Midterm Question 2 - Makeup

0 like 0 dislike
4.2k 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 | 4.2k 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:172.69.59.89
©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 | 6.4k 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 | 10.8k 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 | 3.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users