Find if a number is power of two or not?
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Answer / om
int f(int num)
{
if(( num>0) && (!(num & (num-1))) )
return 1;
else
return 0;
}
// f(16)...... 16 & 15 = 10000 & 01111 =00000
f(4) ...... 4 & 3 =0100 & 0111 =0000
f(11).......11 & 10 = 1011 & 1010 = 1010 so not...
f(12).......12 & 11 = 1100 & 1011 = 1000 so not...
| Is This Answer Correct ? | 6 Yes | 0 No |
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