Midterm Question 2

1 like 1 dislike
13k 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 | 13k 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:104.23.243.204
©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 | 8k 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 | 20.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users