Midterm Question 2 - Makeup

0 like 0 dislike
7.4k 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 | 7.4k 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:104.23.197.64
©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 | 11.7k 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 | 18.2k 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 | 5.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users