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:108.162.216.107
©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 | 4.5k 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 | 11.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users