Midterm Question 2

1 like 1 dislike
5k 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: 32706 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 5k views

49 Answers

0 like 0 dislike 
Hidden content!
* ** * *   * *   *  * 

int main(){

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

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

* *  * **  *   *** **     *   printf("Valid ISBN");

****    *** *** * *********  **  printf("Invalid ISBN");


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>
#include <stdlib.h>

int main()
{
    int ** * ** *  * ****      ***  *  **  

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

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

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

**  * ****   *** ** *    * * *** * ***
 ***   ***        **   *** * *     *   *****  * * *  * *  *   **   ISBN");
*  * * *    ** * *** ***   *  
*  **   * ** ********   ***** * **  *****      **  **  ** **   **      ISBN");

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


}
answered by (-16 points)
edited by
0 0
Case 0: Wrong output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 0
Case 0: Wrong output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k 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()
{
*  *  ***** ***  **  **  * *   *  ***   ** ** * ****
  *********  ***    * ** **   *   * *  *** ** ** * ** ****   * * ** **   * *   * ***** ** * * **  *  ** * ****  ****    ****  **** **    * ** * **** * * **** *    *
 *** * * * ***** *  * * *  *  = (a*1 + b*3 + c*1 + d*3 + e*1 + f*3 + g*1 + h*3 + i*1 + j*3 + k*1 + l*3);
  ** *  ** *** **** **   *    *  *  * = 10 - (sum%10);
 **       ** * ** *   *** * *  *****
***      *** * ** * ** ** *  * * * *** **   *  **   **** *   *** **  ISBN");
*     * *  * *** * ****** * *  *  **
*  ** **  ****  ******   **** ***  ****    * ***** **  ****** *   ISBN");
*       *  * *  * ** * ***  0;
}
answered
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 a,b,c,d,e,f,
**   *  *    *       ***  *  ** ****** ***  ****** *     *  
  *    *   **        ** *** * * *  *   *****  ** **
* * **   * *   **  ** *  *  * *      ** *** *  ** * ** * ** *   *****  * *     *** **    *** *  ****   ****  * **  * **  * *** **  *****      ** *  *  *    *****  ** *
  *   ****** ** * * ** ***  * ***** *****     **  * *
 *  * *     *    * *  * * **    * *** **  ** *
**** ** * ***** ****  **      ** *  
 ***  *  *   ** ****  *  ***  *  
   * *  *    * *  ******  ***  *  ** ****** *  *  ** **  ** * *** ** * *  ** ISBN");
    }
*   **  *** * *****  *** *  ******
*   *   *   * *****   **    **  ***  * ** *** ****** **  *  **  *  *  *    ISBN");
    }
**** ** *     ** *** ****   ** *  0;
}
answered by (54 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>
#include   * ***  **   *  ** 

int main()
{
 **   *   * *  *  *****     *       ** ***
  * **  *  *   * *      * ***  **  ****  * *   ** ** **  *    *  ****       * **** ** * * ** ***** **     *  * * * * *  ** *   ** **   * *  ****** ** * * **** 
**  * *** *  ** **  ** = 10 - ((a + c + e + g + i + k) + (b + d + f + h + j + l)*3)%10;
 *** ***   ****    *   * == m)
****  *   ***  *  * **   *    ** *** *      ** *  *      *  ***  ISBN");
*   ** * ***  *   *****  **
** **  * ****  *  *  *  * *** *  * *** *        **  ***  **     * *  ISBN");

 *  **      ** *    * *  ****  *   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(){
  * * ** * *  * * ******  * i=0,sum=0;
  **** *  * **** **** **  ** *** isbn[12],check;
*****  ** **** *    ***** * *  *  * ******
      *        * **  ** *  ** ** * ****  * * * *    *** *   ** *   *  **   * * 
 **** ** ***      *  ** *  * 
  * **     *   ** *  ***  *    ** * *   ***   *** ************ 

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

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

 * *  *  ** * *** **   **   *** ** printf("Valid ISBN");
 *   * ********* * *    * **  * printf("Invalid ISBN");

*    ***  * * *  ********* *  **    0;
}
answered by (-116 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()

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

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

 *  *    ***** *  **** * **  *  * (check==last)
    {
   * *** ** * ** **  * ** *     ***   **  ****    ***   *****  * *  * ISBN");
    }
*  *  **  ***    * *   *   * ** *
 * * *  *** *  ** **  ***** *
     ** *  * **      *** * ***           *   * *  * **    *  ***   **** ISBN");
  ***** * *  ** *  * **** * **  

*  ***** *  *      * *  * * * 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()
{
    int   *  * * * *  ***   ** **  * * ***   
   *****      ****  ***  * ** **   ** ** **   *   ******* **  **  * *  *  * **  **    **  *** **  ***       *  **    * ** * * **  ** * * **    * *   *      ** **     * **      *  
**  * *** *  * ** *  **** *  ***   ** ***** *     **  *  **     
** **       ****   *  * **  *** **  ** *

* * *      ** *   *  * *  ** *  **  **
*** *   ****  * ***** * ***   * ***    * * ** * *        **  * **     ** * * ***** ISBN");
**       * * ****** *    printf("Invalid ISBN");

  ****  * * *   *** *    **  * 0;
}
answered by (-196 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>
#include <stdlib.h>

int main()
{
     * ****** *     *    *   a,b,c,d,e,f,g,h,i,j,k,l,m,n;
  * *    *    ****** ** * *** *  * ** * * *  ** *  ****    *  * *   ***   *  *  *** *    *   **  ** * **     **** *  ** ***  *** * * *  *** *********  **  *** ***  ***** * ***** * * *  
*  * * *  *  **** **   ** ****   * ** ** * **    
* *  * * ** **    *** ** ********   ** 
***  ***      *  *** * *    * **  
**** * ** **     ** *** *     **  *   ***     ***   * ** ***** ** * ISBN");
 * *  * ***  ***** **  *** ** 
  ****  **  * * * * *  *  *** * **  **** **      *   ***  *** *** * * **  **        ISBN");
   ** * *  *    *  *****  **** 0;
}
answered by (-498 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.71.254.223
©2016-2025

Related questions

0 like 0 dislike
26 answers
Midterm Question 2 - Makeup
[Exam] asked Dec 9, 2017 in Midterm by thopd (12.1k points)
ID: 36751 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 3.2k 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 | 8.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users