Reference:http://www.programcreek.com/2013/01/leetcode-remove-duplicates-from-sorted-array-ii-java/
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...
publicclassSolution {publicintremoveDuplicates(int[] nums) {intlen =nums.length;if( len < 2)returnlen;intflag = nums[0];inttimes = 1;intres =len;for(inti = 1 , j = 1;i<len;i++){if( flag ==nums[i] ){if( times == 1) times++;else{ res--;continue; } }else{ flag=nums[i...
Given a sorted array nums, 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 by modifying the input array in-place with O(1) extra memory. Example 1: Given nums = [1,1,2...
英文网址:26. Remove Duplicates from Sorted Array。 中文网址:26. 删除排序数组中的重复项。 思路分析 求解关键:简单来说,得记录一下当前遍历的元素之前的那个元素,用作比较。 参考解答 参考解答1 import java.util.Arrays; // 常规题目:这里利用到数组的有序性,如果遇到和上一个一样的元素,就什么都不做 ...
Map<Integer,Long>map=newHashMap<>();for(inti:numArray){if(map.containsKey(i)){//this element is in the map alreadymap.put(i,map.get(i)+1);}else{//found a new elementmap.put(i,1L);}} Now we can use theMapkeys and values to count duplicates, and even collect the duplicate and...
1. UsingCollection.removeIf()to Remove Duplicates from OriginalList TheremoveIf()method removes all of the elements of this collection that satisfy a specifiedPredicate. Each matching element is removed usingIterator.remove(). If the collection’s iterator does not support removal, then anUnsupportedOp...
Write a Java program to count the frequency of each character in a string and then output the string with duplicates removed. Write a Java program to remove duplicate letters from a string while preserving the order of their first appearance. ...
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)); dataList.add(new Data(20)); ...
从有序链表中删除重复的数字,并且返回删除后的头结点 例如输入链表为1->1->2,返回1->2 这题和leetcode26相似,只是数据结构从数组变成了链表 /** * @author rale * * Given a sorted linked list, delete all duplicates such that each element appear only once. ...