1 thích 1 không thích
6.6k đã xem

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] đã hỏi trong Midterm bởi (12.1k điểm)
ID: 32706 - Xem được từ: 2017-11-15 14:10 - Hiệu lực đến: Không giới hạn
| 6.6k đã xem

49 Trả lời

0 thích 0 k thích
Hidden content!
#include **** *******
#include * ***** **

int main()
{
* ** ** *** * * *** * ** * ** *** * *
*** ** **** ** *** *** *** * **** ** *** * ***** * **** **** * ** * **** ** * * * * * * * ** * * * ** * *** ** *** ** ** **
* * ** * * * * * + b*3 + c*1 + d*3 + e*1 + f*3 + g*1 + h*3 + i*1 + j*3 + k*1 + l*3;
* ** *** ** * * **** ** *** *
*** * ** * * ** * (ans==m)
** ** *** * * ** **** ** * **** *** ISBN");
* * * ** * ** * * * **
** *** ** ** ** ***** * * ** * * * ******* ISBN");
* * * ** **** * * * 0;
}
trả lời bởi (-258 điểm)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 thích 0 k thích
Hidden content!
#include * ******** **

int main()
{
** * * ***** **** * whole;

* * ***** *** ** * ** * * * ***** ** ********* *
* **** *** ** * * * * * ** * * ** * * * ***** **** *** ** ** ** *** * **** * *** * &n6, &n7, &n8, &n9, &n10, * *** ** * * &n13);



whole = * * ** * * * * * * * **** ** **** * * * * ** ** * * **

int temp = whole%10;


if * **** * *
**** **** * * * * *
** * ** * *** ** ** *** * **** * * ** ******* **** ** * *** ** ISBN");
** **** * * * * ** ***
*** * * **** * * *** * **
** * * *** ******** *
* *** **** ******** * ** * *** *** ** *** * * * ** * * ** * * ** ISBN");
** *** ** ******* * ** ** * ***

**** ** ***** * ** * 0;
}
trả lời bởi (323 điểm)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 thích 0 k thích
Hidden content!
#include * ******

int main()
{
* **** * **** * ** whole=0;

* * *** * * * ** * * * *** ** * * ****** *
** ** *** **** ** ** * * * * * ** * ** *** * ** *** * ** * ** * * ** * * &n6, &n7, &n8, &n9, &n10, ** * ** &n13);



whole = * ** * * * * ****** * * * * * * *****



if ((10-(whole%10))==n13)
*** ** **** *
***** * ** *** * ** **** *** *** ***** * * ** ** ** ISBN");
* * ** * * ** * ** *
* * * **** * * *** *
*** ** * * ** ** * *** * * *
* **** **** ** * * ** * * ** *** ****** * * * ** * ** * * * ISBN");
* * ** ** ***** * * * * * **

* **** ** * * * * * * 0;
}
trả lời bởi (323 điểm)
0 0
prog.c: In function 'main':
prog.c:8:11: warning: too many arguments for format [-Wformat-extra-args]
     scanf("%1d1d1d1d1d1d1d1d1d1d1d1d1d", &n1,&n2,&n3,&n4,&n5, &n6, &n7, &n8, &n9, &n10, &n11,&n12, &n13);
           ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~
0 thích 0 k thích
Hidden content!
*** **** * *
main()
{
long int * * * ** * ** * * **
*** *** * * ** ** input ** * * *
***** * ** * *** * * **
if * * * ** ** *
** * * * ** * *** * ** ** * **
if * * * *
** * ** *** ** ***** * ** ****** **** * ** *

* * * ** *
*** *** ********
* * ** ** ** ** *
* ** ** * *
** *** * ** *
* ** * ********
* * ***
**** * * *
******* *** ** *
* * *** *** *
** **
m==a%100/10;//2
n==a%10;//1

* * ** * * * ** **
o==10-(sum%10);

if (n = o)
{
* * ***** * * * * ** *** ** *** * *** * ISBN");
}
if (n != o)
{
* **** ** * ** * * ** * **** *** *** ISBN");
}
return 0;
}
trả lời bởi (-32 điểm)
0 0
prog.c:2:1: warning: return type defaults to 'int' [-Wimplicit-int]
 main()
 ^~~~
0 thích 0 k thích
Hidden content!
#include * ** * **

int main(){
** ** **** long long int n;
* ** *   int temp=0;
* ****   int n1=0,n2=0;
* *** * *** * int value[13];
* **** *   int i,j;
** ***   int check;
*** *   int value2;

*   ** ** ** *** ** * ** **

* ** * *** for(i = 0; i < 13; i++){
* *** * * ** ** * * * ** * ** **** = n%10;
****** * * **** ** ***** *** *** * * = temp*3;
* * ***** **** **** * * ***** ******** ** * ********

