Midterm Question 2

1 like 1 dislike
11.9k 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 | 11.9k 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:104.23.197.94
©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 | 7.5k 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 | 18.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users