A LeetCode Daily Series — Day 2
Today’s problem is called “Missing Number”
Welcome to day two of my LeetCode adventure! Today’s problem is called “Missing Number” and it asks us to find the only number missing from a given array containing distinct numbers in a specific range.
https://leetcode.com/problems/missing-number/
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Let’s dive in!
Understanding the Problem
We’re given an array nums
containing n
distinct numbers. These numbers fall within a specific range, from 0 to n
. However, one number from this range is missing from the array. Our task is to find that missing number.
For example, if nums = [3, 0, 1]
, n
(the length of the array) is 3. This means the expected range is 0 to 3. Since 2 is missing from the array, that's our answer.