Midterm Question 2

1 like 1 dislike
12.2k 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 | 12.2k 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:104.23.197.65
©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 | 7.7k 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 | 19k views
12,783 questions
183,442 answers
172,219 comments
4,824 users