Midterm Question 2

1 like 1 dislike
6.8k 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 | 6.8k 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:172.69.7.224
©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 | 4.4k 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 | 11.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users