Bit Manipulation Interview Questions

No. 20 - Number of 1 in a Binary
Please implement a function to get the number of 1s in an integer. For example, the integer 9 is 1001 in binary, so it returns 2 since there are two bits of 1s.

No. 50 - Numbers Appearing Once
In an array, all numbers appear three times except one which only appears only once. Please find the unique number.

No. 51 - Next Number with Same Set of Digits
Given a number n, please out put all numbers with n bits of 1 in increasing order. For example, if the input is 3, the output are numbers 7, 11, 13, …

3 comments:

  1. Thanks for sharing. This is my collection of question related with bit manipulation. http://www.capacode.com/logic/bit-manipulation-questions/

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  2. Tks very much for your post.

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