Midterm Question 2 - Makeup

0 like 0 dislike
7.3k 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 | 7.3k 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:162.159.115.32
©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 | 11.3k 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 | 17.9k 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 | 5.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users