2 like 0 dislike
2.4k 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 | 2.4k 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:172.69.58.146
©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
| 1k 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