Midterm Question 2

1 like 1 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

 

[Exam] asked in Midterm by (12.1k points)
ID: 32706 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 10.8k views

49 Answers

0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include    * * * **  **   **

int ISBN[13];
int sum;
int checkdigit;
int main()
{
*****  ** *  * *  *   *    **   *  * ** ** *  *    *    ***** * * * *** *  * ** *  *    * **  **  *        *** ****  * *   ** * *****   *  *  *  ** ***   *   ****    *  **    ********  *        **   ***  * *  


   * *   *       * * *** *    * = ***   ********** ** *** **   *    *****   *** **     **   *         ****

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

       ** ***** ** * ***  *    0;
}
answered by (-286 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
*  * * * *** * ** * *     a,b,c,d,e;
* **   ** ***          * *   f,g,h,i,j;
  * **   * **   ** *  ** k,l,m,z;
      **    * ****  **  **** *      * **   *   ****      ***  *  *  ****   * ** * ***** *   ****   *     * * * * ***  **  ***  * *     *  ****    *****  ** *   
**   *  * * *   * *     *    *** * ****  **  *****   *
 **   * ******* * ** * *** (z==m)
*  *  ** ***** ** ** *  * ***
* * ***  * ** ***  *   * * *  *    ** *  ********  *  *  *  *   **   * ISBN");
    }
   *    **  *  *  *  **  ***  
**  *  ***   **  **  
** ** ***********  **  **   * *** ** *   **** ** *  **  *      * *  *  ** ISBN");
    }
**      *  ***** ** *     ** * 0;
}
answered by (-229 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
//isbn number
int main(void)
{
* *****  * ** **  * ***     * * *   ** *  *  *  *** *      *    
 *  * **  ** *** * **   ***** * ***  ** **  ** *  **      * ** *  ****** ***   ** ***  ** ****  *    **  * ***   * *   *  * ** * *****  ** **  ***     ** **    * ** **  *  *    **
  *   ** *** * ** **** *        ******* ** ***    *  
 *  *  *** **  * **  * * *   * ** *  * 
*********   *     * * ******  **   * 
 * **** ***  *  ** * ***  *  ** *  *  ** *   *******  ****  *     *  *** * ISBN");

*  * * * ** *** *** ***     **** printf("Invalid ISBN");
*  **     *  ** ***** ******* **** 0;
}
answered by (-304 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main(void)
{
* * ****  * * *   * ******* ***  ** **** **   * **** **    * **  * 
 *  * *  * * *  * ** ** * ****** **   * ** ***     **  * ** **   **  *   **** * * ****** *   * *** ** * * * * **** *  *****   **** ** * *  *  ** *    ****** **  ***** ***** *  *** *    *

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

*  *  *  * * ****   *   ** * ****  * *** 
* *** *    ***  *   * *      ***
* ** **   *****  ** * * *  ** *    * ******** * *** * * *  *  **  *  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
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
 *****    *** *  * ***      * *  *     **  *** ** 
***   *  * * **    * * *    ** ***       ****** **  *   ***** *    
*  *   *    ***   **  ** ****  *** * *     ** * ** **** * *    
  *** * *  **  * * * * *** ****  **
*  *****  ** * *  *  * * ** ***  (m==o)
  ***** ***  ** ** * * *  ******    **  *   ** ISBN\n");
* ** ** ** ****** *****  ***

** ** ***   * * ** ** ****    *** 0;
}
answered by (-284 points)
0 0
prog.c: In function 'main':
prog.c:7:13: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
     scanf("%d",a,b,c,d,e,f,g,h,i,j,k,l,m);
             ^
prog.c:7:11: warning: too many arguments for format [-Wformat-extra-args]
     scanf("%d",a,b,c,d,e,f,g,h,i,j,k,l,m);
           ^~~~
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include    **  *  ***    ** 
#include ***     **  *

int main()
{
*  ****   **  * ** **  a, b, c, d, e, f, g, h, i, j, k, l, m;

