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:172.69.59.145
©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