2 like 0 dislike
13.7k 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

 

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

edited by | 13.7k 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:172.69.130.71
©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
| 5.4k 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
| 8.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users