remove-duplicates-from-sorted-array.go

package main

func removeDuplicates(nums []int) int {
	if len(nums) == 0 {
		return 0
	}
	p := 1
	for i := 1; i < len(nums); i++ {
		if nums[i] != nums[i-1] {
			nums[p] = nums[i]
			p++
		}
	}
	return p
}