10-19 Exercise 2: Convert decimal to binary number

2 like 3 dislike
26.1k 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 | 26.1k 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:162.159.115.32
©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 | 18.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users