Missing Number · Coding Interview Practice

Missing NumberGiven an array of n distinct numbers taken from the range [0, n], return the one number that is missing.Constraints

n == nums.length

1 <= n <= 10^4

All numbers in nums are unique and within [0, n]

Examples

Input: nums = [3,0,1] Output: 2

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

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