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:172.69.130.71
©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 | 14k views
12,783 questions
183,442 answers
172,219 comments
4,824 users