1 like 1 dislike
11.6k 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
| 11.6k views

49 Answers

0 like 0 dislike
Hidden content!
#include<stdio.h>

int main() {
* *** ***** **** * ** * *** a[13],i,sum=0;
* * ***** * * ** * * ** ** ** {
* * ** * ** * *** **** * *** * ** * ****** **
** * ******* * ** * * * * * * * ** *
** *** * * ** * * * **
** ** * ** ** ** ** * *** * *** ** * {
*** **** * * ** * * * * * **** * * ** ** **
* * * * * *** *** * * ** ** *** ** * ** *
    }
***** * ** ** * * ** * **** *** {
**** *** * * ****** ***** * *** * * * * * ***
* *** ** ** ** * * * * *** **** ** ** * * * *
    }
** * * ** * * * ** ** * ** * {
*** * *** * ****** **** * * ********* **** **** * ***** ISBN");
** ** * * ****
* * ** ** * ** ** * * {
** ** ** * **** ** **** * * * **** * ** *** * *** ISBN");
    }
}
answered by (-120 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 * * *** * *** ** ** ** * *

** *** * * *** * ******* %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
0 like 0 dislike
Hidden content!
#include <stdio.h>
int main()
{
** * * * ** * **** ** *** ** * * ****** *** *

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

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

** * * ** * * ****** ****
* **** * * * *** * * * * ** * * ISBN\n");}
* * ** * * ** * ** * **
** * *** *** ** ** * * ** * * * * **** **** ** * ** * ** * * ISBN\n");
* * ** * *
******* **** ** * * * 0;

}
answered by (-167 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong 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,sum=0,check=0;
***** ** *** * **** * * * * * ** ** * * * * ** **** * * ** * * * * ***** *** ** ***** ** * ** *** * * * ** ***

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

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

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

**** * * * * ** **** * ** ** 0;
}
answered by (-127 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!
* ***** * * ** * * *
int main()
{
*** *** * * * * ** ** ***** a,b,c,d,e,f,g,h,i,j,k,l,m,sum;
*** * * * *** * * * ****** * ****** **** * *** * * * * ** * * * *** * ****** ** * * ** * * **** * **** * * **** ***** * * ****
* * * ** ** * ** ** (a*1 + b*3 + c*1 + d*3 + e*1 + f*3 + g*1 + h*3 + i*1 + j*3 + k*1 + l*3);
* * *** * * * * * 978960931961
* * ** ** ***** ** * ** *
** * ** * * ***** *** ** **
*** * * * * * **** *
** * **** * * ** * * ** *** *** * ** ** * * * * ISBN");
*** * *** ** *
**** * * ** * **** ***
* * * * * **** ***
*** * * * * * * **** *** ** * ** ****** * *** ** * ***** ** *** ISBN");
** * **** * *** * *

//9781482214505
//9780132936493
}
answered by (-329 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 (void)
{
**** ** * ** * * *** tab[13],s,i,m;
*** ** * ** ** ** * * (i=0;i<=12;i++)
* * **** * ** * *
** **** * * * *** ** ** *** * ** * * * * * * *** ** ** *** * * ****
* ** * ***** *
**** * ** * * ***** * **** ******* **** ** **** * **** * * * * ** * **** ** * * * *** **
** * *** * * ** *****
* * * ***** * ** * (m==tab[12])
    {
** * ** * * * * **** *** ***** * ** *** * * ** * ****** * ISBN");
* *** ** **** ** ** * *
* **** * *** ** ***** **
* * *** *** * ******* * * ** *** *** **** * * ** ** ISBN");}
* * * * *** * * * 0;
}
answered by (-168 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 (void)
{
* * * ** **** * ** * * * * * ***** ** **
* * *** * *** * ***** * ******* **** ** * * ** * * *** * ** * ** * ** * **** *** *** * ** * ** * * * * * * * *** ** * ** ** *** * *
********* * **** ****** ** * ** * ******** ** *** * *
* * * * * * * * * * * * ** * (10-(b%10)==a13){
* * * * **** * * ** **** * * * * ** * ** * ("Valid ISBN");
** ** * *** * * *
** * ***** ***** *** * * {
* * ** **** * * * * * ** * *** * ** ** * *** ** ("Invalid ISBN");
** * ** * * * ** *
}
answered by (-204 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 (-168 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!
* ** * * * *** *

int main()
{
int ** ** * * **** * *
* * ***** ** %1d %1d %1d %1d %1d %1d %1d %1d %1d %1d %1d * * * * ** **** * *** ** *** ** * ** * ** *** * *** * *** **** * ** * *
** * ** *** ******* *** *
* **
**
*** * ** ** **** **
else
** **** * ** * * * *
* * 0;
}
answered by (-66 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!
** **** *** **
int * * ** *** * *
int main()
{
* ** ** * * * * * *** * **** ** **** *** * **** * * *** * * * * * * * * *** ** * * **** * ** * * ** ** *
* * * * ** * * * *** * ***** *
c=10-(b%10);
if(c==a13)
{
***** ***** * ** * **** ** *** ISBN");
}else
{
*** **** *** * ISBN");
}

}
answered by (-336 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:162.159.115.31
©2016-2026

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
| 7.4k 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
| 17.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users