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