![](https://img.haomeiwen.com/i1350306/d59d034035561680.png)
![](https://img.haomeiwen.com/i1350306/019b2872669ff0c9.png)
class Solution {
func removeDuplicates(_ nums: inout [Int]) -> Int {
var i = 0;
while i + 1 < nums.count {
if nums[i] == nums[i + 1]{
nums.remove(at: i)
}else{
i += 1
}
}
return nums.count;
}
}
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