       *    ****   *** *  *  total = 0;

  * * ** ***   ** * *** *** check = 0;

  ***** * ***   *  ** *  * **  * ** ** **        * ***   **   *  **   * ** *       *  ** **   *       *  **** *  * *   *     ***  *  **    *     * &j,      * ** **    ****

*** * **  * * *   *   ** *  ** *  = a*1 + b*3 + c*1 + d*3 + e*1 + f*3 + g*1 + h*3 + i*1 + j*3 + k*1 + l*3;

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

** ***** **  *** *    * * ***  **  * = m)
** ** **  *  **  * ****  *  **
 **  * ** **** **** *   ** * * * *** ** ** * **  *  *    *  **  ** *   ***
    * *    *     * * * * *  *  
 **   ** *    * **** ** * * 
***  *  ** *  * ***** 
 *    ** *   **    * ** *****  * *   * * *  *** *  * *    *      *   *     * ** **   
** *  * * **      ** ***   
}
35/100 answered by (-285 points)
0 0
prog.c: In function 'main':
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
     scanf("%0d%0d%0d%0d%0d%0d%0d%0d%0d%0d%0d%0d%0d", &a, &b, &c, &d, &e, &f, &g, &h, &i, &j, &k, &l, &m);
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main()
{
  *  ****** *    * * * ** **  **  * * *  **   * ** ** * ***         ****
* *   ***  ******* * *  ** *  *  *
   *****  * ******   *  ***  ** *       **   ** * *  * *  ***  ** *  **    **     **    *** *  * ** ****** **** *  ****    * *** * * * *  * **** **        * *    *  * *   *  *** **
*** *      * ***   ***   * *  1*(n1+n3+n5+n7+n9+n11);
***   *  * * **  * ** * *** *** * 3*(n2+n4+n6+n8+n10+n12);
  **     ***   * *  ***  *  * *** of first 12 numbers
  ** *       **   *** *   sum1+sum2;
* ***  ** * *  *** ** **  * ***  10 - (sum3%10);
*  * *     *  * *     ** * *     check digit
 **   * ** ** ** * * **   ** *  **  *
   ** ** *  ****  ********* *
*  * *  * *  **  * **   *   *** * *       * ***** ****   * * *  ** * ** *  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
commented by (4.3k points)
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,sum=0,check;
* ***  *    *** **   *   ***  ***** *****  * ** *** *   ***      * *  ** *  *** *  * * **    ** * ** ********     *    *  *** *   **  * *   **  ** **  *  **      ** *   * * **

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

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

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

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

* *  *** * *  ***    *  * *  0;
}
answered by (-127 points)
0 0
prog.c: In function 'main':
prog.c:7:51: warning: spurious trailing '%' in format [-Wformat=]
     scanf("%1d%1d%1d%1d%1d%1d%1d%1d%1d%1d%1d%1d%1d%",&a,&b,&c,&d,&e,&f,&g,&h,&i,&j,&k,&l,&m);
                                                   ^
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main()
{
 *********   * * **      a,b,c,d,e,f,g,h,i,j,k,l,m,sum,che;
*****  **  ****  *  **  *  **  **  * ***  **  * ** * ***     ***   * **      **  * * *    **   *** *  ***  * * * * ** **   * ****  **     ** ***   ** * * ****   ********
* * *****  *  ******* *** ** *  ******  * *****  ***  * * *  
*   *  ***   **   *      *** ***  *** * 
 *   **   *   ***    ***      *   (che==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
commented by (4.3k points)
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 (-255 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.17.67
©2016-2026

Related questions

0 like 0 dislike
26 answers
Midterm Question 2 - Makeup
[Exam] asked Dec 9, 2017 in Midterm by thopd (12.1k points)
ID: 36751 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 6.9k views
2 like 0 dislike
77 answers
10-19 Exercise 1: International Standard Book Number (ISBN)
[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 | 17.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users