10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
20.1k 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 | 20.1k 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:172.69.59.97
©2016-2025

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 | 13.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users