* * ** ** * * ** ** ** * * ** ** * ** ** = n%10;
***** ***** ** ***** * *** ** ****** ** * * *** **** = temp;
* * * ***** * * ** ** * **** **** *** ** * ****
*** ** * * ** * * * ***** * * * * * * ** **** ** = * ** *
** * ** * *** ** **** ** * * * * * * ****** * * **
* * * ****   }
*** ** *** ***** * ** * * *** * ** ** * * value2);

* * * ** *** *

* * * * * *** ** ********
** * * * * ** * **** ** * * ******* * * *** ** *
* *** *** ** ***** *** * *
*** * **** *** ****** ** * * *** ****** **** * ****** *** ***** *** * * ****


**** *   return 0;
}
30/100 trả lời
0 0
prog.c: In function 'main':
prog.c:12:10: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'long long int *' [-Wformat=]
  scanf("%d", &n);
          ^
0 thích 0 k thích
Hidden content!
#include * **** **
int main ()
{
* **** ** **** * ** ** a;
**** ** *** * ***** * * * *** **
* * ** ** * **** * *** * * **
**** *** *** * * * ** * 0;
}
trả lời
0 0
prog.c: In function 'main':
prog.c:5:10: warning: too many arguments for format [-Wformat-extra-args]
    scanf("number",&a);
          ^~~~~~~~
prog.c:6:11: warning: too many arguments for format [-Wformat-extra-args]
    printf("Valid ISBM",a);
           ^~~~~~~~~~~~
0 thích 0 k thích
Hidden content!
#include<stdio.h>
int main()
{
**** *** ** * * * ** ** * a1, a2, a3, a4, a5, a6, a7, a8, a9, a10, a11, a12, a13, sum1,sum2, sum3, check;
* * * * * ** * ** *** * ** * ** ** * ** ** ** *** * **** * ***** * * *** * *** * * ** * * * * * ** ** ** * * * *** * * * * *

* ****** * ** *** * *** * * * * * ** **
*** * ** * * ** * * ** ** * ***** ** *

* ** ** **** * * * * * sum1+sum2;
* ** ** * **** * * 10 - (sum3%10);

** ***** ***** * ** ** *
** * * * ** * * * ***
* * ** ***** ***** * **** *** ** * *** * * * ISBN");
* ** *** *** **** * **
*** ** *** ** * *
** **** * *** * ***
**** * ** ** * * ** * * * * * * * * * * ** ** **** IBSN");
***** ** * * * ** *

* *** * ** * ** * 0;
}
20/100 trả lời bởi (-233 điểm)
0 0
prog.c: In function 'main':
prog.c:5:14: warning: format '%ld' expects argument of type 'long int *', but argument 2 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
              ^
prog.c:5:17: warning: format '%ld' expects argument of type 'long int *', but argument 3 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                 ^
prog.c:5:20: warning: format '%ld' expects argument of type 'long int *', but argument 4 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                    ^
prog.c:5:23: warning: format '%ld' expects argument of type 'long int *', but argument 5 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                       ^
prog.c:5:26: warning: format '%ld' expects argument of type 'long int *', but argument 6 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                          ^
prog.c:5:29: warning: format '%ld' expects argument of type 'long int *', but argument 7 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                             ^
prog.c:5:32: warning: format '%ld' expects argument of type 'long int *', but argument 8 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                ^
prog.c:5:35: warning: format '%ld' expects argument of type 'long int *', but argument 9 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                   ^
prog.c:5:38: warning: format '%ld' expects argument of type 'long int *', but argument 10 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                      ^
prog.c:5:41: warning: format '%ld' expects argument of type 'long int *', but argument 11 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                         ^
prog.c:5:44: warning: format '%ld' expects argument of type 'long int *', but argument 12 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                            ^
prog.c:5:47: warning: format '%ld' expects argument of type 'long int *', but argument 13 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                               ^
prog.c:5:50: warning: format '%ld' expects argument of type 'long int *', but argument 14 has type 'int *' [-Wformat=]
     scanf("%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld%ld", &a1,&a2,&a3,&a4,&a5,&a6,&a7,&a8,&a9,&a10,&a11,&a12,&a13);
                                                  ^
0 thích 0 k thích
Hidden content!
#include <stdio.h>
#include <stdlib.h>

int main()
{

* * * ** *** * ** ** isbn;
* * * ***** ** ** ** * ** * s1;
***** ** **** ** * * s2;
* *** *** * *** ** * **** s3;
** * * * ** * *** s4;
* * * ****** **** ** s5;
** * * **** ** ** * ***** s6;
* * ** *** * * * s7;
**** ** * ** * *** s8;
*** *** * * ** **** * *** ** *** s9;
* * * * * *** **** ****** ** s10;
* * * ** * *** ** * * s11;
** * * * *** * **** * s12;
**** *** * * * ** *** ***** s13;
    int check;
*** * * * **** * * ** sum;

