Midterm Question 2

1 like 1 dislike
12.3k 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 | 12.3k 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 | 7.7k 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 | 19.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users