10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
23.1k 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 | 23.1k 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:172.70.50.51
©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 | 16.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users