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;
*
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*** ** *
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* * 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;
* **** * ** * ** * *** * * * * * ******** ****


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


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* * * ** *** * * *** (n!=0)
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    if (n!=0)
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*** *** * ** *** *** (f)
** * *** * *** *** ** ** * **** ** ** * * ***** (h==0 && g==0)
** * * ** *** **** **** * ** * * * * * * * *
* * * *** * *** * * * ** (e)
*** ***** *** * * * *** * ***** * * ** * ** * (h==0 && g==0 && f==0)
**** ** * * * * ** * ** *** ** ** * * **
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*** * *** **** * ** * *** * ** * * * * * (h==0 && g==0 && f==0 && e==0)
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*** * ** ******* * ** **** * (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