Midterm Question 2

1 like 1 dislike
10.3k 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 | 10.3k 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:172.71.120.164
©2016-2025

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 | 6.7k 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 | 16.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users