10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
26.8k views

Write a program to convert a decimal number (<256) to binary. Use +-*/% operations only. Loops are not permitted

寫一個把十進位轉換成二進位數的程式。請使用 +-*/% 運算子，不允許使用迴圈。

Example input:

50

Example output:

110010

 

[Exercise] Coding (C) - asked in Chapter 5: Selection Statements by (12.1k points)
ID: 27668 - Available when: Unlimited - Due to: Unlimited
edited by | 26.8k views

119 Answers

0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
  *****  *  *****   *     *   a,b,c,d;
*  * ******    *** * *  *  *****  e,f,g,h;
 ***  **    **     ** **** *  x;
 ****** ***  * **  * ****  *  *** * * ***** **   *** **
    *    *  *  *        ** * * **
   ****  *  * **    * * * *****  **  *  
*     * *  ***          ****    **  
  ***  ***    **    *    * **  * **  * ***
*   * **  *     ** *** *  *** *       *  *  
* ***  ***    ** ** * *** **** *    ***   * 
 *   * * * **  *  *  ** ***  * ***  **   *   *  *
* * * * *      *    *     *  ****  ** *****    **

 *   ***  **  * *** * * (a != 0)
    {
*     ** *  *   ** * ***  ****    *** * *  **      **  ** ***   
    }
  *   *    *    ***  ** * if (b != 0)
    {
**** *    * * * ****** ** * * *  *  ** * *  **    **   *       *
*** ****  ** *  * *** 
**** * **** * ** ** *   *  * ***  *  if (c != 0)
***  **  **    *** * * *** *
** * ***   * ***  **  *****  * *  **     ** **   * ****   ** *
  * ** ** *  **       ** 
  *     **  * * *  *    * ** ***  if (d != 0)
   **  *  * ***  ***** **
* *****    ** ***** * ** * *   ***      ** *    * **    **  *  * *  * * **** * **
*  *     * *  ** * ** **** *   
**    * **  *  * * **** **  *    if (e != 0)
    {
  ***   ***** * * ** *  ** ****   **  * ******  *     *
 *****  * * *  **   **  * *  **
**** * * ** *    ** * **   if (f != 0)
    {
* *   *    * ** *   *   **** * * *  * ** ***
**** ***   * ***   **  ***
   ** * **  *    * * ****      **  if (g != 0)
 ** ****    **   ** *  ** * 
* * **   **  * **  ** *  * *  *  ** * ** ** **
    }

return  0;
}
answered by (-329 points)
0 0
prog.c: In function 'main':
prog.c:5:15: error: variable 'h' set but not used [-Werror=unused-but-set-variable]
     int e,f,g,h;
               ^
cc1: all warnings being treated as errors
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:5:15: error: variable 'h' set but not used [-Werror=unused-but-set-variable]
     int e,f,g,h;
               ^
cc1: all warnings being treated as errors
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
 **  * *    * *  * ***  ***   ** a,b,c,d,e,f,g,h,x;
      ** * ***      *** ****   **** *   ****  **      
*  * *** ** *    *     ***  *  ** *
   *   ** *** **    * ** *** 
   *  ***** *        ** * **    *  ****
*  * * * * *    *     ** **  **    
 ** * **      * * *         **   ** ** *
 ** * **** * *  *** *** **   ** ** **** *
**       *** * ****   *  * ********* *  
  ** **  **  *** **  * * ** **       * **   ** * 

** **  *   *  * ********    * (a != 0)
 *    *  ** * ****  *** 
   *   *   *** **  * *   **       **   *  **** ** ** *  *** **  * **** *
    }
**  * * ** ** **  *   **  * **** if (b != 0)
    {
    *     *  * **     ** ***   ***  ***** **** **  **    * ***   *
** **** * ****   *   **
*  * ** * *   *****  *        if (c != 0)
     **    *  **   *  * * *   
 ** *** * ****  * * ** *  * **   *     * ***  *** *  * *** **
 *** * *    **    ***   
 ***  *  ** *   *    * ** ***    if (d != 0)
    {
*  ** * ** *  *  ** * ***  ******* ** ** ******* * * *    **  *   **     *   **** *** 
* *  * *** ******* *** **
** *   * *** *  *    **   *** if (e != 0)
  ****** *    *** ** * * ***  *
*  *** **    *** ***    *  *****  *  *** *  *  *  ** ***
    }
*** ** ***  *  * *  *    ** **  * if (f != 0)
    {
 *  *   * ** * ** *  * *  *  ** *  **  ** **  ** ** **
    }
 * *** ** * *****  *** * **   if (g != 0)
   *  **    **  * **** ** *
*     ******** ***  ** * *   ****   * *  * 
*****   ***  *      ** ** *** ***

return  0;
}
answered by (-329 points)
0 0
prog.c: In function 'main':
prog.c:4:23: error: variable 'h' set but not used [-Werror=unused-but-set-variable]
     int a,b,c,d,e,f,g,h,x;
                       ^
cc1: all warnings being treated as errors
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:4:23: error: variable 'h' set but not used [-Werror=unused-but-set-variable]
     int a,b,c,d,e,f,g,h,x;
                       ^
cc1: all warnings being treated as errors
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>

int main()
{
* **  ** *  ** *        **   d,sum,sum2,sum3,sum4,sum5,sum6,sum7,sum8;
* ****       * ** **    * *   *** **** **     **    ** *  **  *
 **   *    * * *    **** ** **  ** = d%2;
 * *  *  ***    *    *      * * = (d/2)%2;
* * * ***** *  *** ***** **** = (d/4)%2;
**     *** **** *    * * = (d/8)%2;
* ** *  *** *** ** **     ** * = (d/16)%2;
 ****  ** * ** ** ****** **** * = (d/32)%2;
   **  **  ** ** *      ** *  ****   = (d/64)%2;
**** * ***  *   * *   *    *** = (d/128)%2;
    if (sum7 == 0 && sum8 == 0)
****   ****  ** **    *   * **  *   * ** * **   * ** *** 
*  **  ***  **  *  * ***  * **      *****   ** *** *   *   *   *  **    *  *  * **  *   * **   * * *  **** *** *   * ** * *    **    
 *  ****  * ** *  * * * ***    ** *** ***    * ** *    ****
   *********   * ****   ** * if (sum7 == 1 && sum8 == 0)
****  *  ** ******  * **** *****   ***   ***  *     
        ******* **  * **  *  *      * * **   *   ** ** *  * ******  ******* **       * *    *  *   ******    ******* **  *  **  
 ******** ****  **   ** ***  *  ***  ** * **  *  * **
******* * *  **  ** * *
    * * ** ***** ******** ****  * *    * **** *   **      ** ***  ****   ***      *   * **** * ******* *    * 


  **   ***  *    *   *    *  *  * * 0;
}
answered by (-323 points)
0 0
prog.c: In function 'main':
prog.c:21:20: error: too many arguments for format [-Werror=format-extra-args]
             printf("%d%d%d%d%d%d",sum7,sum6,sum5,sum4,sum3,sum2,sum);
                    ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors
commented by (4.3k points)
0 0
prog.c: In function 'main':
prog.c:21:20: error: too many arguments for format [-Werror=format-extra-args]
             printf("%d%d%d%d%d%d",sum7,sum6,sum5,sum4,sum3,sum2,sum);
                    ^~~~~~~~~~~~~~
cc1: all warnings being treated as errors
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
**    *   ****  * * 
int    
*** **  **  *****
 * *****  *   **     *  * 
 * ** 
    * **
  *  * *  **
 ** * *  * 
   **  ******
*  ***   * ** ***
** ***     ***  **   *
 **   * ** ****** ****

if (a != 0)
{
   * ***   *  ***** ***  **  ** * ** 
}
 ** if (b != 0)
{
 * ********* * *  ** *  *     ****  ** *
}
* if (c != 0)
{
   *  * *** *  ****  ***  * *   *** * 
}
 **  if (d != 0)
{
   *    *  *  *  *   ********* ****  *  * ***   ** *** *
}
 if (e != 0)
{
   ** ** *    *     *****
}
*   if (f != 0)
{
       ****   **  *** * 
}
**  if (g != 0)
{
 *   **  ** *   ** **
}

*  *** *  * *
}
answered by (-329 points)
0 0
prog.c: In function 'main':
prog.c:3:20: error: variable 'h' set but not used [-Werror=unused-but-set-variable]
 {int a,b,c,d,e,f,g,h,x;
                    ^
cc1: all warnings being treated as errors
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
****   ***  ***  *** ** 

