Midterm Question 2

1 like 1 dislike
11.9k 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 | 11.9k 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:104.23.197.95
©2016-2026

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 | 7.5k 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 | 18.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users