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