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:172.69.7.45
©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