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:172.70.131.134
©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