1 like 1 dislike
1.6k 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
| 1.6k 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:172.70.100.188
©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
| 2.6k views
12,783 questions
183,443 answers
172,219 comments
4,824 users