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Sort an Array of 0s, 1s and 2s

MediumP1Coding

nums contains only the values 0, 1 and 2. Sort it in place in ascending order, without using a library sort.

Aim for a single pass with constant extra space.

Example 1

Input
nums = [2,0,2,1,1,0]
Output
[0,0,1,1,2,2]

Example 2

Input
nums = [2,0,1]
Output
[0,1,2]

Example 3

Input
nums = [0]
Output
[0]

Constraints

  • 1 <= nums.length <= 10^5
  • nums[i] is 0, 1 or 2.

Hints

Run checks the 3 visible tests, Submit all 8.