Find the Duplicate Number Given an array nums containing n + 1 integers where each integer is between 1 and n (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 (as...
1classSolution {2publicintfindDuplicate(int[] nums) {3intlen =nums.length;4//因为数字的范围就是从1开始的,所以这里不是0,是15intleft = 1;6intright = len - 1;7while(left <=right) {8//在 Java 里可以这么用,当 left + right 溢出的时候,无符号右移保证结果依然正确9intmid = left + (...
- There is only one duplicate number in the array, but it could be repeated more than once. 代码如下: publicintfindDuplicate(int[] nums) {if(nums.length >1){intslow = nums[0];intfast = nums[nums[0]];//以下为求两个指针第一次相遇的点while(slow != fast){ slow = nums[slow]; f...
这是一个Java程序,用于解决LeetCode题目中的"Find the Duplicate Number"问题。该程序的主要功能是遍历数组,找出重复的数字并返回其索引。 以下是该程序的代码: public class FindDuplicate { public static int findDuplicate(int[] nums) { int n = nums.length; for (int i = 0; i < n - 1; i++)...
There is only one duplicate number in the array, but it could be repeated more than once. 题目标签:Array, Binary Search, Two Pointers 题目给了我们一个nums array, 让我们找到其中的重复数字。因为这一题有4个条件,所以有难度。1. 要求我们不能改动array;2. 只能用O(1)空间;3. 时间要小于O(n^...
In Java 8 Stream, filter withSet.Add()is the fastest algorithm to find duplicate elements, because it loops only one time. Set<T> items =newHashSet<>();returnlist.stream() .filter(n -> !items.add(n)) .collect(Collectors.toSet());Copy ...
287. Find the Duplicate Number 方法0: 方法1: binary search 方法2: Complexity 易错点 Given an array nums containing n + 1 integers where each integer is between 1 and n (inclusive), prove that at least one dupl... 查看原文 python3题解 LeetCode剑指 Offer 64. 求1+2+…+n 287. 寻找...
Finding the duplicate or repeated words in a Java String is a very commoninterview question. We can find all the duplicate words using different methods such asCollectionsandJava 8 Streams. 1. Problem Suppose we have a string with names. We want to count which names appear more than once. ...
AC Java: 1publicclassSolution {2publicintfindDuplicate(int[] nums) {3if(nums ==null|| nums.length == 0){4thrownewIllegalArgumentException("Invalid input array.");5}67//walker and runner can't start at the same point8//or while loop condition walker != runner is never used9//while...
Last update on April 01 2025 10:37:18 (UTC/GMT +8 hours)Write a Java program to find duplicate values in an array of integer values.Pictorial Presentation:Sample Solution:Java Code:// Import the Arrays class from the java.util package. import java.util.Arrays; // Define a class named ...