10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
21k 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 | 21k views

119 Answers

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 ***** * **


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


* * * * ** 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!
* ** * * * *** * * *


* * **

* * * * * **** *


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


* * * * * b = a % *
* * * * * **** c = a / 2 % *
* * ** d = a / 2 / 2 %
* * * ***** e = a / 2 / 2 / 2 % *

* * *** * f = a / 2 / 2 / 2 / 2 %
* ** * * g = a / 2 / 2 / 2 / 2 / 2 %
* ** * * ** h = a / 2 / 2 / 2 / 2 / 2 / 2 % *
***** * * ** i = a / 2 / 2 / 2 / 2 / 2 / 2 / 2 % **
* *** * j = a / 2 / 2 / 2 / 2 / 2 / 2 / 2 / 2 %


* ** * * *** **** *
**** ** *** {
** * * * * * *** *** * * ** *** *** *** * * ***
*** ** * }
* * *** ** * * *** * 0 * h * *
** * * ** {
* * * * *** ** * ***** * ***** ** *** ** * *
* * * }
* *** * ** * * * * 0 * *** * g * *
* ** *** * {
*** * *** * * * * * ** ***** * * ** * ** * ** * *
* * ** * * * }
***** * ** *** *** * ** 0 **** * * * f * **
* ***** *** ** {
* ** ** * * * * **** ** * ** *** * * *********
******** * * * }
* ** * * *** ** 0 **** * e *
* * *** {
** * **** * * * *** ** * * * * **** *
** * * * * }
*** * * ** ** ** * * 0 ** * * d * *
* * ** {
* *** * * * * * * * * *** ** ** * * * **** *
*** ** * }
** * *** * * * 0 * ****** ** *
* *** ** * {
* ** ** * **** * * ** ** **** ** * ** **
* **** * * }
** ** *
* ** * * * {
* * *** *** * ***** * * * ** * *****
* *** * *** }
answered by (-285 points)
0 0
prog.c: In function 'main':
prog.c:43:19: error: stray '\343' in program
  else if(d == 0 &&\xe3\x80\x80c != 0)
                   ^
prog.c:43:20: error: stray '\200' in program
  else if(d == 0 &&\xe3\x80\x80c != 0)
                    ^
prog.c:43:21: error: stray '\200' in program
  else if(d == 0 &&\xe3\x80\x80c != 0)
                     ^
commented by (4.3k points)
0 like 0 dislike
Hidden content!
#include<stdio.h>



int main(void){


* * * ** ********** ** a,b,c,d,e,f,g,h,i;


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






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















return 0;



}
answered by (-301 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 main()

{

  int ** ****** * * * *
* * ** * * * * * * ** * * * ****** ***
*** ** **
* * * * * * ** *
* ** **** * *** * *
*** * ** * **
* ** ****** * ***
** * *** **** * * *
***** * * *** ** *
* * * ** ** * ** * **
* * * * ** * *** *** *** * ***** * * ***** * ** * * ***** ** * ** ** ** * ** * * * *** *

  {
* *** * * * ***** * * * ** * * *** * *** *

  }
* * * * * * * ** * * ** ** * **** ** *** ** ** * *** *** * * *** * ** **** ***

  {
* **** * ** **** **** ** ****** *** ***** * *** **

  }
*** * *** **** * ***** * * ** * * ******** ** * ****** * ** ***** * *** *

  {
** * ** * ** ****** * *** * ** * ** *** *** * * * * * ** * *

  }

  else * * ** ** ** ** * ** *** * * *

  {
* * * * ** * *** *** * ** *** *** ** *** * * *** *

  }

  else *** * ** ****** ** * ** * * *

  {
*** * ** ** *** ** ** * * * * * * * * *** ** * * * ** ** * ****

  }

  else * **** ** * ** * ** *

  {
* ** * ** ** * * *** * * ** ** ** * * * * * **** **** **** * *

  }
* * * * * if((a0==0))

  {
**** * * * ** * * * ** * **** ***** *** ******* ** * ** *** *** **** ** ** * * *

  }
* * * * ** **
* *** ** *** **** * ** ** **** *** * * ** * ** * **


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

}
answered by (-255 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>



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;





}
answered by (-249 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>



int main(void){


* *** * *** * * a,b,c,d,e,f,g,h,i;


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






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















return 0;



}
answered by (-301 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>



int main(void){


* ** * * **** ** * ** * a,b,c,d,e,f,g,h,i,j;


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






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



































return 0;



}
answered by (-301 points)
0 0
prog.c: In function 'main':
prog.c:19:12: error: too many arguments for format [-Werror=format-extra-args]
     printf("%d%d%d%d%d%d%d",i,h,g,f,e,d,c,b);
            ^~~~~~~~~~~~~~~~
prog.c:5:27: error: unused variable 'j' [-Werror=unused-variable]
     int a,b,c,d,e,f,g,h,i,j;
                           ^
cc1: all warnings being treated as errors
commented by (4.3k points)
0 like 0 dislike
Hidden content!
#include<stdio.h>



int main(void){


* * ** ******* ** a,b,c,d,e,f,g,h,i,j;


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






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



































return 0;



}
answered by (-301 points)
0 0
prog.c: In function 'main':
prog.c:19:12: error: too many arguments for format [-Werror=format-extra-args]
     printf("%d%d%d%d%d%d%d",i,h,g,f,e,d,c,b);
            ^~~~~~~~~~~~~~~~
prog.c:5:27: error: unused variable 'j' [-Werror=unused-variable]
     int a,b,c,d,e,f,g,h,i,j;
                           ^
cc1: all warnings being treated as errors
commented by (4.3k points)
0 like 0 dislike
Hidden content!
#include<stdio.h>



int main(void){


** * ** ** * * * ******* * a,b,c,d,e,f,g,h,i,j;


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






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



































return 0;



}
answered by (-301 points)
0 0
prog.c: In function 'main':
prog.c:19:12: error: too many arguments for format [-Werror=format-extra-args]
     printf("%d%d%d%d%d%d%d",i,h,g,f,e,d,c,b);
            ^~~~~~~~~~~~~~~~
prog.c:5:27: error: unused variable 'j' [-Werror=unused-variable]
     int a,b,c,d,e,f,g,h,i,j;
                           ^
cc1: all warnings being treated as errors
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.71.254.193
©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 | 14.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users