10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
26.1k 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 | 26.1k 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:104.23.243.164
©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 | 18.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users