Midterm Question 2

1 like 1 dislike
8.6k 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 | 8.6k 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:172.71.255.49
©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 | 5.7k 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 | 14k views
12,783 questions
183,442 answers
172,219 comments
4,824 users