Midterm Question 2

1 like 1 dislike
12.2k 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 | 12.2k 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:104.23.243.109
©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 | 7.7k 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 | 19k views
12,783 questions
183,442 answers
172,219 comments
4,824 users