2 like 0 dislike
16.5k 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 | 16.5k 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:172.69.17.59
©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
| 6.6k 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
| 10.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users