10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
13k 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 | 13k 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:172.70.130.42
©2016-2025

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 | 8.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users