2 like 0 dislike
14k 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 | 14k 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:172.70.131.11
©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
| 5.7k 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
| 8.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users