Midterm Question 2

1 like 1 dislike
6.1k 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 | 6.1k 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:172.69.17.169
©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 | 3.9k 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 | 10.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users