026.Remove Duplicates from Sorted Array

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Test cases

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[]
[0, 2]
[2, 2]
[1, 1, 2]
[0, 1, 2]

Solution 1: accepted 13ms

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public int removeDuplicates(int[] nums) {
  int len = nums.length;
  if (nums.length < 2)
    return len;
  int count = 1;      
  for (int i = 1; i < len; i++) {
    if (nums[i - 1] != nums[i]) {
      nums[count] = nums[i];
      count++;
    }
  }
    return count;
}