Midterm Question 2

1 like 1 dislike
6.3k 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 | 6.3k 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:172.70.130.167
©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 | 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 | 10.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users