Midterm Question 2

1 like 1 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: 32706 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 8.4k views

49 Answers

0 like 0 dislike 
Hidden content!
#include    ***    * **  
int main (void) {
int check;
int sum;
int flag;
int   ** ** *       *   **  * * *** *     **
** * ** **     * *    **   ***  * **  * ** *  ***  ***  ***   * ***  * ** * ******** *  *    ****   *****  *        **  **  * * *** *  *  ***** ***  *  * *   * ** * *  **
* *** *     *     * ***  *  **  * *  ******* ********   
check=10-(sum%10);

if (flag == check){
*   *  ****  *    *             *  *   **  * ISBN");}
 ** *  *****  *    ** * **  *  
*   * *  ** **** **  * *** * *     *** ***** ** ** 
     * ** **  ***    **  * *** **   * ***   *  ******* * *******  *  * ** ** ISBN");
* **  ** **   * * *   * * **        * *
 return 0;
}
answered by (-140 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>
#include <stdlib.h>

float main()
{
****  * **  ** **   *         a,b,c,d,e;
   ****    **    *  ** * * *  ***** ** *** * * * *  * * 
  * * ** *** * *  * * *  **   
  *** * ***  *  ** *   
 ****** *   * * ***** 
 ** * **** *       * *    *** *


   *  ****** **     ** * * (a<=30)
 ***** ** * **** * *  *****  ****** *  ** * * ****  **** **** * **    * *** **  
** * ***** **** * ** *   *** *  ****** *** * * * * ****   *** (a>30<=50);
* * *  **   ****** **   * *   * ****  ******** ** ***  **  * ** *   ** * ******** * **


    if (a<=50)
**  ***  *  * **   * **  ***  * *  * ****    **  ** **   *  * *  * ** * ** **      ***
*   * * ** *  * *** *  *  * *****      *  *** ** ** ******* (a>50);
 ** ****     *  * *** * *    *  ** ** **  * * **  * **  *  * ** ** * *   ** **  *

    if (a<=60)
 *     * **  *** *  **    *     **    *   ***** * **  **** *   * * *    ****    ** * ** 
*   ******** **  ****  ** * * **  ******** *  * * * (a>60);
*   * * **  *** * *    **  *  ** *** * *** *  ***   * ** * ****** ****  **    * *    *     **

*  ****  * **  **  * **        *** 0;
}
answered
0 0
Case 0: Wrong output
Case 1: Wrong 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)
{
 * **  ** * *   ***   ** * * *    ****  *    *  ** ****  *   * * *****
   ** *   ***  *****  * * *  *   ** *  **** * *  *** *** ***** *    ** *  * * ** * * *** **** * *   *   ** *  **** *  ***      *   *    **  *    *   * * *  * ***  * **  **   ***  ***  

  **        * * *  ** **     ***** *  ***    ****** *  *  **** *  ****  
***  * **   * ****  ***   **    ** * **

   ** * * *  **  *  **    ** ***       ***
    {
* *    **  *** * **      **  * **** **    * *****     * **   * 
    }

 *******  *   *    ** *    *  ****
  * *   *** * ** ***   ***   
** *  ******   *  ** *** ***** ** *** ** * *** *** * **** **   * **  ISBN");
      ** *    ** *  ***
    ** ***  * ** *  *   *    **
* *       **  * * ** *** ** **   
 *   *    ****  *  **   **  **  * ** *    *  ***** *****   ** * * ****** ISBN");
    }
return 0;

}
answered by (-249 points)
0 0
Case 0: Wrong output
Case 1: Wrong 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)
{
***    * *   *  **  **    *  *  * **    **  * * * *** ** * **
 ****   ** **** *    **  *   ***   **  *    *   ****   *  * * *  *    *    ** * * ***  * *  *** * * ** ******* *  ** *   * ****  * **    ** **  * *** ***  *  * **** ***  * **   * *

  ***    *** *** ***  ** *       *   ** **   ** **  **  ***** 
**  ***** **  ** ** ***  ***  *** **** * ***
    
* * ***** **   *  *  *   *****     *
 *     *** ** *   *      
  ** *** ***   *  * * **  **** *    **** *** ****  **
***       *  *  *** **    **   *

   *** ** * *****    ***  ** ***  **
    {
****  *******   *    *** ***  **  *  *  *  * ** *  *** **  * *  *  *** * ISBN");
    **  *  * **   **  ** 
  * *  *  *******  *  *   *    
    {
 *** *    *    **  ** ** * *       *   * **   ***** * * ****** ** *   ISBN");
    * * *  * ** *** ***  *** *
return 0;

}
answered by (-249 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Correct output
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include  * *  **    
int main (){
int a,b,sum,sum1,c=10;
* *     **   ***    *****    * *
  *   *  ** *** *** *** * *  ******
do{
*   * * * * **********   ** * **
    ****  ** *  * * ****** *** 
 * *  * * *  ** *   ***   ****    
 *** * ***** ******   ** ******* **  *  ** **    ** *** *   * 
}if(c!==0){
***  * * ****  ** *  * *  *  ** 
sum1=c-sum;
 * **  * *  ** * *  *
}
***   ** *  *   **

return 0;
}
answered by (90 points)
0 0
prog.c: In function 'main':
prog.c:10:12: warning: too many arguments for format [-Wformat-extra-args]
     printf("%d*1+%d*3=",a,b,sum)
            ^~~~~~~~~~~~
prog.c:11:1: error: expected ';' before '}' token
 }if(c!==0){
 ^
prog.c:11:2: error: expected 'while' before 'if'
 }if(c!==0){
  ^~
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
*
answered by (1.1k points)
0 0
prog.c:1:1: error: expected '=', ',', ';', 'asm' or '__attribute__' at end of input
 test
 ^~~~
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
* * *  **     * 



int main * * *


int  ** **    *  **  *    * * * **** * *   ***    *** ** 


* *  * *  ****     *  ** * **   *  ***** ****  * ** * *  *    *  **   **  *****     ***  *** * **    *  *    **** *   * *  * *** ***** ***** **  

