10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
25.6k 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 | 25.6k 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:104.23.243.164
©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 | 18.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users