2 like 0 dislike
10.8k 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 | 10.8k 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:108.162.216.206
©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
| 4.2k 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
| 6.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users