Midterm Question 2

1 like 1 dislike
8.6k 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 | 8.6k 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:108.162.216.250
©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 | 5.7k 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 | 14k views
12,783 questions
183,442 answers
172,219 comments
4,824 users