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:172.70.130.43
©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