2 like 0 dislike
13.5k 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 | 13.5k 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:108.162.216.251
©2016-2025

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
| 5.2k 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
| 8.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users