* ***  ** *  + num2*3 + num3*1 + num4*3 +  ** * + num6*3 +  * * +  ****  + *  ** +  **   +   ** * + ** *    

****   **   ***

if  *     * 
*   *****  **  * ** ***   * 

** ** *   *** * ***   *   **    **    *   

}

else if (check != *** * 

*****  *  * * * ****     ***** *  **   ** **  * * ** *     




*  * 0;
}
answered by (-107 points)
0 0
prog.c: In function 'main':
prog.c:11:7: warning: too many arguments for format [-Wformat-extra-args]
 scanf("%13d",&num1,&num2,&num3,&num4,&num5,&num6,&num7,&num8,&num9,&num10,&num11,&num12,&num13);
       ^~~~~~
commented by (4.3k points)
0 like 0 dislike
Hidden content!
** * * **

int main(void)

{

int ** ***** ** ** * * * *** ****
*** * *** ***** ** * * * ** * * ** * ** *** * * ** ****** ***** * * * * *** ****** ** ** ** *** *** * ** ** ***** * ***** *
** **** * ** * *********** *

check=10-(i%10);
****** ** * ***** *
* * ****** ******* * ** ** *** * * * * ISBN");}

  else
* * ** * **** ** * ** ** ** * * ** **** ISBN");}

return 0;

}
[] - answered by (-32 points)
ID: 33455 - Available when: Unlimited - Due to: Unlimited
edited by
0 1
Case 0: Wrong output
Case 1: Wrong 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()
{
   long whole=0;
*      *    *** * *** *** isbn;
**  ***  * *****   * * **** **  * ***** ****   **    &isbn);
  *  * ***   **   *       *  n1,n2,n3,n4,n5,n6,n7,n8,n9,n10,n11,n12,n13;

     ***  **  *    **   * *****   *   ***  *
      *** ** ** ****   ** * **    ****  * *  **** 
  ******* *   *****  *  *     * *   * **** *     *
  ***  *  **  *** * *   *    * **** * ***  *** ***  
*******  ****  *    *******    * ** ***  * * ***** *
*  * *****   *   *  *       ******  ** ** *
*** **** * ** ** *** * ** *** *     ****  *  * 
* * *** *  *      * ** ** ** * ****   * 
** * * *   **    *  *** ****  *   *  ** ***
   **  *   * * *  * * **   * * ****** * *
*   ***  *  * **  ** * **** *  **
 **** **      ** * *   * * *        
   ***  ***   ****  * * **********
whole = * * **     * ** *   **** **  * *   * ********    *  *  

printf("%ld", whole);
if (10-(whole%10)==n13)
**  ** ******     *  ** **   ****** **  * ISBN");
    }
 *  * * *    ** *****   **  *
*     *  **  ** *** * *  * ** *  * ****  ** **  ISBN");
   * **  ***  *****       ****  *  ** 

 ******  *  ****  ***  ** ***  0;
}
answered by (323 points)
0 0
Case 0: Wrong output
Case 1: Wrong 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()
{
   long whole=0;
*  * *  **     * **** **  ** * isbn;
 * * *  *  *  **** *** *    *    *   *  **    &isbn);
** * **  **  * **   *** *** ** n1,n2,n3,n4,n5,n6,n7,n8,n9,n10,n11,n12,n13;

       * **  *    ***** *  *  *  **    * 
 *    * *  * * * * ** ** *  * ****** * ********** 
* * *** *  * **   * *** *    *******  ****  * *
 *  *** ** *  ** ** * ***  *    **  ** ** 
*****  **  * *** **  ***  *     ** ***   * * 
*   *   * *  * * * *** *  ** *  *      * ** *
** ** *** *  ** * * **  * ***** *   ****
* *  **** **  ***   **  * ** *         ****
 *    * *     * *** **    ** *** **   *  **
*** **   ** ***   * *** ****      ***** *  *  
 *   ***  *  **** *   *   **    **  **  *
*  ***       * ***  * ** **    *  ** *
**  **  * *****  *  * ****  *  
whole =  *   *  * *  **  ** * * **      **** *  **  * ***** **** * *   **
if (10-(whole%10)==n13)
**  **  * *  * ** **** *      **   ***    ISBN");
    }
* *  ** * *** * **    * *   *
**    ******   ** ***  * ** **** ***** **** ISBN");
 **        ****    *  ***** **  **

     * *  * * *** *   ** *    0;
}
answered by (323 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
commented by (4.3k points)
Page:
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.59.82
©2016-2025

Related questions

0 like 0 dislike
26 answers
Midterm Question 2 - Makeup
[Exam] asked Dec 9, 2017 in Midterm by thopd (12.1k points)
ID: 36751 - Available when: 2017-11-15 14:10 - Due to: Unlimited | 5.4k 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 | 13.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users