2 like 0 dislike
5.9k 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 | 5.9k 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:172.71.254.55
©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
| 2.3k 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
| 3.5k views
12,783 questions
183,443 answers
172,219 comments
4,824 users