0476. Number Complement
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https://leetcode.com/problems/number-complement
The complement of an integer is the integer you get when you flip all the 0
's to 1
's and all the 1
's to 0
's in its binary representation.
For example, The integer 5
is "101"
in binary and its complement is "010"
which is the integer 2
.
Given an integer num
, return its complement.
Example 1:
Example 2:
Constraints:
1 <= num < 231
Note: This question is the same as 1009: