Midterm Question 2 - Makeup

0 like 0 dislike
8.4k 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 | 8.4k 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:162.159.115.9
©2016-2026

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 | 13.7k 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 | 21k 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 | 6.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users