2 like 0 dislike
10.8k 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 | 10.8k 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:172.70.194.171
©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
| 4.2k 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
| 6.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users