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:172.70.126.169
©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