< Previous
Next >
Given an array containing n distinct numbers taken from 0, 1, 2, ..., n
, find the one that is missing from the array.
Example 1:
Input: [3,0,1]
Output: 2
Example 2:
Input: [9,6,4,2,3,5,7,0,1]
Output: 8
Note:
Your algorithm should run in linear runtime complexity. Could you implement it using only constant extra space complexity?
[Bit Manipulation]
[Array]
[Math]
Similar Questions
- First Missing Positive (Hard)
- Single Number (Easy)
- Find the Duplicate Number (Medium)
- Couples Holding Hands (Hard)