---恢复内容开始--- 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. Example 1: Input: nums =…

Description 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. Example 1: Input: [,,,] Out…

Description Given an array of integers that is already sorted in ascending order, find two numbers such that they add up to a specific target number. The function twoSum should return indices of the two numbers such that they add up to the target, wh…

#-*- coding: UTF-8 -*-#遍历所有元素,将元素值当做键.元素下标当做值#存放在一个字典中.遍历的时候,#如果发现重复元素,则比较其下标的差值是否小于k,#如果小于则可直接返回True,否则更新字典中该键的值为新的下标class Solution(object):    def containsNearbyDuplicate(self, nums, k):        """        :type nums: List[int]        :typ…

219. Contains Duplicate II[easy] 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. 错误解法: class Solut…

 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…

Question 219. Contains Duplicate II Solution 题目大意:数组中两个相同元素的坐标之差小于给定的k,返回true,否则返回false 思路:用一个map记录每个数的坐标,如果数相同,如果坐标差小于k则返回true否则覆盖,继续循环 Java实现: public boolean containsNearbyDuplicate(int[] nums, int k) { Map<Integer, Integer> map = new HashMap<&…

每天一算:Contains Duplicate II 描述 给出1个整形数组nums和1个整数k,是否存在索引i和j,使得nums[i] == nums[j] 且i和j之间的差不超过k Example 1: Input: nums = [1,2,3,1], k = 3 Output: true. Example 2: Input: nums = [1,0,1,1], k = 1 Output: true Example 3: Input: nums = [1,2,3,1,2,3], k = 2…

Given an array of integers and an integer k, find out whether there there are two distinct indices i and j in the array such that nums[i] = nums[j] and the difference between iand j is at most k. 方法1:暴力解法 代码如下: public class Solution { public boolean…

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. Example 1: Input: nums = [1,2,3,1], k = 3 Output:…