 **      
{
    * *      int  * ** *  ** * 

   * * ** *  *     *    *  * *  **  **  *    ** ** 

*  *  * *   * b = a % 2;
  **  *  *******  c = a / 2 % 2;
* *  *       *  **  d = a / 2 / 2 % 2;
* *          ** e = a / 2 / 2 / 2 % 2; 
*      ***  * * f = a / 2 / 2 / 2 / 2 % 2;
**  * *       g = a / 2 / 2 / 2 / 2 / 2 % 2;
**    *  ***   h = a / 2 / 2 / 2 / 2 / 2 / 2 % 2;
 *  *  *   **  ** i = a / 2 / 2 / 2 / 2 / 2 / 2 / 2 % 2;
* **  *  * * * **   j = a / 2 / 2 / 2 / 2 / 2 / 2 / 2 / 2 % 2;

   *      * *    *  *     * **   **
   *****   * *** {
 * **  *   *           *   **  *** **  *  *** ** *  **** *    * ***       
 *  * *   ** *** }
 *   *   *  *** *    ** *       ***  **
** *    * **     {
*       ** ** *  **     * *  *     *******  * *** * *  ******    *   
 * *** * ** *  }
**  ** *   ******  * **** *     *** **** * * * 
** ** *    * *   {
   ** **  *** *****       *  **  *** * *** *   * *** * * * *   
******  * * **  }
      **    * ** *      * ** *** *   *   ***
 ** **      * ** {
* **    * *****     * *    *  * **  ***   ** ******  *    **** * **
  *  ***  **** }
 *  **** **** *  *   * *      *     *** **** 
*  ***     *  {
* * *   ***      **   * * * * ***    ** ** * **   ** **   *****   *
 * * *   *   }
 **    ***  ** *       ***  ** ***  ** ***   * 
  *  * * ****     * {
 * ** *  *****    ** ** ***   *  *   * **** * *  * *
*  *       * *   }
* ***  ****** ** * *     **   *   **** 
* * * *** ** {
    * *  *** **   ** *     * ** *        ** ** ** * *     
    **           * }
   **   * * *   
* * *         {
   * **  *   *  ***  *  **** ** *    ** *****    b);
 * **  ***   }
}
answered by (-285 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
* * *   *  **        

 *  ** 
{
*****  * ** int ****** *** *** 

*** ** *   *  ****  **   *  ****  *  * * **

  * * * ***    b = a % 2;
 *  **    * *  * c = a / 2 % 2;
 * ** * *  * ** *  d = a / 2 / 2 % 2;
**** ** **** e = a / 2 / 2 / 2 % 2; 
    *    **      f = a / 2 / 2 / 2 / 2 % 2;
**      ** **  g = a / 2 / 2 / 2 / 2 / 2 % 2;
 ***  *  **  h = a / 2 / 2 / 2 / 2 / 2 / 2 % 2;
 * ****  *   * ** * i = a / 2 / 2 / 2 / 2 / 2 / 2 / 2 % 2;
* ***      *   j = a / 2 / 2 / 2 / 2 / 2 / 2 / 2 / 2 % 2;

*  **     **    * * ****      *   
*   ** *** * {
**   **  *   **** **** ** **** *   * ***  *  ** *  **  *    *       ** *  * *
******* *****   * }
*   ** **  **  ***  * *  **   *** ** *   ** *
* ** **    * **   {
** **  ** **         *  * ** *   ****        **  * *  **   ** * * * 
**   *   *       }
***    *     *      *  *    *   * *  **
 * *   *  *** *  {
* *    ** * *  *  **   ******   **      **   * *  ****  *** * * * *
 **** *  ***  }
   *  *   ***  ***  **  **** *   *   *      *
 ****  * * * *  {
 *****      *  * * * * * *    *   ** **** **** *  ** ******** * *  *  *  *
**  **   **   * }
 *** ** *** ** else *****    * **  ***     
 *  ** **    {
 *   ****  ** **   **** ** *  *       * * *       * ** *   ***   
* * ** ** **** }
* * * ** *     *    * *  ***  *       *
*** * *  * **** {
   *  * *  * * *    * ***    **** * **  ** * *** * * * *   *
  ** * * *   ** ***  }
*  **** * * ** *  * **** * *       *     *
***   * ** * {
 ** * *    *****  * *** * * *   * *   ***  ** *  ***** * ** ***
*  **    ** *  *   }
* ****   *******   
    **     **** {
    *  * **  **  **   *      **** * **      *  * b);
*  *  *        *** }
}
answered by (-285 points)
0 0
prog.c: In function 'main':
prog.c:23:17: error: stray '\343' in program
  else if(i==0 &&\xe3\x80\x80h!=0)
                 ^
prog.c:23:18: error: stray '\200' in program
  else if(i==0 &&\xe3\x80\x80h!=0)
                  ^
prog.c:23:19: error: stray '\200' in program
  else if(i==0 &&\xe3\x80\x80h!=0)
                   ^
prog.c:43:17: error: stray '\343' in program
  else if(d==0 &&\xe3\x80\x80c!=0)
                 ^
prog.c:43:18: error: stray '\200' in program
  else if(d==0 &&\xe3\x80\x80c!=0)
                  ^
prog.c:43:19: error: stray '\200' in program
  else if(d==0 &&\xe3\x80\x80c!=0)
                   ^
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
 * *  * ** ***** *
int *  
  *   *      * * * 
**   **** **** * * * *    * ** 
 *   
*  **** *
 **  *  
  *  *    **
 *   ** *     *
** **  *  * *  *  
*  ** ** ***  * *  *  
  ****     *   *  * *

