Midterm Question 2

1 like 1 dislike
10.2k 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 | 10.2k 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:172.69.17.66
©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 | 6.6k 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 | 16.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users