Midterm Question 2 - Makeup

0 like 0 dislike
6.9k 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: 36751 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 6.9k views

26 Answers

0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main(void)
{
*    *** *  *  *  **  * *   a,b,c,d,e,f,g,h,i,j,k,l,m;
 **  * *   **  ** ****  * * *  **** *  ***  ** ** **  *   **  **** ***    *****  ** ***  ***  *     *  ****** ******     *** *      * **** **     ** ***   *    *  *****

* *  * * *  * *  ** * check,sum;
     **** ** *  * *  *  **        ****   *     **   * 
***  ** * ***     *     ******   *  ******   * **** * * * ** ** ***
 ** *   ** *    ***  **    **  **   *

*   *    *****     ** * * * ** * 
 ****  *     **** **** * * *
*  *     **** ** ** *   *  ***  **  * *     *   ** * ***  
   **** *  * ** *  **  ****

    



**** ** **  *  **  **** * * ***  *  != m)
** *****    * **     *   *      
    **  ** * **** **    * *  ***   ** * *    ** * * *  ** *  ** * * ISBN");
** ** ** *  *   * * *  **
 * ****  *  * **   * * *** * *
 ****    * *** *  *  ** *    **
* ***** * ** *  *  *  * *   ****   ****   *  ****** ** ISBN");
    }

return 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
int main()
{
   int  ***  *   * *  ***** * ** ** **

   * *** *    *  ***     * **   * %1d %1d %1d %1d %1d %1d %1d %1d %1d %1d %1d   *  *    * * * * * *  *  ***   * * **  ****       *         *  *  *    ***  ** **  ***  ** * * *  **** ****  * ;

***   * *   * ** *** **      ***     *     ** ****    ***  **** *   *    ****   * *  *** *

 *** * ** ****  *  *  ***  **  ** *
  *  * * ** *   **    ** *** *** *  **   ** ISBN");}
  *   *  **  * * ****  *  **  
** *  * ***    **  ** * *   **   *   *  ***   *  * *  ***     *   * ISBN");
   *  *   *   **** ** *
*** * * ** **   * **  * ** * 0;
}
answered by (42 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()
{
   int * **** * **  ****  *       ****  

  * **** *  * *   *   **   ** *** %1d %1d %1d %1d %1d %1d %1d %1d %1d %1d %1d  *      * * * *   ***  **  * * ***  *  * **  *    * *  *          * **   ****  *  * ** ***** ****          ** *  * ;

     ****   *   * ** * **     * ***   * ** ** * *** ******* *    **       * *** **  * **

*  * ** *    **    *   ** 
 *  *   **    * ** ******      *   *  ** *   ISBN");}
*******   *****  *    *** 
    ***** **    ***  *  ** * * ** *    * * * * *   ***  *    *  *** *  ISBN");
  * * ** *   ***   *  ** ** ** 
         **   * * ** **   *  0;
}
answered by (-167 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)
{
*  *** * * ****** * * *** ***   a,b,c,d,e,f,g,h,i,j,k,l,m;
   * * * **** ******    *   * * * * **   ** ****  ** **    **   ****** **      ****** ***  *    **  *  * * **** *   * *  * ** **  **   *  **** *       * * * *  ** **  ***

* **      ** * ********    ***  * * check,sum;
 *****  ***       *  *  ** *** ** * * * *   *** * *    
**** *** *  **  *    * * *  *** ****  **  * * * ** * ** *   *
 * *   *** * ** ***** *** ****** * * ***

*  * ** * *  ** *  ** *** *** ** **  *
***  ***  *     **** *****
  * * **   *    *  *** ***  **  * ******   *  * **  * *
    }



    ** **** *  ** * * * * *** != m)
    {
 *********  ***  ******  ***   **  ***   *  *    *    *  ****  * **   ISBN");
******  **     *  ****  * *  **
** *   *   ** ** * ** 
 *  * *  ***  **  **  * *   
* ** ** * *** ** **** * *  *  *   *** *** *   *  *    **  * *  ISBN");
 * ** **   **   **    ** * * **  

return 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main(void)
{
** *     *** ********* * **  ** a,b,c,d,e,f,g,h,i,j,k,l,m;
     * * *  ** *** *     *   *   **   **    *  * *   **    *  *  **    *  ****      *      *  *********    ** *  * *  *   *** **** *    *  * **  * * **  *  ***    ******* *

* ** **   **  ** * ** ****** check,sum;
** * **      * * * * ***   * ** * ** *  **  ***  *   
** * *     **** * *  *  **         **** * ** * *   
   **  **     ** **** ***** **   * **  *

*  **********  *** ** *  *    * *
  *    *   **   ***  **   **
 * * *  ****  *  *** **  * *  ***      * *   **   * * **
    }



* **  *  ***** *  *  **  **** != m)
    {
  * ****** *** **  **   ** *** * * **** * **      ** ********* * **      ISBN");
*   ******* ** **  *     **  
* ***    **  * * *    **  *
** ** **  *     **** * * ***  *
 ***** *   * ** ** **  *   ***   ** * ***     ** **  *****  *  ISBN");
***  *  * * ** ****  ******  * **

return 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main(void)
{
 * ** *  *** **   *  * * * ****  a,b,c,d,e,f,g,h,i,j,k,l,m;
*    **  *   ** **  *     *   * **   *   ** ** *** **   * **  * * * *  *  *** **  *** * **  ***  * ***   * *   *****  *  *    **  * * *** * * *    *  *  ** * ***********

