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how do u find out the number of 1's in the binary
representation of a decimal number without converting it
into binary(i mean without dividing by 2 and finding out
the remainder)? three lines of c code s there it
seems...can anyone help
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Answer Posted / jay
Well bitwise operators are one way to do it. But for
positive integers, I thought up another solution. I think
this could work for int n:
for(int i = 0, int count = 0; i < sizeOf(n) / 8.0; i++){
count += (n - 2^i > 0) ? 1 : 0;
}
Is that what you meant by 3 lines?
| Is This Answer Correct ? | 0 Yes | 1 No |
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