*** *** ****** *** *** * * ***** ***

*** ** *** * *** ** * ****
* * * * *** * ** ********* ** ** * ** *
* ****** * * ** * * * * ****** ***** ** ***
** *** * ** * ** * ** *** *** * *
*** *** * * * * ** ** * ** **** * ***
*** ** * * ********* * **** * * * * **
* *** **** * * **** * * * * * *
* **** ***** * * ** *** * * * * * ***
*** ** ** * *** *** * ** * * * *****
**** * * **** * * * ****** * ** *
** * ** ** * * * ** *** ** *
** **** ** * **** * ** * **** *****
*** * * *** ** ** * ** *

* ** ** *** * ****** *** ***** ** ** *** * **** **

*** ** ** ** * ** * * =(10-(sum%10));

** * ** ** ** ** ** * * == s13)
    {
* *** ***** ** * ** *** *** *** * * * * **** * * * ** ISBN");
    }

* * ****** *** ** *** *
    {
**** * * ** * * ** ** ** * * *** *** ** ** **** * ***** ISBN");
    }

* * ***** *** **** * * * ******** *** ** *** * 0;
    }
trả lời bởi (-193 điểm)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Correct output
0 thích 0 k thích
Hidden content!
    #include <stdio.h>
#include <conio.h>

int main()
{

** *** ** ** * * ** *** *** ** isbn;
* ** * * * * *** * s1;
* * * * ** * ***** * ** s2;
** * * ** * ** * * s3;
* ** * ** * ******* s4;
** *** * * * * ** * * ** s5;
**** * * ** * ****** * * s6;
**** *** **** ** *** *** * s7;
** ** * ** * ** * * ** s8;
* ***** **** * * * **** s9;
** * ** ***** *** *** ** * s10;
* ******* ***** ** * s11;
****** * *** *** * *** s12;
* ** ** ** ** *** * * ** * s13;
* ** * * ** * ** check;
    int sum;

******* * ** **** ***** * * * * * &isbn);

* * ******* *** * * * ** *** *
* *** *** * ** * *** * * * * **** ***
* *** *** * ** * **** * *** ** *
* * *** ** * ** ** ** ** ** * * * * **** *
*** ******** **** ***** * ** ** ** ** ****
** * * ** * * * ** **** * *** * *
* *** * * * ** * * * * * *** * *****
* * * ** * * * * * * ** *** * ***
**** * * * * ** * * *** *
*** ** ** * * ** ** **** ** * ** *
* * * ********* * ** * * * * *
****** * * * * * ******** * *
* ** * * * * * * ** ** * * *

**** * ** * * * * * *** * * * * *** * *** ******

* * * ** * **** *

** * * *** * ** * * * == s13)
    {
** * *** ** * * * * ** * ** ** ** * ** ** * *** * * *** * ** * ISBN");
    }

*** **** * * **** * * *** ** *
    {
* ** * ** * ** ** ** ***** * **** *** * *** * ISBN");
    }

* **** *** ** * ** * ** * ** * **** *** ** 0;
    }
trả lời bởi (-193 điểm)
0 0
prog.c:2:19: fatal error: conio.h: No such file or directory
 #include <conio.h>
                   ^
compilation terminated.
0 thích 0 k thích
Hidden content!
#include<stdio.h>
int main(void)
{
    int n1,n2,n3,n4,n5,n6,n7,n8,n9,n10,n11,n12,n13,sum,check;
* * ** * ** *** * ** * * *** * ** * * ** ** * * ***** ** *** * * * ********* ** * ** ** * * *** * * * * ** * ********* * * * ** *****

** * ** * *** * *** * *** * ***** * ** **** ** * ***** *
* * ** ** ** * * ** * *** * *

* ** *** * * *** * ** ** * * * ****
    {
* * * * ****** * * * *** * * **
    }

**** **** ** * *** ***** * * * * ** * ** *** * *
** * * * * * * ****** ** * * ** *** * ****
* ** *** *** ** ** * * * * ***** * ** **** * * * * **** ** ** **** ISBN");
* *** ** ** * ** ** **** ******** ** ****
** ** ** ** **** **** * *** ***** **** ** ** *
* * **** * * * ** * * * *********** **** *
* * *** ** ** * **** ******* ** **** * **** ** * * *** * * *** **** * * *** ISBN");
**** ** * * * * * ** * *** ******* ** * **
return 0;

}
trả lời bởi (-249 điểm)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Correct output
Case 3: Correct output
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.17.42
©2016-2025

Những câu hỏi liên quan

0 thích 0 k thích
26 trả lời
[Exam] đã hỏi ngày 9 tháng 12 năm 2017 trong Midterm bởi thopd (12.1k điểm)
ID: 36751 - Xem được từ: 2017-11-15 14:10 - Hiệu lực đến: Không giới hạn
| 4.3k đã xem
2 thích 0 k thích
77 trả lời
[Exercise] Coding (C) - đã hỏi ngày 19 tháng 10 năm 2017 trong Chapter 5: Selection Statements bởi thopd (12.1k điểm)
ID: 27667 - Xem được từ: Không giới hạn - Hiệu lực đến: Không giới hạn
| 11.2k đã xem
12,783 câu hỏi
183,442 trả lời
172,219 bình luận
4,824 thành viên