10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
30.1k 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 | 30.1k 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:104.23.197.95
©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 | 21.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users