2 like 0 dislike
2.3k 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 | 2.3k 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:172.69.7.165
©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
| 970 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
| 1.4k views
12,783 questions
183,443 answers
172,219 comments
4,824 users