Midterm Question 2

1 like 1 dislike
6.3k 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 | 6.3k 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:172.70.126.124
©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 | 4k 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 | 10.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users