1 like 1 dislike
1.7k 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
| 1.7k 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:172.70.131.216
©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