if (h == 0)
{
** ** ** **  *  *     **  * ***  ** **  ***
}
   * if (g == 0)
{
* **** *    *      ** ** ** *** **
}
else if (f == 0)
{
  * * ** *  * * * *  *     ** 
}
****  if (e == 0)
 *** ***  * ** *      ***  * *** 
***  if (d == 0)
{
* **  * *  *******   *  *   **   * 
}
**   if (c == 0)
{
 *  * *** *    * ******* **
}
* *  if (b == 0)
{
*** *** *    ***  * *** 
}
*  
{

 *        *  **          ** *  *  * 
}
 **  * * * **
}
answered by (-329 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>
int main()
{
 ** * **    *    ** ***  **  a,b,c,d,e,f,g,h,i,j;
***  *  * ** **** ** * * *****  *   *   ** ***** * **
***** **  ***** *  * *  ** **   * ** 
***** ** ** **** * **  * **  * 
* *      ** *** *  ** *  ** ** ** ** **
 * * *** *  *  * *       *  ** * ** * 
***** ***      *  ****  **  *** *  **  
** *  **** * *    *   **** *  * *    *
 **** * *  *  **  * *  ** * ******   ** * *
** ****  *       *  *   *  *        
   *  *  *  * **   *  **    *    * 
*  **  ** *  * **  * **** *   **    
    {
       *** * **** *   *       * **  * ******    * *   ** ** * * **  * *  ** *** * * *****   
    }
********  **** **   **** *** * **  if(i==0)
    {
**  ****     * *  * **  *  *** * * *  **** *  * * *  *    * *  * **   * ***  *   * *     ** *** 
    }
   * ****  **  * ** * ***  * ** if(h==0)
*    **  * * *** **** * *  
   * *   ** *  ***  *** *  * *   *   * **  * **  * *   ** ****** *** * **   **  *** * **   
    }
   *********    * ** *  ***** if(g==0)
    {
**      **** ** *** * **  **     ****  **  *   ** ***  *   ** * ** **   ** ****     
 *   *    * *    **   ***
 *    * * *  **** *   * ** ***** if(f==0)
  *    ** * *  **   ** **  *
  *  *    * *       **   * * * ** *     *** ** * * **       **** ******  * ** **    * 
  *  *  *     ***    **** 
*   ***      **    *  ***   ** if(e==0)
 ****       *   * *** *  **   
 ** **  * *   *  ****     **   ** ****  ** * ** **   * *  ** **** **** * * *
    }
*  *   *    ****** ** *   if(d==0)
****  ** *****  ****      **
* ****   **   ***       *** ** *   *  **   **      *** * *  **   * *** *  * * *
    }
 *   *  **** * * *   **** **  
 *   * **  * *  * **  ** * 
  **** * * *** ******* *** ** *** **  *   *   *     **********   *** ******     **  *   * *
    }

*   ****   *  * *  * **** * *   0;
}
answered by (-498 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 0
-----------Re-judge-----------
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike
Hidden content!
#include <stdio.h>

int main()

{
** *** * * * * * ***** input,a,b,c,d,e,f,g,h;
* *** ** ** *** * ** *** ** *
* * ** ***** * * * * **** * ***** **
* ** * ***** * ** * * (input!=0)

    {
****** ** **** * ** * * * * * ** ****** = input%2;
* ** * * ** * ** ***** ** ** ** * * * = input/2;

    }
*** ***** * * ** * * *

    {
***** ** * ********* ** * ** * ** * ** = input%2;
* ******** ** * ***** ** * ** ** * * * *** *** = input/2;

