0 like 0 dislike
4.9k 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: 36751 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 4.9k views

26 Answers

0 like 0 dislike
Hidden content!
#include<stdio.h>

int main(){
    char isbn[12];
    int a,b,c,d,e,f,g,i=0,j;
* *** *** * * * * ** * ** * ** * ** * *
******* * * * * * * *** * ** ****** *
** * ** * ** * * * * * *** *** * * * **
** ************** * * * * * ***
* ** * * * ** ** ** * * ******** * * * ** *****
** * * ***** * * *** **
* * * ** *** * **
** ** * ** * ** ** **** *
** ** ** * * * * ** * ** ***
* ** * * ***** *** *** *
* ** * * **** ** * ****** * **** *** ** ** * * ISBN");
* ** * *** * * * * *
**** ** ** *** ***** * * * * * * * ** ** * * * ISBN");

}
answered by (-32 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
0 like 0 dislike
Hidden content!
#include<stdio.h>

int main(){
    char isbn[12];
    int a,b,c,d,e,f,g,i=0,j;
* **** * *** * **** *** ** * * * *** *
*** *** *** * * * **** * * *
** * *** * ** ***** * * ** * ** * ** ** **** * ***** ** **
* * ** ** * * ** * *** * * *
*** *** * * ** *** * ** ** *** ** ** ** * ****** **
**** ****** * ** * **
** ** * ** * *********
*** * * * * *** * **
**** * * ** * *****
* *** **** * ** * *
*** ***** ** ** * ** * ** * * ** **** ******* * * ISBN");
* * * ****** *** ** * *
*** * * * ******** * *** * ** ** *** **** ** * ** *** ISBN");

}
answered by (-32 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
0 like 0 dislike
Hidden content!
#include <stdio.h>
#include <string.h>

int main(){
    ///long long int n = 978960931962;

    long long int n;// = 9789609319614;
    int lastDigit;
    int temp1;
    int sum=0;
    int check=0;

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

** * ** * * * ** * * ** ** * ** * * * ** * ** ** = n%10;
* * ** *** *** * * *** * * * *** * **** * = n/10;

** ** * * * *** ** * * ** * * * = n%10;
** *** * *** * * *** ** ** ** ** * * ** ** ** = temp1*3;
*** * * * * * ** *** ** * ** * *** ** = sum + temp1;
**** * ** * ******** ** ** * *** ** ** ** *** * ***** * * ", temp1);
***** ** * ** **** * * * * * ** * *** * *** = n/10;


* ** * * * * * * * * ** * * ******** = n%10;
** ***** * * * ** **** ** * ** * ** ** ** = temp1*1;
**** * * ** * * *** ** **** **** * **** = sum + temp1;
* ** * * * * ** * *** * * **** * ** ** ** * ", temp1);
* * *** ** ** ** ** ** * ** * ** **** = n/10;

* * * * *** * ** * *** * ** **** * * * = n%10;
* ** * * ** * ** ** * ******* * * * * = temp1*3;
* * ** * ** ** * *** ***** *** * ** ** = sum + temp1;
* **** **** **** * * **** * * * ** * ** ** ** **** *** ", temp1);
* * * * ** * * ** *** * *** * ** * * * * = n/10;

* * * * **** *** * * * ** * ** ** * * ** = n%10;
** ** * ** * ****** ** ****** *** ** *** *** * = temp1*1;
** * ** * ** *** * ** ** *** * *** *** * * = sum + temp1;
* *** *** *** * *** ** * * **** * ** **** ", temp1);
* * ** **** **** * * *** **** * * ** *** * = n/10;

*** * *** * * * * *** ** *** ** **** ** = n%10;
* ** *** * ** * *** * * *** * * ** * = temp1*3;
* * * ** *** ** ** * * ** *** * ** * *** = sum + temp1;
* ** * **** * * * * * ** ** ** ********* * * ******** ", temp1);
* ** * * **** * **** * * *** ** ***** * = n/10;

