26. Remove Duplicates from Sorted Array

26. Remove Duplicates from Sorted Array.swift

class Solution {
    func removeDuplicates(_ nums: inout [Int]) -> Int {
        guard nums.count > 0 else {
            return 0
        }
        
        nums.sort()
        var idx: Int = 0
        while true {
            if idx + 1 == nums.count {
                break
            }
            if nums[idx] == nums[idx+1] {
                nums.remove(at: idx)
            } else {
                idx += 1
            }
        }
        return nums.count
    }
}