Midterm Question 2

1 like 1 dislike
1.8k 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 | 1.8k 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:172.70.178.138
©2016-2024

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 | 1.1k 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 | 2.8k views
12,783 questions
183,443 answers
172,219 comments
4,824 users