Output: false Constraints: 1 <= nums.length <= 105 -109 <= nums[i] <= 109 0 <= k <= 105 My Solution: fromcollectionsimportCounterclassSolution(object):defcontainsNearbyDuplicate(self, nums, k):""":type nums: List[int] :type k: int :rtype: bool"""ifk ==0:returnFalse counter=...
定义变量d记录重复出现的次数,这里需要注意的是不管是否存在end始终要往前加。 publicbooleancontainsNearbyDuplicate(int[] nums,intk) { Map<Integer,Integer> map=newHashMap<Integer,Integer>();intstart=0,end =0;intd=0;for(inti=0;i<nums.length;i++) {if(map.containsValue(nums[i])) { d++; }...
func containsNearbyDuplicate(nums []int, k int) bool { // 维护每个数最后一次出现的下标 numToLastIndex := make(map[int]int) for i, num := range nums { // 若 num 存在,且 i - j <= k ,则满足题意 if j, exists := numToLastIndex[num]; exists && i - j <= k { return true...
算法2: public boolean containsNearbyDuplicate(int[] nums, int k) { Set<Integer> set = new HashSet<Integer>(); int start = 0, end = 0; for (int i = 0; i < nums.length; i++) { if (!set.contains(nums[i])) { set.add(nums[i]); end++; } else return true; if (end -...
LeetCode-Contains Duplicate II Description: 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....
leetcode 219. Contains Duplicate II 0 / 0 / 创建于 5年前 / brute force # brute force pesudo code find all equal pairs , compare gap with k 组合问题 for i in nums for j=i+1 in nums if nums[i]==nums[j] gap=j-i if gap<=k return true return false //brute force func ...
我的LeetCode代码仓:https://github.com/617076674/LeetCode 原题链接:https://leetcode-cn.com/problems/contains-duplicate-iii/description/ 题目描述: 知识点:二叉搜索树、滑动窗口法 思路:滑动窗口法 在LeetCode219——存在重复元素II的基础上,题目 Leetcode 219. Contains Duplicate II 文章作者:Tyan 博客:...
这道题是之前那道Contains Duplicate 包含重复值的延伸,不同之处在于那道题只要我们判断下数组中是否有重复值,而这道题限制了数组中只许有一组重复的数字,而且他们坐标差不能超过k。那么我们首先需要一个哈希表,来记录每个数字和其坐标的映射,然后我们需要一个变量d来记录第一次出现重复数字的坐标差。由于题目要求...
存在重复元素 II 题目描述:给定一个整数数组和一个整数 k,判断数组中是否存在两个不同的索引 i 和 j,使得 nums [i] = nums [j],并且 i 和 j 的差的 绝对值 至多为 k。示例说明请见LeetCode官网。来源:力扣(LeetCode)链接:https://leetcode-cn.com/problems/contains-duplicate-ii/著作权归领扣...
*@param{number[]}nums*@param{number}k*@return{boolean}*/varcontainsNearbyDuplicate=function(nums,k){constset=newSet();for(leti=0;i<nums.length;i++){// Once repeated elements appear in the sliding window, the requirements are metif(set.has(nums[i])){returntrue}// Every value is adde...