2 like 0 dislike
20.8k 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

 

[Exercise] Coding (C) - asked in Chapter 5: Selection Statements by (12.1k points)
ID: 27667 - Available when: Unlimited - Due to: Unlimited

edited by | 20.8k views

77 Answers

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

int main()
{
*** * *** *** **** * * * * ** * ** * ***** ** * * * * * ** *** ****** * * *** * **
* * ***** ** * * *
* **** ** * *** * * * ** ******** ** ** * * *** * *** ****** * * *** **** * * * ** *** * ** * ** * * ** ** ** **** * * * ** **** * * *** ** ** ** * * ** ** * ***
** **** ** * * *
* ** *** * *** * = ***** ** *** *** ** *** * ** * * **** * *** *** ** **** *****
*** * *** ** * ***
* * *** ** ** **** ** = 10 - (a%10);
    
* * * ** * ** * ***** ( b == number13 )
* ** **** * * ** ******** * * * *** ** * * * ISBN");
    
* * *** ** **
* * *** *** * *** ** * * * ** ** ****** * * * * * * ** ISBN");
****** *** * ****
*** ** ** ***** * *
* * * * * * ** * * 0;
}
answered by (-233 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include <stdio.h>
int main()
{
*** * ** * *** ** * * * ** ** *** ***** **** *
** * *** * * * *** ** * ********* * *** * ** *** * *** ****** *** * ** ** ** ** ** * * * ******* * ***** *** *** * * * * * ** ******* *** * ** * **** * *
** ** * * ** * ** ** *** ** *** * * ** *** **** *
*** * *** * * **** * * ** * *
* * *** * ** ** * * ** * * printf("Valid ISBN");
** ** * **** **** * printf("Invalid ISBN");
** *** * * * ** *** * 0;
}
answered by (-32 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()
{
* * ** ** ** *** * * * *** a,b,c,d,e,f,g,h,i,j,k,l,m;
** **** ** *** * * ** ** * *** ** * * * ** * **** * *** *** * ***** * * **** * ** *** ** *** * * * ***** **** * * * *** ****** *
* * * * ** * *** *** * *** * * * ** *** *** ****
* * * ******* *** ** **
** * * * * * ** * **** *** * *** ** ** *** ** * ** ISBN");
* * * *** *** * ** *
** ******** * *** * **
    {
* ** ** * * *** * ** * **** * ** ** **** *** ** * ISBN");
**** * ** ** ** ** ** *
}
answered by (-254 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>
void main()
{
    char isbn[12];
    int a=0,b=0,c,d,e,i,g,h;
** ** * * **** * ** ** **** **
*** *** ******** * ***** *** * ****** ****
** ** * ** ***** * * *** * * ***** *** ** * ** * ** ******* *** ** * ***
* * * ** ** * **** ** * ** *** *** * ******
* ** ** * ** * * * ** * *** ** ** * * * ***** ** *
* ** * * ** * *** * * *
* ** ** * ****** ** ** * * * *
* * ** ***** * * * * *
** ** * *** * ** * * * * *** ** **** *
** * * ***** ** **** * *** *
** ** ** * ** **** ** * * * * *** * * * **
* ** * *** ** * ** * * * *
*** * * * * * **** * * * * ** * ** *** ** **** ***
** * ** ** ** ** *** ** **
******* * ** ** **** **** ** ** ** * * * ** ** ** * *** ISBN");
    else
* **** **** * *** ** ** *** * * *** ** *** * ISBN");
}
answered by (-32 points)
edited by
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong 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,b,c,d,e,f,g,h,i,j,k,l,m;
** *** * * *** *** ** ** ** * ** * ** * * **** * ** * * * ** * * * *** * ** * ***** ** * ** ** * **** ** ** * * * * * **
* * ** * *** ** * ** *** * * * * ** * * ** **** *
** *** ***** *** * *** *
********** ** * * ** * ** ** **** * ** * **** *** **** * ISBN");
* ** ** * * *
** * *** *** ***
    {
* * * **** ** * * ** * ****** * * * * * ISBN");
* * **** * * * **
}
answered by (-214 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)
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,b,c,d,e,f,g,h,i,j,k,l;
********* ** * * * ** m;
**** * ** * n;
** ** * * * **** ** * * * ** ** * * * * * ** ** **** ** *** * * * ***** * ** * * * * ** * *** * * * ** ** ** **** ** *****
*** *** ** * * * ****** * * * ** ** ** ** *
*** ** * ** ******* * ***
* *** ** * * * * ** ** ***
***** * ** * ** ** *** * **
** ** * * ** ** ** * * * *** ********** *** *** *** * ** * * ** ** * ISBN");
    }
* * *** * **** ** *
    {
*** * ** * *** *** * * *** *** * **** **** **** * * ISBN");
* * * * * * ** *** * **
}
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>
#include <stdlib.h>

int main()
{
* * * * * * * * ** a,b,c,d,e,f,g,h,i,j,k,l,m,n,o;
** * * ** **** * * * * * ** * ** * * ***** * **** * * * ** * ***** ********** ** * *** ** * * *** * * * ** ** *****
**** *** *** ** * ** * ***** ***
* * * ******** ******* * *
** *** *** ** *** * * *
****** * **** * * * ** *** ** * **** ***** * *** * 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
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
*** ** ***** **** ** ** *** n1,n2,n3,n4,n5,n6,n7,n8,n9,n10,n11,n12,n13, sum;

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

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

** * * ** * * * * * * *** *
* *** ** * ** * ** ** ** ** ********** * *** *** 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()

{
    int * ** * ** ****** *** * **
* *** ***** ** ** * * * *** ****** * **** **** * ** * * ** *** * * * * *** *** * *** * *** ** * ** * * * * ** *** **** ** * ** * *** * * * *

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

*** * * *** * * * ***** * *
* *** *** ** * ** * * * * *** 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
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:104.23.243.108
©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
| 8.3k views
1 like 1 dislike
49 answers
[Exam] asked Nov 15, 2017 in Midterm by thopd (12.1k points)
ID: 32706 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 13.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users