Midterm Question 2 - Makeup

0 like 0 dislike
5.3k views

The 13-digit International Standard Book Number (ISBN) is a unique code that identifies a book commercially. The last digit is a check digit used for error detection. To calculate its value, each digit of the first twelve digits is alternately multiplied, from left to right, by 1 or 3. The products are summed up and divided by 10. The check digit is the remainder of the division subtracted from 10. If it is 10, it becomes 0. 

ISBN檢查號的計算方法: 前12個數字，奇數項 乘以 1 ， 偶數項乘以 3

For example, assume that the first twelve digits are 978960931961.  

假設號碼前12位是978960931961

(a) (9*1 + 7*3 + 8*1 + 9*3 + 6*1 + 0*3 + 9*1 + 3*3 + 1*1 + 9*3 + 6*1 + 1*3) = 126 

(b) The check digit = 10 – (126 % 10) = 10 – 6 = 4  

檢查號 = 10 - 餘數 = 10 – (126 % 10) = 10 – 6 = 4  

So the valid ISBN is: 9789609319614

Write a program that reads a 13-digit ISBN and checks the last digit to see if it is valid or not. 

寫一個輸入13位ISBN號碼 判斷最後一個數字是否檢查碼即可

#Try 1:

Input:

9789609319614

Output: 

Valid ISBN

 

#Try 2:

Input:

9781482214505

Output: 

Valid ISBN

 

#Try 3:

Input:

9780132936493

Output: 

Invalid ISBN

 

[Exam] asked in Midterm by (12.1k points)
ID: 36751 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 5.3k views

26 Answers

0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main(void)
{
*  *  ** * *   *** * * * *      * a,b,c,d,e,f,g,h,i,j,k,l,m;
*  ** ***    *  *****  **   ***     **   *    *    *  ** * * *  *      * * *  * ** *  ***  *    *****  *      ** *   **  ** *   * * ***  **    **    *  *  **** * *** * * *** **   

**   * **    **** ** *** ** *   *  check,sum;
  * ***** * *    *  ******** * ** *  *   **   *** * *
 *    **   *  *  * * *  ****  *** *  * * * *  ***** *       
  ***  *    **** *    *  * *  *  * 

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

    



**  ****** ** *  *     * *****  ** * ** != m)
**  * ** *  *  * **  **     
  * *   *** **   **  * *   *  *  * ***  * *  ** **  *  * ****** * * ISBN");
**  * ***  *** **** **    *** ***
*     ***   ** **  *       ** 
*  **   *  *  *  *** * ****
 **** *    **  ** **         ** * * ** *    ****  ISBN");
    }

return 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
   int ***   * ****  *** **   *** ***

* ***  *   * ** **   * **  * * *  %1d %1d %1d %1d %1d %1d %1d %1d %1d %1d %1d ** * *** ****  *  ** *** * ***  *** *    **  **  *    *  * ** ** **  * *  **   **  ** * **  *  **   * *  *   **** *   ;

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

*  * ***   *  **     ** *  *   ***
*    *****  ****  *   * **  ******    ISBN");}
*   *  *** *** * * *  ** * *   
 *   * ** *   * * * ****   *  * * ** * *  *   *** ** *  *        ** ISBN");
  *  *  * * ** ** **  * **
* ****** *  ** *  **  ***** ** 0;
}
answered by (42 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()
{
   int  *  * *** *****  * *        **

     ** *  *  ****   ** **   ****   %1d %1d %1d %1d %1d %1d %1d %1d %1d %1d %1d    ** *  *  **    * * **   *****   *  *  * *  **** * **    *   *   ** * * ** ** * *  **** * * ***** *   *   *   *    **  *  *     ;

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

 *  *    ** ****  *  * *****
**   *** **** ***  *  *** *    *  ***  * ISBN");}
 *  * ** *  * * ***   * ***  ***
   *   * *    * * ** ** * *    **    ******    **    *  * * * ** *  * *****  *  ** ISBN");
 * * **** **   *  *  *  *  *  
 **   ** * **   *   **  *** ** * 0;
}
answered by (-167 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,k,l,m;
***** *  *****   *  * * * ** ***   *  *** * * *       *   *   * *    * * *   ***    * *   ** * *  * ** ** ** **** *   * ***   ** **   ***** *  * ** **** **** * *  ***

* * ** **  *  ***  ** ** *****   check,sum;
 *        * ***   ** *  ** ******     ** *****  *  
* *   * *  *    **  **    * **  *  *        **   ****    ********
*   ** *  *  ******  *   *  *  **    * ** 

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



    * *      ** **    * * * ******** != m)
    {
* ** * *****  *      ** ***** * *     *    * * * **  * ****** *  *    * ISBN");
** ** ** *** * *  * * *  *
  ****    * * *    * *  * ** 
    *** **  **** **  * *
** *** *         ***  * ****** *** **  * **** * * **  *** * ISBN");
   *****    * *     *  **   **

return 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong 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,k,l,m;
*   *  * **** *  *    *** * * ***  ** *    ** *  * *  ** *** * *  ***  * *  * * ***** ** *** **     ***     *  * *   * **  *  * * ****   ****** *   ** * *** *  *    *   

  *  * ** *  *  * *  * *  check,sum;
  *****       *  *  ** *      *     *****  ***  * * *  *  *** 
**  *  *  *     * *     *****    **** * * * ** *    ** *** *
****** *   * *  **    **   *    ** * 

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



** *** ***  *  ** * ***   *    * *  != m)
    {
  * *   ** ** *** *****  *  * ***     * **  * **     **  * * * ***   ** ISBN");
 *** *  * *    * *** ** *   * 
*  * ***  * * * **** *  * **
*   *  *** *   * ** **  * ** * **  
 *   **   *   *  * * * ***      **** * ***    *   ISBN");
    *  ****   * * * ******* * *  

return 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong 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,k,l,m;
***   *   * *  ****   ***   *   *  * * ** **  ******    **   *  *  *****   ***    ***  **     ***  ****    * *** *** ** ***   ***   **   ** ** **  * *   **    * *

*   * *  * ** *   * *   *  ** check,sum;
 ***** *  *  * **  ** *** * *   ** ** ****  *  * **
** ** *   * ** ***** ***  * *** *   *  ** * * ****   *  ****
*      ** ** ** ** ** *  ***  *****   **
    


 **   * *  * * *  ***  * ***  * ** != m)
    **    *  ** *    *** *  ****
  *    **** * *  ** **  **  ** *    *    *  ** * *  *  *    * **   * * ISBN");
* ** **  **    * * *  * ** *
    * ***   *   ** * *       * *
** *** *    *   *   ** *** * *  *
****  **  ****** *  **     ****   * ** ***    *  ** **** ** *  * ISBN");
***   ** ****  ** ***  ** *  
    
return 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include       **  ** ** 

int main()
{
   * ****  **  **** * ** a;
* * *** *** **  ** ******      * ** **   *  
 ***  ** ***  *** *   * *    ***  * * *   *   ** 
* ***     * * * * **    **  0;
}
answered
0 0
prog.c: In function 'main':
prog.c:6:10: warning: too many arguments for format [-Wformat-extra-args]
    scanf("a",&a);
          ^~~
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,k,l,m;
    *  * ***** * **  *     **   * **   *  *    *** **** ** * * *** ** *      *  * * * * * *****   * ***     ** *** **  ******* **   *  ** ***  *  * * * * **** *     *   

* *  * * *** ** **  *    *     check,sum;
 **  *   *****   ** ****  ** * ***     * ****  *  *  
*    *** * ** *** *** * *** ** ****** * *** *   
    


 **   *      **  * * *  ***   *  ** != m)
       *  **    *  * ****** 
 * **** *  **  *  *  *** *  ****** ** *    **** *** *    *  * *  ** **  *** ISBN");
  *  **     ****  * ***  *
* ** **  * * **   ***  ***** *   
*****    **  * * ** * * ****  * 
* *  * * * ***  *** **  **** **    *            * *    * * ISBN");
 * * **  * *  * **  ** *
  *  *** *  ** *       *** 
return 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
    int s1,s2,s3,s4,s5,s6,s7,s8,s9,s10,s11,s12,s13;
    int check;
    int sum;

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

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

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

**  ** * * * * *   **  *    * *  **  **   * ********  *** (check==s13)
 **   ***  * * **  ** *** **** ** * *****  ****    *  * * ***   
  *** **** **       *   **   * **  ** *** *** ****  *****     *     * * **  **** * *  ***  *   ** ISBN");
    **     *  ********* *   * * ** ***   ***   * *****    * *  * 
  ** ** * * * *     **  ******  ****  * * *  **  * **   **** *
   *  ****   ********** *  * ***     * ** *** **  *   * ** ** 
* * **** * ***** *****  **** *       *   **  *   * **  * *    ***  * * * *   * ***** ** **   * ** * ISBN");
  **  ******  ***  *   *   **  * *  * * * ** **  * *  *** *

}
answered by (-193 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   ***   *  ***   * 
#include    *  ** ***   * *

int main()
{
 * *****  ** *****  * **    a,b,sum;
 * *  **    *******   *  *****  * *   *    ** **  * *****  *  * 
** **  *  *   ****   *   *  number;
***    **    * *    ** *** *  ** odd number;
 * *  *  * ***** *  ***  ***    
  * *   *  **  *  *   ***    (10-(sum%10)=last number)
 **  * **     **** **  *  *   ****  ***   **  * ** * *  * ** ISBN");
** ***  * *    **   * ****  
****  ****       *   * *** *  *****   **  **** *****        *** **    ISBN");
*****    * *  *   * **  *** * 0;
}
answered by (-108 points)
0 0
prog.c: In function 'main':
prog.c:8:7: error: 'odd' undeclared (first use in this function)
     a=odd number;
       ^~~
prog.c:8:7: note: each undeclared identifier is reported only once for each function it appears in
prog.c:8:11: error: expected ';' before 'number'
     a=odd number;
           ^~~~~~
prog.c:9:7: error: 'not' undeclared (first use in this function)
     b=not odd number;
       ^~~
prog.c:9:11: error: expected ';' before 'odd'
     b=not odd number;
           ^~~
prog.c:10:12: error: lvalue required as left operand of assignment
     a*1+b*2=sum;
            ^
prog.c:11:21: error: 'last' undeclared (first use in this function)
     if (10-(sum%10)=last number)
                     ^~~~
prog.c:11:26: error: expected ')' before 'number'
     if (10-(sum%10)=last number)
                          ^~~~~~
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.214.39
©2016-2025

Related questions

1 like 1 dislike
49 answers
Midterm Question 2
[Exam] asked Nov 15, 2017 in Midterm by thopd (12.1k points)
ID: 32706 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 8.3k views
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 | 13.6k views
0 like 0 dislike
15 answers
Midterm Question 6 - Makeup
[Exam] asked Dec 9, 2017 in Midterm by thopd (12.1k points)
ID: 36755 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 3.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users