10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
25.6k 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 | 25.6k 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:104.23.243.165
©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 | 18.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users