1 like 1 dislike
1.4k 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

 

[Exam] asked in Midterm by (12.1k points)
ID: 32706 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 1.4k views

49 Answers

0 like 0 dislike
Hidden content!
**** * *** *

int main(){

** *** * * ** *** **** ** **** * *

* *** * * ** ** ** ** * ***** ** ******** ** * * * ****** ** * ***** **** * ** ** ** **** * * * ** **** * * ** ***** *** * * * *
* * ** * * * ** *** * ** *
** ***** ***** * ** * **

* ** * ***** ** * * printf("Valid ISBN");

***** **** * **** **** printf("Invalid ISBN");


return 0;
}
answered by (-301 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)
edited by
0 0
Case 0: Wrong output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 0
Case 0: Wrong output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct 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*1 + b*3 + c*1 + d*3 + e*1 + f*3 + g*1 + h*3 + i*1 + j*3 + k*1 + l*3);
* ****** ** * ** ** * *** = 10 - (sum%10);
* ** * ** ******* ** ** *******
* ** * * * * * ** * * * ** * * * * * *** ** * ** *** *** ** ISBN");
* * * * * *** ** *** ** * **
* * * ** ** *** ** * ** * ** * * * * **** *** **** * ISBN");
*** ** ****** ***** 0;
}
answered
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 a,b,c,d,e,f,
* *** ***** ** * ** * ** ** ** * * ** ** ***
* *** * * ** * *** *** * ** * * *** * ***
** * ** *** * ** ** *** ** ** * * * * ** * * ** * * ** **** * *** ** ** *** ** ** *** ** *** * ** * * * ** * * ***** * * * * * * *** *
* * * ** * * *** * *** * **** *** * ** * * *** ** * ** *
* * ** * * ** ** * * * * * * ** * *
* *** * *** *** * * ** ***
* * *** ** ** * ** * * ***
* * ** * *** ** * * * ** **** *** ***** **** ISBN");
    }
* ** ** * *** * * * * *
* * **** * ** * * **** * * * * * * ** * * ISBN");
    }
*** ** **** * * *** * * 0;
}
answered by (54 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 *** ** * *** *

int main()
{
* * * ** * * *********** *** * * *****
*** *** *** * *** ** * * ** ***** * * * * * * ** *** **** ** * ** ** * * ** * ** * ** ***** *** * * *** ********** * *** ***
**** * * ** * = 10 - ((a + c + e + g + i + k) + (b + d + f + h + j + l)*3)%10;
*** *** *** ** ** * * == m)
**** * ** **** * *** ** ***** * **** * *** ** * *** ** ISBN");
** * * ** * * *** *
**** ** ** ****** * ** * ** * ***** *** ** *** *** * ISBN");

** *** ** * * * *** * *** * 0;
}
answered by (-255 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(){
*** * * ** *** *** i=0,sum=0;
* * * * ** * ** * * isbn[12],check;
* *** * **** * * *** *** * * ** *
*** ** * ****** * **** * * ***** ** * ****** * * ** ** * * *
* * **** ** * * ** ** **
* * * *** * * **** ** * * * * * * ** * *

* * ** * ** * *
*** ** **** **** ** *** * **** ***
*** ** * * * * * * * * * * *** * * * *** ** *** *
    }

* * ** *** * *
***** ** ******** * * ** * * ** ** *** *
*** *** ** *** * *** ** ***** **** * * * * *
* *** * * * *

**** *** * * * ** * * * * * ** printf("Valid ISBN");
* ** **** ** ** * * * * printf("Invalid ISBN");

* * *** * * * * * ** 0;
}
answered by (-116 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()

{
** * ****** ** ** * *** ** * * * * ** * * **
* ** * ** * * **** * * * ***** * *** * * * * ** * ** * ** * * ** ** * * * * *** **** ** *** *** ** * * * ** * * * *** *** * * **

* * ** *** * * *** *** * * ** ** * * ****** * *** * * ***** *** *
*** ***** *** * * * ** ** *** **** ** *

** ** * * * * ** * * (check==last)
    {
* *** * * * * ** * * * * ** *** **** * *** * 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
0 like 0 dislike
Hidden content!
#include <stdio.h>
int main()
{
    int ** ** ** ** * * ** * * ***** ***
** *** * * * * ** ** * * * **** ** * *** * **** **** * ** * ** * *** **** ** *** * * * * ***** **** ** * **** * * ** * **** ***** * ** ***
* ** ** *** * ****** **** ** ** * ** * *** * ** ** *** * *
* * ** * *** ** * ** ** * **** **

** *** ** * * ** ** * ** ***
* ** * * * ** * * ********* *** **** ** * * * ** ****** ISBN");
*** **** * **** *** * * printf("Invalid ISBN");

** * *** * ***** ****** 0;
}
answered by (-196 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;
***** *** *** *** * * * ** ***** * **** *** * **** ** * * ******* *** ** * **** * * ** ** ** ** * * * * * ********* ****** **** ** *
* * ********* ** ****** * *
*** ** * * ** * * * *** *** *** * * **
*** *** * * *** *** ** ******
** **** * * * * *** * * * * * ** *** *** ** * * * 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
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:162.158.154.38
©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
2 like 0 dislike
77 answers
[Exercise] Coding (C) - asked Oct 19, 2017 in Chapter 5: Selection Statements by thopd (12.1k points)
ID: 27667 - Available when: Unlimited - Due to: Unlimited
| 2.3k views
12,783 questions
183,443 answers
172,219 comments
4,824 users