Midterm Question 2

1 like 1 dislike
3.6k 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 | 3.6k 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:172.69.59.170
©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 | 2.3k 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 | 5.9k views
12,783 questions
183,443 answers
172,219 comments
4,824 users