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 difference between i and jis at most k. 这个题目在前一个题的基础上有部分改动,对nums[i] = nums[j]出现的范围作出了规定,不是全局的,而是要求|i…

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作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 使用set 使用字典 日期 题目地址:https://leetcode.com/problems/contains-duplicate-ii/description/ 题目描述 Given an array of integers and an integer k, find out whether there are two distinct in…

Given an array of integers, find out whether there are two distinct indices i and j in the array such that the difference between nums[i] and nums[j] is at most t and the difference between i and j is at most k. 这个问题在前一个问题的基础上又对nums[i],nums[j]的关系作了约束…

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. 这个问题比较简单,判断一个数组里的是否有重复出现的数字.代码简单如下: pub…

题目: 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 difference between i and jis at most k. 提示: 此题考察的是对Hash Table的应用.这里给出两种方法,第一种基于unordered_map(Has…

题目: 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 difference between i and j is at most k. 翻译: 给定一个整数数组和一个整数k.找出是否存在下标i,j使得nums[i] = nums[j].同一时候i…

Given an array of integers, find out whether there are two distinct indices i and j in the array such that the difference between nums[i] and nums[j] is at most t and the difference between i and j is at most k. 这个类似前面两篇博客,只不过这里距离小于k的两个数的值小于t就可以满足要求,…

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. 判断数组里面是否有重复的,很简单: class Solution { publ…

 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. Solution 1: s…