10-19 Exercise 2: Convert decimal to binary number

Question

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

 

Answer 1

Hidden content!
**** *** ** * * *

int main()

{

int *** *


*** * * ** ** ** *** * * * *

b=a%2;
*
* **
** ***
* * * *
** * * *
** ** **** **** * *** * * *
****** 0;



}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output

Answer 2

Hidden content!
** * * *** ** **

int main()

{

int ** ** *


* * ** * * *****

b=a%2;
* * * *
* ** *
* **** **
** *
* * *
** ** * * * *** * ******* * *
*** * 0;



}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output

Answer 3

Hidden content!
** ***

int main()

{

int * ****


***** * **** * * **

b=a%2;
* *
**** * **
** **
* * **
* * * ** * *
** ** * ** ** * * * *
***** 0;



}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output

Answer 4

Hidden content!
* *** *****

int main()

{

int * ****


***** ** * * * **

b=a%2;
* * *
*
**
* ****
* ** **
****** ** ** ******** ***** * *
* 0;



}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output

Answer 5

Hidden content!
* ** * * * * ** *

int main()

{

int *** *


** * ** * *** * *** ** ***

b=a%2;
* *
**** *
* ***
**** ** *
* * *
** **** ** * * ** ** *** **
*** 0;



}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output

Answer 6

Hidden content!
* ** * *** * *******

int main()

{

int ****** * **


* * **** ** ** * * * * **

b=a%2;
* ***
** ***
* * * **
* * * * *
** *
* * *** ** *** *** * * *
*** * 0;



}

Comments

Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output

Answer 7

Hidden content!
#include <stdio.h>



int main()



{
** ******* ***** * ** * n,a=0,b=0,c=0,d=0,e=0,f=0,g=0,h=0;
* * * * ** * * * * * * ** ** ** ******


**** * * * ***** * * * (n!=0)
*** * * * *** * *** ** * * * *** ** * * *** *
* ** ** ** ** * ***** ** * * *** * * * ***
** ** * ***** * *** (n!=0)
****** **** ** ** * * * ** * * * * * * ** *** * *
* **** *** *** ** * * * ***** * * * *** *

    if (n!=0)
** ** ** * * ** ** ** ** * * * * * * ** *
**** ** ****** * ** *** ** * *** * * * ***** *
**** * *** ***** ** (n!=0)
** * * * ** * **** * * ** **** ** * * * *
*** ** *** ** * * ** * * * * * **
* ** * * ******* **** (n!=0)
** ** * ***** ** ***** * ** ** * **** * ***
*** * ** * ** * * * *** ** * ** * ** * **
* ** ** * * * * * * ** * (n!=0)
* * ** *** * * ****** * * * ** ** ** **
** *** * ***** * * * ** ** * * *** ** ****
* **** *** **** ****** * ** (n!=0)
* ** ** * ** * *** * *** ***** * ** * *****
* ** * * ** * * ** ** * *** ** *** * * * **
** * * * * * ** (n!=0)
* ** ** ** * * * * * * *** * ** ***** * ** **
* * * * *** **** (h)
* ** ** * * * **** ***** * ** * ** * * * *
** ********** * ****** * (g)
*** * * *** ** ** ** *** * * * ** ** ** (h==0)
** ** * * ** *** ******** * ** ****** * * * * *
*** * * * * * * ** (f)
** ** * * * * * * * * * **** * * * (h==0 && g==0)
** * * *** ****** * *** * ****** ** * * * ******* *
*** * * * ** *** * * ** (e)
********* * * *** ** ***** * * ** ** (h==0 && g==0 && f==0)
** * ** ** * *** * * * ** * * * * * * * * *
* **** *** * ** * **** (d)
**** * * ***** ** *** ** *** * ** ** *** (h==0 && g==0 && f==0 && e==0)
* *** * * * * * *** * * * **** *** * *** * * *
*** ** * ******* ** ** (c)
* ** ****** * ** ** * ***** *** **** ** (h==0 && g==0 && f==0 && e==0 && d==0)
* ** ***** *** * ** *********** ****
* *** *** * * **** ** * * (b)
* * * * ** ** **** * **** * **** ** ** * * (h==0 && g==0 && f==0 && e==0 && d==0 && c==0)
* *** ** * *** *** * ** ********** ** *** *
** **** ** * ** * (a)
** *** ******* * * * * ** * * * ***** (h==0 && g==0 && f==0 && e==0 && d==0 && c==0 && b==0)
** **** *** ** ** ** * * * * ** *


** *** ** * * * * ******** ** 0;





}

Comments

prog.c: In function 'main':
prog.c:9:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:11:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:12:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:14:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:15:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:17:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:18:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:20:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:21:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:23:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:24:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:26:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:27:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:29:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
cc1: all warnings being treated as errors

Answer 8

Hidden content!
#include <stdio.h>



int main()



