10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
30.1k 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 | 30.1k 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:104.23.243.109
©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 | 21.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users