Midterm Question 2

1 like 1 dislike
9k 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 | 9k 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:172.70.131.13
©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 | 6k 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 | 14.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users