Midterm Question 2

1 like 1 dislike
9.7k 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 | 9.7k 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:172.70.50.26
©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 | 6.3k 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 | 15.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users