Midterm Question 2

1 like 1 dislike
1.6k 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 | 1.6k 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:172.69.6.12
©2016-2024

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 | 1.1k 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 | 2.7k views
12,783 questions
183,443 answers
172,219 comments
4,824 users