2 like 0 dislike
12.6k 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 | 12.6k 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:172.70.80.151
©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
| 4.9k 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
| 7.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users