问将十进制转换为二进制的C程序

EN

#include <stdio.h>
#include <string.h>
#include <stdlib.h>

int main()
{
    int decimal;

    // get the decimal from user
    printf("Enter the decimal number: ");
    scanf("%i", &decimal);

    if(decimal == 1)
        printf("The binary equivalent of %i is %i\n", decimal, decimal);
    else
    {
        // considering binary is 64 bits in total
        char bit[64];
        int dividend, remainder, counter;

        // we need decimal value intact so dividend copies it
        dividend = decimal;
        counter = 0;
        do
        {
            remainder = dividend % 2;
            if(remainder != 0)
                bit[counter] = putchar('1');
            else
                bit[counter] = putchar('0');
            // update the dividend and counter
            dividend /= 2;
            ++counter;
            // break if dividend has reached 1
            if(dividend == 1)
                break;
          } while(dividend);

          // print the final result
          printf("The binary equivalent of %i is %s\n", decimal, bit);
    }

  return(0);
}