1 like 1 dislike
7.2k 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

 

[Exam] asked in Midterm by (12.1k points)
ID: 32706 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 7.2k views

49 Answers

0 like 0 dislike
Hidden content!
#include ** * ** * ***
#include * * **** * *

int main()
{
** ** * *** ** ** * ***** * *** *
********* ****** ** ***** ** *** ** ***** ***** ** *** ** ** *** * *** * ** ** ***** * * ***** ***** * * *** *** ** ** ***** * ** *
* ** ** * ***** * * ** + b*3 + c*1 + d*3 + e*1 + f*3 + g*1 + h*3 + i*1 + j*3 + k*1 + l*3;
** **** *** * ** ** *** * *** **
* ** * * ** ** ** * ** (ans==m)
* *** *** ** * ** *** * *** ISBN");
* * ** * ** * * * * **
* **** * * * *** ** * ** **** * * ISBN");
** * * *** * ** ** * * * 0;
}
answered by (-258 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 ****** *** *

int main()
{
* ** **** * * whole;

* ** ** *** * *** * ** * * ** ** **
** * ** * * * * ** **** ** ** * * *** * * ** ** ** * * **** ** *** * * *** ** * ** &n6, &n7, &n8, &n9, &n10, * * *** * ** &n13);



whole = ** ** ** ** ** * * * * ***** **** *** * *

int temp = whole%10;


if ******
* ** * *** * ** * *
** * * * * * * * * ******* * * * * * ****** ** ** ** ISBN");
** * * ***** ** ** **
* *** ****** * *** * *
** ** * ****** *** * ****
**** ******** ** ** * *** *** * * ** ** ***** ** * **** * ** *** * ** ISBN");
** **** * *** *** ** *** * **

* ** ***** * * *** * 0;
}
answered by (323 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 ** *** *** *

int main()
{
* **** **** **** whole=0;

* * *** ********* * * *** ** * * * * ***
**** *** *** ******* *** ** *** ** ** ** * ****** * ** **** ** * ****** * * * * * &n6, &n7, &n8, &n9, &n10, * * ** * *** &n13);



whole = ** ** *** * * * * *** *** * *** * * ** ** *



if ((10-(whole%10))==n13)
** * *** * * ***** *
* ******** * * ** * *** ** * ** ** ** * ** * ** * * ISBN");
* ***** * ** * ***
* ** * * * ***** **
* * * * ****** ***** ** * **
* * * * ** *** * **** **** * * *** * * * **** ** * *** ISBN");
** ** **** ** * * * ** *

******* * *** *** ** * ** * 0;
}
answered by (323 points)
0 0
prog.c: In function 'main':
prog.c:8:11: warning: too many arguments for format [-Wformat-extra-args]
     scanf("%1d1d1d1d1d1d1d1d1d1d1d1d1d", &n1,&n2,&n3,&n4,&n5, &n6, &n7, &n8, &n9, &n10, &n11,&n12, &n13);
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0 like 0 dislike
Hidden content!
* * * *** ** *** *
main()
{
long int *** ** ** ** *
***** * *** input * ** *** *
***** ** ** ** ** *
if * ****** * ***
* **** * * * * ** * * * ** * **
if *** **
* *** * * *** ** * * ** ** * ** **** ***

* * * **** *
* ** * * ** ** * * *
** * * * ** * **
* * ** * *
** ** * ** * **** *****
* **** ** * *
* ** * **** **
** * * *
**** * * **
** **** **
** * ** * **
m==a%100/10;//2
n==a%10;//1

* ** ******* * * * *
o==10-(sum%10);

if (n = o)
{
* ** * ***** * ****** * * ** * ISBN");
}
if (n != o)
{
* ** ** **** * *** * **** ** ISBN");
}
return 0;
}
answered by (-32 points)
0 0
prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~
0 like 0 dislike
Hidden content!
#include *** * ** *

int main(){
** * * * * long long int n;
** **   int temp=0;
** *   int n1=0,n2=0;
*** * * * int value[13];
* *** **   int i,j;
* ***   int check;
* ***   int value2;

* * **   ** * * * **** *

** * ** * for(i = 0; i < 13; i++){
* **** * ** * ** * * * *** ** * ** *** * * * = n%10;
* * *** ***** ** * ** ******* * * * * = temp*3;
** * ***** * ** * *** * * ** * ** * * * * ** * ** *

