Midterm Question 2

1 like 1 dislike
8.6k 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 | 8.6k 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:172.71.255.49
©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 | 5.7k 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 | 14k views
12,783 questions
183,442 answers
172,219 comments
4,824 users