Midterm Question 2

1 like 1 dislike
8k 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 | 8k 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:141.101.69.47
©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 | 5.1k 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 | 13.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users