Midterm Question 2

1 like 1 dislike
10.8k 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 | 10.8k 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:172.69.7.59
©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 | 6.9k 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 | 17.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users