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:162.159.115.32
©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 | 18.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users