{
** * **** * * *** * ** * * * n,a=0,b=0,c=0,d=0,e=0,f=0,g=0,h=0;
** * *** ****** ** ** ** * * ***** *** * ***


***** ** *** ** * * (n!=0)
* * * * ** ****** ** **** *** *** * * * * * *
* ** * ** ** * * **** * ** ** *** * * ** *
* * * * * * * (n!=0)
* * * * ******* * ***** * ** *** *** * ** * ** *
* * ** * ** ** ** ** **** **** * ********

    if (n!=0)
******* **** *** * * ** ** * **** *** * *
* * **** ***** ** * **** * * * *** ** **
* ** ** ** * *** * (n!=0)
* * **** * * ***** * * * ****** * ** * *
*** *** * * * ** ** * ** ** * * *** ** * *
* ** * * ***** ** * (n!=0)
***** * ************ * *** *** *** ** * * * *
** ******* ***** * *** ** ** ** **** ** * * * * * *
* ****** *** ** * (n!=0)
** * * *** * * * * *** **** * ** ****
* ** *** * ** * * * * *** * * **** **** *
** ****** * *** ** * *** (n!=0)
* * *** *** * * ** * *** * *** * * **** * *
* * * ****** ** * * * *** ** ****** * **** ***
* ****** * ** * ** ** ** (n!=0)
** *** * * *** ** ** *** * ** *** ****** *** **
** *** ** ****** * ** * * (h)
** *** * ** ** * ***** * * **** *** ** * *
*** ****** * ** * * ****** (g)
* * ** ** **** * * * *** * * ***** * **** (h==0)
**** **** *** * * * * ** * * ****** ** *
**** * * ** * *** **** * (f)
* ** ** * ** ** ** * * ** * * * (h==0 && g==0)
* * * ***** * *** * ** ** ** * * ** *** * * *** **
* ** ** ****** * ** * (e)
** ** * * ** ** * ** ** * * ** *** * (h==0 && g==0 && f==0)
** * * * * ****** *** **** * ** ** *** ** * *
* * ** * * ** * (d)
** ** ***** *** *** *** *** ** * * *** * ** * * * (h==0 && g==0 && f==0 && e==0)
** ** ** **** *** ***** ** *** * * *** ** * ** *
** * ***** *** * (c)
*** ** *** * * **** * * ** * * (h==0 && g==0 && f==0 && e==0 && d==0)
* * ** *** * ***** * * ** * * ** * * ** * *
* ** ******* * * * * (b)
* *** * * ** *** ** ***** *** * ** ** ** (h==0 && g==0 && f==0 && e==0 && d==0 && c==0)
** *** * * ****** ** *** ****** * * * * * ***
*** * * ** * ** * ** * (a)
** * * *** * * * * **** * * ****** *** *** ** * (h==0 && g==0 && f==0 && e==0 && d==0 && c==0 && b==0)
** * * * **** * ** *** **** *


* * ** **** * * * * 0;





}

Comments

prog.c: In function 'main':
prog.c:9:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:11:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:12:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:14:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:15:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:17:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:18:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:20:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:21:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:23:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:24:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:26:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:27:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:29:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
cc1: all warnings being treated as errors

Answer 9

Hidden content!
#include <stdio.h>



int main()



{
* ** ** *** ** n,a=0,b=0,c=0,d=0,e=0,f=0,g=0,h=0;
** * * * **** ** * * ** ** * ****** * ***


* **** * *** *** * ******* (n!=0)
** * ** ** **** * ** * ****** * * ***** ***
*** ** *** * ***** ** ** * ** * ** **
** * ** * * * ** (n!=0)
** * *** * * ** ** *** ****** * ** * * *
** * * * * *** ** ***** ***** * * * * *** **

    if (n!=0)
* ** *** **** * ***** * *** * ** * * * * **
* * * **** * * * * * ** * ** **** ** ** * **** *
* * * ** * **** * **** ** (n!=0)
***** **** * * ** ** * ** * * *** ** ***** *** ***
* * * ** * * ** * * * *** ***** ** * ** * *** * ** * *
*** * *** * (n!=0)
* * * **** * * * ** **** *** * **** * **** **
* * **** * * * ** * ** ******** **** * **** ***
***** *** * * **** ** (n!=0)
** * ** *********** * * * *** * ** ** * ** *
* * * ** *** ****** * **** * * ** *** *
*** * ** * ** * (n!=0)
* ** ** ** ** * * * * * * * * * * * ** ***
** *** * * *** ** ****** * * * *** ** ** * * ****
**** ** ** ** ***** ** (n!=0)
* * ** *** * ** * ** * * * *** * * * * ** *
** * **** ***** * *** ** * (h)
* * **** ** ** * * * * ** ** * **** *
*** *** *** ****** * * * (g)
*** * * * *** **** * * * * ******** *** (h==0)
** * * * * *** * * * ** ******** * * ** ** *
* ***** * * * * * * (f)
** * **** * ***** **** *** * *** ** ***** * * * (h==0 && g==0)
** * * * ***** * *** * * **** * * **** * * ** *
* ** * * **** ** * * (e)
* * *** * ** *** *** * * *** ** * ******* (h==0 && g==0 && f==0)
* * * * *** * **** * ****** * **** * * ********
* * * *** ** * (d)
*** ** * *** * *** **** ** * * * * * * * *** (h==0 && g==0 && f==0 && e==0)
***** * *** * ** * ***** *** *** * **
*** * *** * * * * * (c)
* ** * ** ** *** * ** * * * ** * * * (h==0 && g==0 && f==0 && e==0 && d==0)
*** * * * * *** * * ** * ** ******
*** * **** ** * ** * *** * * (b)
** * ** * * * * * ******* * ** * ****** * ** (h==0 && g==0 && f==0 && e==0 && d==0 && c==0)
* * * ***** * * ******** * ***** * * * **
**** ******* * * * * (a)
* * ** **** ** * ** * ** * *** * * ** ** * (h==0 && g==0 && f==0 && e==0 && d==0 && c==0 && b==0)
*** *** * * ** * ** ** **** * ** *** * **


