1 like 1 dislike
9.8k 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
| 9.8k 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:172.69.130.93
©2016-2025

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
| 6.5k 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
| 15.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users