Midterm Question 2

1 like 1 dislike
13.2k 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 | 13.2k 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:104.23.197.95
©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 | 8.2k 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 | 20.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users