Midterm Question 2

1 like 1 dislike
1.7k 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 | 1.7k 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:172.69.59.86
©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 | 2.8k views
12,783 questions
183,443 answers
172,219 comments
4,824 users