Midterm Question 2

1 like 1 dislike
3.5k 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 | 3.5k views

49 Answers

0 like 0 dislike 
Hidden content!
#include <stdio.h>
#include *    ** *   * 

int ISBN[13];
int sum;
int checkdigit;
int main()
{
  * *   ***  ** * *   ***   ***  **  *  ******  *     *** *  *  *  *  *    *  ** ** **  ** **    ****  **  **   *      ***    **  * *    * *****    * ***  *     **   * ***   *  * **** *    ** *  * ** * * * * * * ***  ** ** * 


**  *   ** * * * *  *    **  *    = * ***** *** ** **** * * * * * *   * * *  ******* *** ***** * *  *

  *   * ** * * * **  ** **   *  *****  * ** *
   ********    **  ISBN");
*  ***** * ** ** ** *** *  **** *** ** ****    * *  * ISBN");}
***   *   ** * ***  ***   * * *   * ** * *****    **  ISBN");}

 ***  * * * * *  ** * * * ** 0;
}
answered by (-286 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>
int main()
{
**   * *  * **** * *      a,b,c,d,e;
 * * * *  **    *** ** *  ** *  f,g,h,i,j;
*  *  *  ** * *  *  **   *** k,l,m,z;
*  * * *  ******     *     ** * *    **  * * **     *** ** *   *  *** ****   *    *  ***   * *****    **    * ** **** *******  *   *** **   * * * *** ** * **  ***** ** *
*** ** *   *** * *  **  * **   **** **  * *********  
** *      *   * *  * *  *  * (z==m)
*  *  * ***    ** * *     *  *
****  **  **   *    ***   ****    **   **    *  * **   *** * ***** *** **   ISBN");
    }
**** **** *****     *******  * *
  ** ***      *   * *  *  *  *  *
*  *  ** * *   ******  *  ***    * *** ** ** **** *  * * * *** *** ****  *  ISBN");
    }
 ** ***** **  * * *  * **    * 0;
}
answered by (-229 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>
//isbn number
int main(void)
{
 **    *   * ***** * *  ******        *** *   *   * *   ** * ***  
******** ** *  * * ****  ** *** ** ** **** ** *     *  ** **  ** **** * *   *  *  **** *           ***   *  ** * * ** * ***  **  *******   ****     *****   *  ** *  ***  *   ***   *      * ***** * 
* ***   *  * * **** * *     ** ***** *  ***** * *  *** ********* *   
*  ***        ****** **     *      ** ** 
* * * * ****    *  * ** **   *    ** * 
* *** **** * *   * * ** **     ** **** **  * * ** * ** **   *     ***       * *  ISBN");

* ** * *     ** * *   *  printf("Invalid ISBN");
* * ** **   *    * *** *   **  0;
}
answered by (-304 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>
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>
#include <stdlib.h>

int main()
{
   ****      ** ****      ** *    **   ****  *    *
 * *    *  * ***    *    *  **   **  ** **  *  **   * ** *       * *
 *    *** *      ***  * * *  **  ****  *  * ** * *****   * * **  *** * 
    * *******  * ** *  * *   * ***** *
    *  *    ** * ****  * * ** * (m==o)
 * ***     **  * *  ** *  ***  * *    ISBN\n");
* * *     ** ** * *  *****

  * * ** *  * ****   ** **  0;
}
answered by (-284 points)
0 0
prog.c: In function 'main':
prog.c:7:13: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
     scanf("%d",a,b,c,d,e,f,g,h,i,j,k,l,m);
             ^
prog.c:7:11: warning: too many arguments for format [-Wformat-extra-args]
     scanf("%d",a,b,c,d,e,f,g,h,i,j,k,l,m);
           ^~~~
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include  *****   * *  
#include **  * *  *    **    

int main()
{
 * **** * ******   *   *  **   * a, b, c, d, e, f, g, h, i, j, k, l, m;

* ***** *  * *  ***   *   * * * *   total = 0;

 ** * ****    *       ******* check = 0;

 * * * **** **         ** *   ***   ** ** * * *    * *  ******  *** *   **** ** *  ****  *  *  ****** *  **  ** **** ****     **     * *** *    * ***  *****   &j,   ***** *   **    *      * 

