Midterm Question 2

1 like 1 dislike
6.8k 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 | 6.8k 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:172.69.17.125
©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 | 4.5k 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 | 11.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users