1 like 1 dislike
1.8k 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
| 1.8k 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:172.70.178.47
©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
| 1.1k 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
| 2.8k views
12,783 questions
183,443 answers
172,219 comments
4,824 users