Midterm Question 2

1 like 1 dislike
10.7k 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 | 10.7k 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:172.71.1.153
©2016-2026

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 | 6.9k 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 | 16.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users