    }
*** * ***** ** *** * ** * * * *** ****

    {
* * * * ** ** * * * * * * * * * * = input%2;
** * * *** * ** ** ** ** * **** *** * ** * ** = input/2;
* ** **** *** *** * * **
* ** * ** * ** * * ** * *
* * *** ***** ***** **
** * **** * * ***** ********* * * ** * = input%2;
* * * ** * * ** * * **** * ** ** ****** = input/2;
* * * * * ** ** *
** * *** ** ** * ***
* *** * ** * * * **
** * * * * * ** * * ** * * ** * * * *** * = input%2;
** * * * * * ** * ** **** ** * ** ** ** * * = input/2;
** * * * ** ** * ** * **
*** * ** *** * * ** **** *** * **** * *
** * ** **** ** * *
* *** * **** * * * * *** * * * *** * = input%2;
** ** ** * ** ** * * **** * * * ** = input/2;
** ** * * * * ** *
* ** * *** * * ** ** * * ** **
* * * * * * ** ** * **** * *
* * * **** * * ** * ** ** * * **** ** = input%2;
**** * * * * *** * * *** ** * * * *** ****** ** = input/2;
*** * * ** ** ******
* * **** ** * *** * * * *

    {
*** **** * * *** ** * **** *** ** * * ** = input%2;

    }




* ** * **** ** * ** **** *** ** *** * * *** * ******* ** ** **********


****** **** ** * * *** 0;

}
answered by (-281 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike
Hidden content!
* * * ** **


*

{
***** * * *** int * * **** * *


* * * * * ** * *** ** ** **** * *


****** ** * b = a % 2;
** ** * c = a / 2 % 2;
* ** * *** ** *** d = a / 2 / 2 % 2;
** * * e = a / 2 / 2 / 2 % 2;

* * ****** f = a / 2 / 2 / 2 / 2 % 2;
** ** * *** g = a / 2 / 2 / 2 / 2 / 2 % 2;
* * * h = a / 2 / 2 / 2 / 2 / 2 / 2 % 2;
* ** i = a / 2 / 2 / 2 / 2 / 2 / 2 / 2 % 2;
* ** * *** j = a / 2 / 2 / 2 / 2 / 2 / 2 / 2 / 2 % 2;


* *** * * * * **
* **** * * * {
** * *** * ** ** *** ** * * * *** * * ** ** ****
**** ***** }
* * * **** * ** ** **** *
**** * ** {
* * ** ** * * * ** ** * * * * ** **** * * * *
* * ** }
* * *** * * **** ** * * * * **** ** *
** * ** {
* ** * ** ** * * * * * ****** * ** * * * ** *
** *** ** * * }
** * * ** * * * ****** * *
****** * ** ** {
* * ** * ** *** * * * * * * * * *** *** * ** *
* *** *** }
****** * * else * *** * * *
*** ** **** {
* * ** * * ** ** * *** * ** * ** * ** **
** * **** }
***** * * * * * ***** * * * **
*** **** ** {
* * * * ****** * * ** * * * * ** * ** * *
* *** ** * }
* ** * * * ** * * ** * * **
** * * * {
*** ** ** ** * * ** * ** * ** * ** ** ****
* ** * * ** }
**** ** * *
* ** * ** *** {
* * **** ***** * * *** * ** ***** * b);
* ** ** * }

}
answered by (-285 points)
0 0
prog.c: In function 'main':
prog.c:23:17: error: stray '\343' in program
  else if(i==0 &&\xe3\x80\x80h!=0)
                 ^
prog.c:23:18: error: stray '\200' in program
  else if(i==0 &&\xe3\x80\x80h!=0)
                  ^
prog.c:23:19: error: stray '\200' in program
  else if(i==0 &&\xe3\x80\x80h!=0)
                   ^
prog.c:43:17: error: stray '\343' in program
  else if(d==0 &&\xe3\x80\x80c!=0)
                 ^
prog.c:43:18: error: stray '\200' in program
  else if(d==0 &&\xe3\x80\x80c!=0)
                  ^
prog.c:43:19: error: stray '\200' in program
  else if(d==0 &&\xe3\x80\x80c!=0)
                   ^
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.243.108
©2016-2026

Related questions

2 like 0 dislike
77 answers
10-19 Exercise 1: International Standard Book Number (ISBN)
[Exercise] Coding (C) - asked Oct 19, 2017 in Chapter 5: Selection Statements by thopd (12.1k points)
ID: 27667 - Available when: Unlimited - Due to: Unlimited | 19k views
12,783 questions
183,442 answers
172,219 comments
4,824 users