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:104.23.243.165
©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 | 18.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users