Midterm Question 2

1 like 1 dislike
6.3k 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 | 6.3k 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:172.70.127.218
©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 | 4k 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 | 10.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users