2 like 0 dislike
3.1k 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 | 3.1k 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:172.69.7.27
©2016-2024

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
| 1.2k 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
| 1.9k views
12,783 questions
183,443 answers
172,219 comments
4,824 users