44.leetcode题目:268. Missing Number(位操作没想到)
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题目:
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?
我觉得好类似于脑筋急转弯啊,简单,不写了。但是好像可以用位操作,对位操作不熟练。
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