2 like 0 dislike
2.7k 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 | 2.7k 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:172.71.255.11
©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
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
| 1.6k views
12,783 questions
183,443 answers
172,219 comments
4,824 users