Midterm Question 2

1 like 1 dislike
13.5k 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 | 13.5k 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:162.159.115.9
©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 | 8.3k 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 | 20.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users