10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
20.4k 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 | 20.4k 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:172.71.254.192
©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 | 14.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users