10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
19.5k 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 | 19.5k 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:172.71.254.192
©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 | 13.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users