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:108.162.216.240
©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 | 16.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users