10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
27k 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 | 27k 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:104.23.197.95
©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 | 19.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users