Midterm Question 2

1 like 1 dislike
6.4k 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 | 6.4k 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:172.70.100.76
©2016-2025

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 | 4.2k 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 | 10.8k views
12,783 questions
183,442 answers
172,219 comments
4,824 users