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:172.69.214.39
©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