Midterm Question 2

1 like 1 dislike
10.3k 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 | 10.3k 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:172.69.7.59
©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 | 6.7k 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 | 16.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users