Midterm Question 2

1 like 1 dislike
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 | 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:172.70.126.168
©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 | 3.2k 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 | 8.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users