10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
19.4k 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 | 19.4k 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:172.70.80.232
©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 | 13.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users