Given a sorted array, remove the duplicates in place such that each element appear only once and return the new length. Do not allocate extra space for another array, you must do this in place with constant memory. For example, Given input array A = [1,1,2], Your function should retur...
Follow up for "Remove Duplicates": What if duplicates are allowed at mosttwice? For example, Given sorted arraynums=[1,1,1,2,2,3], Your function should return length =5, with the first five elements ofnumsbeing1,1,2,2and3. It doesn't matter what you leave beyond the new length. ...
19} Reference:http://www.programcreek.com/2013/01/leetcode-remove-duplicates-from-sorted-array-ii-java/
publicclassSolution{publicintremoveDuplicates(int[]A){intcount=0;if(A==null||A.length==0){returncount;}count=1;// 从索引1开始遍历,获得不重复个数for(inti=1;i<A.length;i++){if(A[i]!=A[i-1]){count++;}}intuniqueIndex=1;// 记录已经有了多少个不重复的数字被换到了前面for(inti=1;...
Learn toremove duplicate elements from a List in JavausingCollection.removeIf(),HashSet,LinkedHashSet,and Stream APIs. This table compares the different approaches and their advantages. 1. UsingCollection.removeIf()to Remove Duplicates from OriginalList ...
26. Remove Duplicates from Sorted Array 给定一个有序的数组nums,删除重复内容,使每个元素只出现一次并返回新的长度。 不要为其他数组分配额外空间,您必须通过在O(1)额外内存中就地修改输入数组来实现此目的。 思路:数组有序,重复数组必定相邻! 其它和27是一样的。
题名:Remove Duplicates from Sorted Array 题目链接:https://leetcode.com/problems/remove-duplicates-from-sorted-array/ 问题描述 Given a sorted arraynums, remove the duplicates in-place such that each element appear onlyonceand return the new length. ...
Given an integer array nums sorted in non-decreasing order, remove the duplicates in-place such that each unique element appears only once. The relative order of the elements should be kept the same. Then return the number of unique elements in nums. Consider the number of unique elements of...
Java 8 examples to count the duplicates in a stream and remove the duplicates from the stream. We will use a List to provide Stream of items.
import java.util.stream.Collectors; public class JavaStreamDistinct { public static void main(String[] args) { List<Data> dataList = new ArrayList<>(); dataList.add(new Data(10)); dataList.add(new Data(20)); dataList.add(new Data(10)); ...