* *** ***    ** **    **  ** check,sum;
* ** *  **  ** *  **  *            * *  *  **  *  * *
 * *   ** ** *  * *     **  ** **   **  *  *   **      ** *  ***  * ***
**    *******      *   *    * * *****
    


**  ****** ** *** **  *   ** * * *   != m)
* * * * **  *  * * *** * *** *
* **** **  ** *  * * ****** * * ******* **  * * **   **  *** *  *  ISBN");
   **  * * * * *  *   
*  ************   * *  **  * *  *  
 ****   *   * * **** **** *  
**** * * * *   ** *****     ** * * *    *  ** *** *  *  * * ISBN");
 * *** *  *  ** * *  **** ** *   *
    
return 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include **** ** *   ***

int main()
{
    ***       ** *  ** ** a;
* *  * * **  *   *  ** ***  ********   **
  *  * *   **** *   **   * *  *  *  **** ** *  
 *  *     * **  * ***    0;
}
answered
0 0
prog.c: In function 'main':
prog.c:6:10: warning: too many arguments for format [-Wformat-extra-args]
    scanf("a",&a);
          ^~~
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main(void)
{
** *   **   * ***   **  *  *  a,b,c,d,e,f,g,h,i,j,k,l,m;
 *    *  * *        * *  *****   * ***  * ** ** **  ***  * * *  ** * * **         **   **  **** *  * *** **** *   **  * **** *** **   *** ***      *    *** * 

   **   *   **    * ** *** check,sum;
 **** * *   * ****  **** **  * *  *** * **** * ** * ** **
*  *  * * *  ****  * **  ** **** 
    


*        ****     **   ** * **  != m)
 *   ** *** *  *** *  **   *** 
** * ** * ** * ****         ****  ***  * ** **   ***** **   * ** *   * *** ISBN");
*   **  ** * ** ***** ** * **   
*  *  * *  **  ** * ****** *********
 ******  ********   *   * ** 
 * **       ****  ******    *     *** * *         * ISBN");
***  **    *  *    **** * *
  ** **  * *     ***        
return 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{
    int s1,s2,s3,s4,s5,s6,s7,s8,s9,s10,s11,s12,s13;
    int check;
    int sum;

      *  *  *****      *** ** *   **** *    *       * **  *      * * *  *   
* *    **     *** * ** * ** * * ****  * *   ***    * *   *   *   **  * ***  *   * * **** * ***   ** * *** *  *  * **   * ***  **  * ** * ** *   **  *** * *   *  * * * *  

* **  *** * *****  **** * ***** ***       * ** *   ******* *  ** *******  * *  * * **    *    **** ********   **  *** * ** 

    *  *  *  *  **    ******* **   **    * * *  ** **  * *  * ****

 **  ****  *     **  *** **  *   *   * **   ** **  *  ** **   (check==s13)
 * *   *   ****          * * **   **  *  *    ** *     * **** 
* **  ** * **  * * * **  *   * *** * * * **** ** ****   * *  **** ** *  *  *   * **  *** *     * *** ISBN");
 **  *       * * *   *    ** ***   * *  ***   ***** **
    ** **  ****** *     *****  * * ** **  ** **    * * *   **
 *  *   *    *  **       *    * ******* **** **  ** **  
* ***    **  **   ***  * * *  ** ** *******     ***   *  *  ***    ****** ** *  *   * ** ** *     *  *  *   ISBN");
*     **   * *    * *** **  *   *  **  ****  ** *  ****   *    

}
answered by (-193 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 ** *      *   * * 
#include   *      ** * 

int main()
{
***** **   * * *  * **  *    ** a,b,sum;
 * *     *** **    * **  *  *** *  *** **  *     *   ** * *****
**  * **  * **  **  **   ***   *  *  number;
 ****  **  ** * *  **    odd number;
* **  ****   ** * ** ** *** *  * **    
 ** ** *  * ***** *** *    *** (10-(sum%10)=last number)
* * *  **       ****  ****  * *  *   *        **    *   *    * ** *   ***** ISBN");
 **  **    * *  *** ** *   *
   *  * *   * * ****  *   *  * ** ** *        ** * ** * * *        **    *** ISBN");
***** * *   * *  **  *  * *  0;
}
answered by (-108 points)
0 0
prog.c: In function 'main':
prog.c:8:7: error: 'odd' undeclared (first use in this function)
     a=odd number;
       ^~~
prog.c:8:7: note: each undeclared identifier is reported only once for each function it appears in
prog.c:8:11: error: expected ';' before 'number'
     a=odd number;
           ^~~~~~
prog.c:9:7: error: 'not' undeclared (first use in this function)
     b=not odd number;
       ^~~
prog.c:9:11: error: expected ';' before 'odd'
     b=not odd number;
           ^~~
prog.c:10:12: error: lvalue required as left operand of assignment
     a*1+b*2=sum;
            ^
prog.c:11:21: error: 'last' undeclared (first use in this function)
     if (10-(sum%10)=last number)
                     ^~~~
prog.c:11:26: error: expected ')' before 'number'
     if (10-(sum%10)=last number)
                          ^~~~~~
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.70.50.51
©2016-2025

Related questions

1 like 1 dislike
49 answers
Midterm Question 2
[Exam] asked Nov 15, 2017 in Midterm by thopd (12.1k points)
ID: 32706 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 10.5k 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 | 16.8k views
0 like 0 dislike
15 answers
Midterm Question 6 - Makeup
[Exam] asked Dec 9, 2017 in Midterm by thopd (12.1k points)
ID: 36755 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 4.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users