10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
29.1k 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 | 29.1k 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:104.23.197.65
©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 | 20.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users