Remove Duplicates from Sorted Array

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public class Solution {    public int removeDuplicates(int[] A) {        int newLength = 0;        int dup = 0;        for (int pos = 0; pos<A.length; pos++){            if (A[pos] != dup || pos == 0){                A[newLength] = A[pos];                newLength++;            }            dup = A[pos];        }        return newLength;    }}
                                             
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