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
- 5 Answers
- 8256 Views
- I also Faced
- E-Mail Answers
Answer Posted / krishna
The above solutions will not work for negative numbers.
if a negative number is right shifted, the most significant bit will become 1. so the number never becomes zero.
The following will work for both +ve and -ve numbers.
#include <stdio.h>
int main(int argc, char *argv[]) {
int count = 0;
int no = 3;
int x = 0x01;
if ( argc > 1) {
no = atoi(argv[1]);
}
while ( x != 0) {
if( no & x ) {
count++;
}
x <<= 1;
}
printf( "number: %d , no.of 1s in it: %d\n", no, count);
return 0;
}
| Is This Answer Correct ? | 1 Yes | 2 No |
Post New Answer View All Answers
hi to every one .. how to view table pool after creating the pooled table? plz help me.. if any knows abt this ..
Do you know what are bitwise shift operators in c programming?
What is 'bus error'?
How can I avoid the abort, retry, fail messages?
What is pointers in c?
explain what are actual arguments?
What are the advantages and disadvantages of c language?
What are the header files used in c language?
What is c language in simple words?
what do you mean by enumeration constant?
Are pointers really faster than arrays?
A variable that is defined in a specified portion of a program but can be used throughout the program a) global variable b) local variable c) character d) none
Which is better oop or procedural?
What are the standard predefined macros?
which of the following is not a character constant a) 'thank you' b) 'enter values of p, n ,r' c) '23.56E-o3' d) all of the above
