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:172.71.120.164
©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 | 10.6k 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 | 16.9k 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 | 5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users