Midterm Question 2

1 like 1 dislike
11.3k 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 | 11.3k 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:162.159.115.31
©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 | 7.2k 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 | 17.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users