Medium
Quiz
#75 Sort Colors
APPROACH
Sort array nums of n items representing red (0), white (1), and blue (2) objects in-place so all reds precede whites, which precede blues. The standard library sort function may not be used.
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]
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What is the optimal approach for this problem?