Midterm Question 2

1 like 1 dislike
6.4k 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 | 6.4k 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:108.162.216.107
©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 | 4.2k 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 | 10.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users