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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 |
general for is %wd,f-d; in this system "w" means a) 'w' represent total width of digits b) 'w' represent width which includes the digits before,after decimal place and the decimal point c) 'w' represent width which includes the digits before only d) 'w' represent width after decimal place only
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