Leetcode.26.Remove Duplicates from Sorted Array

 1 int removeDuplicates(int* nums, int numsSize) {
 2     if(numsSize==0)return 0;
 3     int per=0,i;
 4     for(i=0;i<numsSize;i++)
 5     {
 6         if(nums[per]!=nums[i])
 7         {
 8             nums[++per] = nums[i];
 9         }
10     }
11     return per+1;
12 }