10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
29.7k 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 | 29.7k 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:104.23.197.88
©2016-2026

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 | 20.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users