2 like 0 dislike
13.5k 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 | 13.5k 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:104.23.253.96
©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
| 5.2k 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
| 8.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users