2 like 0 dislike
2.6k 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

 

[Exercise] Coding (C) - asked in Chapter 5: Selection Statements by (12.1k points)
ID: 27667 - Available when: Unlimited - Due to: Unlimited

edited by | 2.6k 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:172.69.58.159
©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