* * ******* * ** ** * * * * * *** * = n%10;
***** ** ** * * * ** *** ** ****** * * = temp;
* ** *** * * **** * ** * ***** **** ***
*** * ** ** ** * * ** ** ** ** * *** * ** * = * * * *
* ** ****** ** ** * ** *** * * * * ** **** *
  }
** ** * * ** *** *** ** * * * * value2);

* *** ** * *** ** * * **** ** *

*** * * *** ** ** *** *
* * *** * ** ** *** * * ** * ************ ** * ** ** * *** * ***
* **** * * *** ** * *
* * * * **** ****** * * ** * * ** *** *** *** * **


** * *   return 0;
}
30/100 answered
0 0
prog.c: In function 'main':
prog.c:12:10: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'long long int *' [-Wformat=]
  scanf("%d", &n);
          ^
0 like 0 dislike
Hidden content!
#include ** ** ** *
int main ()
{
* * * *** * * ** * * a;
**** * * * ** ******* * * * * * ** *
**** * * *** * * ** * ** * * ** * **
* * ** ** * 0;
}
answered
0 0
prog.c: In function 'main':
prog.c:5:10: warning: too many arguments for format [-Wformat-extra-args]
    scanf("number",&a);
          ^~~~~~~~
prog.c:6:11: warning: too many arguments for format [-Wformat-extra-args]
    printf("Valid ISBM",a);
           ^~~~~~~~~~~~
0 like 0 dislike
Hidden content!
#include<stdio.h>
int main()
{
**** * ** * ** ***** a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, sum1,sum2, sum3, check;
* * ** *** * * * * ** * ** * ** ** * * ** * * ** * * * * * * ****** * * * ** ** * * ** * ***** ** **** ** * **** *** * *** ** * ** * * *

****** ****** * **** *** *** ** ** *
* *** * * *** * * * ** * * * * ** *

** * ** **** ** * * * *** * sum1+sum2;
*** * * ** ** * ****** ** 10 - (sum3%10);

* **** * ** * *** ** **** **
** ** * ** ********
** ** *** * *** ** ** * * * * *** * *** ** * **** ** ISBN");
* * ***** *** * * *
* ** ***** *** * *****
* * * ** * *** **** * **
* ** * * * ** * * * * *** ** **** ***** ** ** * ** * ** IBSN");
**** ** ** ** ** **

*** *** * * * ******* 0;
}
20/100 answered by (-233 points)
0 0
prog.c: In function 'main':
prog.c:5:14: warning: format '%ld' expects argument of type 'long int *', but argument 2 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
              ^
prog.c:5:17: warning: format '%ld' expects argument of type 'long int *', but argument 3 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                 ^
prog.c:5:20: warning: format '%ld' expects argument of type 'long int *', but argument 4 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                    ^
prog.c:5:23: warning: format '%ld' expects argument of type 'long int *', but argument 5 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                       ^
prog.c:5:26: warning: format '%ld' expects argument of type 'long int *', but argument 6 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                          ^
prog.c:5:29: warning: format '%ld' expects argument of type 'long int *', but argument 7 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                             ^
prog.c:5:32: warning: format '%ld' expects argument of type 'long int *', but argument 8 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                ^
prog.c:5:35: warning: format '%ld' expects argument of type 'long int *', but argument 9 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                   ^
prog.c:5:38: warning: format '%ld' expects argument of type 'long int *', but argument 10 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                      ^
prog.c:5:41: warning: format '%ld' expects argument of type 'long int *', but argument 11 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                         ^
prog.c:5:44: warning: format '%ld' expects argument of type 'long int *', but argument 12 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                            ^
prog.c:5:47: warning: format '%ld' expects argument of type 'long int *', but argument 13 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                               ^
prog.c:5:50: warning: format '%ld' expects argument of type 'long int *', but argument 14 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                                  ^
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{

** ** * ** *** *** * * * * isbn;
** *** **** * * * ** ** * * s1;
* ***** *** ** ** ** ** s2;
* *** ***** * ** ** s3;
* *** ** * ** * s4;
* ** ** * ****** * s5;
* * ** **** * ** s6;
* * * ***** *** * ** * ** s7;
** * * ******* ** * s8;
** * * ******* * * *** s9;
** ** **** **** * * s10;
* ***** *** * ** ** * * s11;
* ****** *** ***** s12;
* ** * * ** * ** * * s13;
    int check;
* ** **** *** * * * * sum;

