2 like 0 dislike
9.9k 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 | 9.9k 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:172.70.100.231
©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
| 3.8k 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
| 5.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users