1
var removeDuplicates = function (nums) {
2
  let i = 0;
3
  let count = 0;
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  for (let num of nums) {
5
    num == nums[i - 1] ? count++ : (count = 1);
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    if (i == 0 || (num >= nums[i - 1] && count <= 2)) nums[i++] = num;
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  }
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  return i;
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};