leetcode 217. Contains Duplicate、219. Contains Duplicate II、220. Contains Duplicate、287. Find the Duplicate Number 、442. Find All Duplicates in an Array 、448. Find All Numbers Disappeared in an Array 后面3个题都是限制在1～n的,所有可以不先排序,可以利用巧方法做。最后两个题几乎一模一样。
题目链接:https://leetcode.com/problems/contains-duplicate/ 题目: Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the array, and it should return false if every element is distinct. 思路: 1、先排...
Given an arraynumscontainingn+ 1 integers where each integer is between 1 andn(inclusive), prove that at least one duplicate number must exist. Assume that there is only one duplicate number, find the duplicate one. Note: You must not modify the array (assume the array is read only). Yo...
leetCode 217. Contains Duplicate 数组 217. Contains Duplicate Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the array, and it should return false if every element is distinct. 题目大意: 在数组中...
leetCode 217. Contains Duplicate 数组,217.ContainsDuplicateGivenanarrayofintegers,findifthearraycontainsanyduplicates.Yourfunctionshouldreturntrueifanyvalueappearsatleasttwiceinthearray,anditshouldreturnfa
2019-12-21 19:03 −Description Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive... YuriFLAG 0 141 thymelef++:thymelef 模板报错 the entity name must immediately follow the '&' in the entity reference ...
leetcode 219. Contains Duplicate II Given an array of integers and an integer k, find out whether there are two distinct indices i and j in the array such that nums[i] = nums[j] and the absolute difference between i and j is at most k. ...
Given an array of integers, find if the array contains any duplicates. Your function should return true if any value appears at least twice in the array, and it should return false if every element is distinct. 给定一个整数数组,如果数组里面有任意一个值至少出现两次及以上,则函数返回true,如果...
Given an array of integers, find out whether there are two distinct indices i and j in the array such that the absolute difference between nums[i] and nums[j] i...
给定一个包含n + 1个整数的数组nums,其数字都在[1, n]范围内(包括1和n),可知至少存在一个重复的整数。 假设nums只有一个重复的整数,返回这个重复的数。 你设计的解决方案必须不修改数组nums且只用常量级O(1)的额外空间。 示例1: 输入:nums = [1,3,4,2,2]输出:2 ...