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
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
0 0
Case 0: Wrong output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
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
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
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
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
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
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
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
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.70.131.23
©2016-2024

Related questions

0 like 0 dislike
26 answers
[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
[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