10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
16.4k 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 | 16.4k 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:172.71.255.14
©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 | 11.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users