Midterm Question 2 - Makeup

0 like 0 dislike
7.2k 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 | 7.2k 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:104.23.243.164
©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 | 11.2k 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 | 17.7k 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 | 5.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users