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:172.70.178.217
©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