Midterm Question 2

1 like 1 dislike
6.6k 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 | 6.6k 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:108.162.216.248
©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 | 4.3k 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 | 11.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users