10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
13k 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 | 13k 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:172.70.130.42
©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 | 8.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users