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C program to counter number of 1\'s in an integer number.

mahmoud2506
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2022-05-03
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C program to counter number of 1's in an integer number.

This program will count total number of 1's in an integer number. Here we are counting total number of 1's in an integer number using a User Define Function.

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mahmoud2506
2022-05-03
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Counting number of 1's using C program

/*C program to count number of 1's in a number */
 
#include <stdio.h>
 
int count1s(unsigned int num)
{
    unsigned char i;
    int count=0;
    
    unsigned char totalBits=sizeof(num)*8;
    
 
    for(i=0;i< totalBits;i++)
    {
        if( num & (1<< i) )
            count++;
    }
 
    return count;
}

int main()
{
    unsigned int data=0x58;
    printf("\nTotal number of 1's are : %d\n",count1s(data));
 
    return 0;
}

Output

    Total number of 1's are : 3

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