Midterm Question 2

1 like 1 dislike
9.1k 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 | 9.1k 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:172.69.130.70
©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 | 6.1k 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 | 14.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users