******* * * * ** ** 0;





}

Comments

prog.c: In function 'main':
prog.c:9:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:11:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:12:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:14:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:15:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:17:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:18:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:20:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:21:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:23:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:24:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:26:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:27:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:29:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
cc1: all warnings being treated as errors

Answer 10

Hidden content!
#include <stdio.h>



int main()



{
******* ** ***** **** n,a=0,b=0,c=0,d=0,e=0,f=0,g=0,h=0;
** * **** * ** ** *** ** * ** * * **


** * ** * **** *** * (n!=0)
* ** * **** ****** *** ** ** ****** *** **
* * * * *** * ** * ** ** * * * * * *
* * * * ** *** ** (n!=0)
* **** ** ***** * * ** ** * ** * ** * * **
* **** * *** **** ******* ** * * ***** ** * ****

    if (n!=0)
* *** *** * ***** ** ** **** ** *** *
**** ** * * * ** * ** ** * * * ** * * *
* *** ** * * ** * (n!=0)
* ** ******** * * * * ********** * *** * * * *
* * * ** ** ****** * ****** *** **** ** ** ****
* ** * *** ** * * * (n!=0)
* ** * *** **** **** *** ** * * * *
* * * * ** **** ******* ** * * **** * * ** *** * * * *
* * ******** * * ***** * *** (n!=0)
** *** ** * * * * * ******* * * * * * * * **
* * *** * * * * * * * * *** ** * * *
** ** *** *** *** (n!=0)
* *** **** * * *** * ** * * *** * ** **
*** * * * * ** * * *** ****** ***** **** * *** *
* ** *** * ** * * (n!=0)
*** ** * ** *** ** ** ** ** * * ** * * ***
*** *** * * * ******* ** * (h)
** * ** *** * * * * ** *** *** * *** *** * ** *** *
*** * * ** * * * (g)
*** * **** * * * ***** ****** *** * * (h==0)
* ** * * * * ** **** * ** ** * *
** * * * ** **** (f)
* ** * * *** ** * ** **** * ** **** * ***** *** (h==0 && g==0)
* *** ** ** *** * **** * * * *** *** * *
* *** * * * ** ** * (e)
**** * ** * ** * **** * * * ** * * (h==0 && g==0 && f==0)
****** *** ** * ** ** ** * ** * ** ** * ** * **** *
***** ** * * * *** ** (d)
*** ** *** * ** * *** * * * ** ** (h==0 && g==0 && f==0 && e==0)
* ***** ******** * ***** * ** ** ** * * ** *** ****
**** *** ****** * (c)
*** ** * * *** *** * * *** * ****** *** (h==0 && g==0 && f==0 && e==0 && d==0)
*** ** *** * * *** *** ** * * ** **
** * * * ** * * *** (b)
** **** * *** ** ** ** * * ******* * ** (h==0 && g==0 && f==0 && e==0 && d==0 && c==0)
**** ** ** ** **** ** * ** ** * ***
* * ** ***** * * * (a)
* ** * **** * ***** * * **** ** * * * * (h==0 && g==0 && f==0 && e==0 && d==0 && c==0 && b==0)
* ** *** * * * * ** * **** * * ***** * * *


** * ***** * * ** **** 0;





}

Comments

prog.c: In function 'main':
prog.c:9:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:11:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:12:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:14:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:15:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:17:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:18:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:20:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:21:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:23:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:24:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:26:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
prog.c:27:5: error: this 'if' clause does not guard... [-Werror=misleading-indentation]
     if (n!=0)
     ^~
prog.c:29:9: note: ...this statement, but the latter is misleadingly indented as if it is guarded by the 'if'
         n=n/2;
         ^
cc1: all warnings being treated as errors