Midterm Question 2

1 like 1 dislike
7.2k 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 | 7.2k 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:172.70.126.38
©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 | 4.7k 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 | 12k views
12,783 questions
183,442 answers
172,219 comments
4,824 users