10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
26.3k 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 | 26.3k 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:162.159.115.9
©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 | 18.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users