Midterm Question 2

1 like 1 dislike
5k 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 | 5k 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:172.70.127.192
©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 | 3.2k 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 | 8.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users