Midterm Question 2

1 like 1 dislike
5k 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 | 5k 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:172.70.126.168
©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 | 3.2k 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 | 8.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users