** * * ** * * * * ** **** * ** * * ** **

**** * ** ** * *** * * ** * *
* * * * * * *** ***** *** ** * * *
** * * * * *** * * ** * * **
* *** * * * * ** * * ** *** **** * * * ***
**** *** ** * **** ** * * ** * ** * ** * *
* **** * * * * * *** * * ***** ** **
** * * **** * * * ***** ** *** * *** **
* * * ****** * * * ** ** ** *** ** **
** *** * ** ** * ***** * ** * *
* * * ** * **** ***** ***** ** **
* * **** * ** ** ** **** * * ***
* *** * * ** *** * ** ** ** **
* ** *** * **** ** ** ** ** ** *

*** * *** * * *** * * * * **** ** *** * ****

** ** ** ** * * *** * =(10-(sum%10));

* * **** * * * ** *** == s13)
    {
**** * ** * * * * * ** * * * ***** * ***** * ** ISBN");
    }

** ** *** *** **
    {
*** * ** * *** **** * ** *** * *** ** *** * * * ** ISBN");
    }

** * * * * ** ** ***** *** * * * * * * * *** * * *** * 0;
    }
answered by (-193 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>
#include <conio.h>

int main()
{

** * * * ** * ****** ** * * isbn;
* * * * * ************ * * s1;
** * ***** * * ** * ** ** s2;
* **** * * ** * s3;
** ** ** ** *** s4;
** * * ** *** * **** ** * s5;
* * *** * * ** * ** * * s6;
* * * **** * *** * *** * s7;
* *** * * **** ****** * * s8;
** * *** ** * * * ** * * ** s9;
*** ** ** * * * * * * s10;
** * ** * *** *** s11;
** ** ** ** * ** * *** s12;
* * **** ** **** * *** *** *** s13;
* ** *** * **** * * * * * check;
    int sum;

*** * **** ** **** ** * * * * * &isbn);

* * ***** * * ** * * * * ** * ** *
** * ** * *** ** * *** * * ** * ** * ******** * * ** *
*** * * ** * * * ** * * * **** ********
**** * ** ** * * *** **** * * *** ***
** * *** ** * * * * * * * ** * *** ***
* ** **** **** ** *** **** **** * ** *
* * ** **** *** ** ** * ******* **
* * * *** * ** * ** * **** * * *
** ** * ** * *** * * *
* *** * ** **** * * * * * *
**** * *** *** **** * * **** *
* ** ** * * *** * * * ** * * ** *****
* * * * * ** *** * * * *** * * ****** *

*** ** ** * * * **** ** * *** * * * * * * ***

* ** * *** * * ** * *** *

* * ** * * * ** * * * * * ** == s13)
    {
** * * *** ** * ***** *** * * ****** ** ********** * ** ISBN");
    }

**** ***** * * * *** ** **
    {
** * ** * ** *** ** * * * ** **** * *** * * ISBN");
    }

*** ** * ** ** *** * *** * *** ** * * * * 0;
    }
answered by (-193 points)
0 0
prog.c:2:19: fatal error: conio.h: No such file or directory
 #include <conio.h>
                   ^
compilation terminated.
0 like 0 dislike
Hidden content!
#include<stdio.h>
int main(void)
{
    int n1,n2,n3,n4,n5,n6,n7,n8,n9,n10,n11,n12,n13,sum,check;
** ** ****** ***** * *** * *** * ** ** ** ** ******* * * * * ** * * * * * * * * * * ** ** * * ***** *** * ** * * ** *** * * * * * ** * * ** * * *

*** ** * * * ** * *** ***** * *** *** * ** * **** *** ** *
*** ** ** * ** * * *** ** *

** *** * * *** *** *** ****
    {
* * * * **** * * ** ** ** ** * ** ***** * *** **
    }

* *** **** * ** * * ** * * * * * * * * * * * *******
** * *** ** * * * * **** *** * ****
** * * ** ***** * *** ****** *** * *** ** * ** * * * **** * *** * ** * ** **** * * ISBN");
** * **** * * *** ** **** * ** ** *** * *
** **** * * * * * * *** ** * * ******* * * **
*** *** * * ** *** ** ** **** ** * * ** *** *
* ** ***** ** ** * *** ***** * * * **** * ** ** * * * * *** *** * ** ***** * * ISBN");
* * * * ****** * ** *** ** ** **** * **
return 0;

}
answered by (-249 points)
0 0
Case 0: Wrong output
Case 1: Wrong 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:172.70.179.216
©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
| 4.7k views
2 like 0 dislike
77 answers
[Exercise] Coding (C) - asked Oct 19, 2017 in Chapter 5: Selection Statements by thopd (12.1k points)
ID: 27667 - Available when: Unlimited - Due to: Unlimited
| 12k views
12,783 questions
183,442 answers
172,219 comments
4,824 users