 ** *** * *****    **** ** **** ** = a*1 + b*3 + c*1 + d*3 + e*1 + f*3 + g*1 + h*3 + i*1 + j*3 + k*1 + l*3;

   **   *******  *  ** ****  * * = 10 - (total % 10);

 *   *     * *  *** **  ***** *  * = m)
  *   **    * * **     *** ** 
*   **  * * ** ** *** * ** *  *  ****  **   *  * *****  * **      *** ****   *
     *   * ** ******* **** 
* *  **  *   ** ***   * *  **
*   ** * * ***     *   **
*   ***  *  *** ***   *  *  **** *   *** *  **  *   **** *** ** * ****      **   ***     
* *  * *** ***  * ** *  *
}
35/100 answered by (-285 points)
0 0
prog.c: In function 'main':
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
     scanf("%0d%0d%0d%0d%0d%0d%0d%0d%0d%0d%0d%0d%0d", &a, &b, &c, &d, &e, &f, &g, &h, &i, &j, &k, &l, &m);
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
prog.c:12:11: warning: zero width in gnu_scanf format [-Wformat=]
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main()
{
* * * ***** * **   * *    **   *** * ***   * **    * **   * *****
*    * *  ***    * *****   **
*  * * ** ** **  *******  * **     **   *** *   * *** * ****   * ******** ***  ***  * *  **  *     *   ****   *  *** ***  * * * * **** ******       *** **   ***    ****     
  *  *  ***   *** *  * * ** 1*(n1+n3+n5+n7+n9+n11);
******    ** * ******  ****** 3*(n2+n4+n6+n8+n10+n12);
* *******  * **   *     * *** of first 12 numbers
  ****** * ** *   **  *    sum1+sum2;
**  *    *    *     *    *   * * 10 - (sum3%10);
   *   ***  * **  *****  *   * * * check digit
 *      *   * *  *  **    *    *  **
*   * *  * *   *  * *   
*   * *  *** * ***   ** ******** ***   ** * * ** * *  * *  *** *    ** * ISBN");
***  *    ** * **    **  *  *  
**  *  *  * * * *** ** **    *
    {
* **  *   **  ***     * ** ** *   ** * *  ******** ******  *****   ISBN");
  ***  ****    * * ****** *

 *** *******   ** ******    *   0;
}
answered by (-323 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>

int main()
{
     *******     * * *    * ** a,b,c,d,e,f,g,h,i,j,k,l,m,sum=0,check;
**  ** * * *      * ** ** *  *  ** ** *   *  ***  * ** *   **   ***  **** * ***** ******   *****   *   *  * *  **  **  *  * ***  *  * **   ** * *****  ***   * ****    *  **

 * *** *   * *  * ***** * **** * * ***  *  ***  
  * ******* *  * ** *       *   **   *   *  *

 *    *  ** *  *  *** *****  *     **  *** 
      ***  *      *  *  * *
 **   * *    * * ***     *   * **  *******  ** ** **     ** * ISBN");
*  * ***   **** * *    * ** * *

***** ** * **   ** * *  
    {
  *  ****  ** * * *  ** * ** * * * ***** ******  ***        * ** ISBN");

 **** * **  **     * * ***

 *** *  * ** *     *   **    0;
}
answered by (-127 points)
0 0
prog.c: In function 'main':
prog.c:7:51: warning: spurious trailing '%' in format [-Wformat=]
     scanf("%1d%1d%1d%1d%1d%1d%1d%1d%1d%1d%1d%1d%1d%",&a,&b,&c,&d,&e,&f,&g,&h,&i,&j,&k,&l,&m);
                                                   ^
commented by (4.3k points)
0 like 0 dislike 
Hidden content!
#include<stdio.h>
int main()
{
      * *** * *  * ****  *   a,b,c,d,e,f,g,h,i,j,k,l,m,sum,che;
** **    **** * * *  **     ***  *   *     *         *** ******** *  ****** *  * ** *     ** *   *   * *  *  * *  *       ** *    ** *** ******* ****  **  *  **   ***
 **   * ****** *** *** **** * ** **    ** *** *   **   **  **    
* * * *** * * ** *** * *  ** **  * **  *
 *  ** **    *******  *   **  (che==m)
   *  **** **  *** * *** *   *  
**   **  ** *  *** * * ***** ***  **  ** ***     ** *  *  **     ISBN");
    }
****** *   ** ** *   ** * ****
***   * * **  ** *** *    
 * *    ************* ** *** *  ** ****  * * * ** **  ****  * ** ISBN");
 *  *  *** *  * **  ***  *  * * 
}
answered by (-214 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>
int main()
{
 **    **   ** **** * **** **  a,b,c,d,e,f,g,h,i,j,k,l,m,n;
 *  * * *   * *** **    * ***  *****  *****   *  ** ** *   ***** **  ***   *** ****  *  **  * *  * * **   * ***        *** ***   **   * ** ** *  * * **    ** * *       * **   
    * * * **   *  *  ** *    ** *   *   ******** * * **  *  *
** **    *  *   ****  *  **   * ** **
    {
 ** ***     * *  ** *  * *  *    ******* **** * * * * **  * * *** **** ** ISBN");
* ****  *** *    ***** *  **   
****  ***  *** *     ** ** ***
  *  * **  *** **  ** ** **
    *** * ***  *  * *   ** * ** ** **  **     *** * *** *   *** * *  *  ISBN");
* ** *****  *  * **   **   *

}
answered by (-255 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct 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:172.71.254.4
©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