10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
16.3k 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 | 16.3k 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:172.71.255.50
©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 | 11.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users