Midterm Question 2

1 like 1 dislike
9.1k 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 | 9.1k 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:172.70.131.149
©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 | 6.1k 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 | 14.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users