Wednesday, April 20, 2016

LeetCode Q268: Missing Number

Given an array containing n distinct numbers taken from 0, 1, 2, ..., n, find the one that is missing from the array.
For example,
Given nums = [0, 1, 3] return 2.

Note:
Your algorithm should run in linear runtime complexity. Could you implement it using only constant extra space complexity?


Solution:



Round 2 solution:

Round 3 solution:

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