Midterm Question 2

1 like 1 dislike
6.1k 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 | 6.1k 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:172.71.254.71
©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 | 3.9k 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 | 10.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users