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remove-duplicates-from-sorted-array.java

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public class Solution {

/**

* @param A: a array of integers

* @return : return an integer

*/

public int removeDuplicates(int[] nums) {

// write your code here

int len = nums.length;

if (len == 0) {

return 0;

}

int slow = 0;

int fast = 1;

while (fast < len) {

if (nums[fast] != nums[slow]) {

nums[++slow] = nums[fast++];

}else {

fast++;

}

}

return slow + 1;

}

}