每日一题 Daily Challenge 389 Find the Difference 143 -- 3:13 App LeetCode 每日一题 Daily Challenge 409 Longest Palindrome 122 -- 2:29 App LeetCode 每日一题 Daily Challenge 70 Climbing Sta...
Time Complexity: O(N) Space Complexity: O(1) Solution Code: publicclassSolution{// when find a number i, flip the number at position i-1 to negative.// if the number at position i-1 is already negative, i is the number that occurs twice.publicList<Integer>findDuplicates(int[]nums){...
The array may contain duplicates. *//* MARK: - 题目翻译: 和Find Minimum in Rotated Sorted Array 题目类似 如果 数组中有重复元素怎么办 这会影响运行的时间复杂度吗 假设一个按升序排序的数组在你事先未知的某个旋转点旋转。 (例如: 0 1 2 4 5 6 7 可能变成 4 5 6 7 0 1 2)。
Find all the elements of [1, n] inclusive that do not appear in this ar... 查看原文 leetcode之Find All Duplicates in an Array 问题 问题描述: Given an array of integers, 1 ≤ a[i] ≤ n (n = size of array),some elements appear twice and others appear once. Find all the...