10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
30.1k 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 | 30.1k 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:104.23.243.108
©2016-2026

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 | 21.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users