Missing Number From 1 to N | Dataford Interview Questions

Find the missing number in an array of integers from 1 to N.

Given an array containing N - 1 distinct integers from 1 through N, return the one missing integer. Implement find_missing_number(nums), where nums is a list of integers and the result is an integer.

Constraints

0 <= nums.length <= 10^4
N = nums.length + 1
nums contains N - 1 distinct integers
Each value in nums is in the range 1 through N
Exactly one integer from 1 through N is missing

Function Signature

def find_missing_number(nums):

Your question is Missing Number From 1 to N. Start with the requirements in the Question tab.

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Problem

Find the missing number in an array of integers from 1 to N.

Constraints

0 <= nums.length <= 10^4
N = nums.length + 1
nums contains N - 1 distinct integers
Each value in nums is in the range 1 through N
Exactly one integer from 1 through N is missing

Function Signature

def find_missing_number(nums):

Your question is Missing Number From 1 to N. Start with the requirements in the Question tab.

Run and submit as often as you like. When you're ready, talk me through your approach or go straight to the code.