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:104.23.197.65
©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