Midterm Question 2 - Makeup

0 like 0 dislike
6k 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 | 6k 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:172.69.130.71
©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 | 8.9k 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 | 14.6k 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 | 4.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users