All files / leetCode 0026.ts

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export default function removeDuplicates(nums: number[]): number {
  let pos = 0
 
  if (nums.length === 0)
    return pos
 
  for (let i = 1; i < nums.length; i++) {
    if (nums[pos] !== nums[i])
      nums[++pos] = nums[i]
  }
 
  return pos + 1
}