题目

题目要求：去除sort int数组中的重复项。

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 return length = 2, and A is now [1,2].

代码

public class Solution {public int removeDuplicates(int[] A) {if (A.length==0) return 0;int length =A.length;int[] B=new int[length];int index=0;//B指向下一个位数int temp=0;//B已经赋值的位置for(int i=0;i<length;i++){//如果第一项是零的情况{0，0，2}if(A[i]==0 && index==0){B[index]=0;index+=1;}if(A[i]!=B[temp]){B[index]=A[i];temp=index;index+=1;}                      }//给A赋值for(int k=0;k<index;k++){A[k]=B[k];}return index;}
}

代码下载：https://github.com/jimenbian/GarvinLeetCode

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题目

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