1 like 1 dislike
1.8k 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

 

[Exam] asked in Midterm by (12.1k points)
ID: 32706 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 1.8k 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:172.70.134.15
©2016-2023

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
| 1.2k 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
| 2.9k views
14,435 questions
231,459 answers
206,247 comments
5,490 users