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:172.71.1.145
©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 | 4.4k 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 | 11.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users