** *********** * ** * *** ** ** * ** * **** = n%10;
* * ** * *** * * * ****** * *** *** *** * = temp1*1;
* **** ** * ** * * * **** *** ***** * ** *** = sum + temp1;
* *** ** * * ** ** * * ** * ** **** ** ** *** ** ", temp1);
* *** * * ** *** ** *** * *** ** ** * ** ** = n/10;

* *** * ** * ** ** ** *** * * **** * ** ** * = n%10;
* ** * ** **** *** *** ** * ** **** * *** = temp1*3;
* * *** * * * * * ** * * **** * *** ** = sum + temp1;
* *** * ** ** ***** * *** *** ** ** * ** * * ** ** * ", temp1);
**** * * ** ** * * * * * ** * *** ** * = n/10;

* ***** ** * *** ***** * **** * ** *** = n%10;
* * * * **** *** * ** ***** * *** ** * = temp1*1;
*** ** * * * * ***** ** * * ** ** * * ** = sum + temp1;
* * * * *** ** **** ** * * * *** ** *** ", temp1);
* **** * ** * * *** ** * * *** * * * * *** = n/10;

*** * ** * ** ** **** ** * ** ** * * **** = n%10;
**** * *** **** **** * * *** * **** ** * = temp1*3;
** * * *** ** **** *** * *** ** ***** **** *** = sum + temp1;
* * * * **** * ** ** *** * * * * * **** ** * * ** * ", temp1);
* *** * ** * * * * ** ** * *** * ** * ***** = n/10;

* *** * ***** ** * *** * *** *** * ** * ** ** = n%10;
* * * * * ** * ** ** ** **** **** ** *** * = temp1*1;
** * **** ****** * * * **** **** ********* ** *** = sum + temp1;
* *** **** ** * *** *** * * * ** * ** * ** * ", temp1);
** * ***** *** * * * ** * **** ** * * ** * = n/10;

** *** *** * * * **** *** ** *** * *** * ** = n%10;
** ** **** ** * *** * * * * ** * * ***** ** ** = temp1*3;
* * ***** * ****** * * * * ** *** * * **** *** * = sum + temp1;
** *** ** * * *** * * * * ** * ******* *** **** ", temp1);
* ** * ****** * ** ** ***** ** * ** * ** ** = n/10;

* ** ** * * **** * ** * *** ** * * * * *** = n%10;
* ***** * *** * * * * *** * ** * ** ** * * = temp1*1;
* * * * ** *** ** *** ** * ** *** *** **** ** = sum + temp1;
* ***** * ** * * * ** ** * * *** * * ", temp1);

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


** **** * * * *** * ** ** * ***** * * *** * * ** * ** * == check)
* * * ** * ****** *** **** ** ** * ** * ** ** * * ** * *** * ** ********** * ISBN\n");
* ***** * * * * *** ** ** ** *** *** *
** * * ** * ****** * ** * * * *** *** ** * * ** **** ** ***** * *** * * ISBN\n");

    return 0;
}
90/100 answered by (-74 points)
0 0
Case 0: Wrong output
Case 1: Wrong output
Case 2: Wrong output
Case 3: Wrong output
0 like 0 dislike
Hidden content!
#include * **** ****


int main (void)
{

int * ** * * ** ** * * * * ***** ***** **** ** **

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



total= ** *** *** ** *** ******* * ** * * ** ** ** *** *** * *

check_digit= (10-(total%10));

 if (check_digit!=num13)
* ** ** **** ** *

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

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

*** * * * * ** if ******* *
** ** * ** ** ** * ** * ** * * *


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

}

return 0;
}
answered by (-107 points)
0 0
prog.c: In function 'main':
prog.c:9:7: warning: too many arguments for format [-Wformat-extra-args]
 scanf("%13d",&num1,&num2,&num3,&num4,&num5,&num6,&num7,&num8,&num9,&num10,&num11,&num12,&num13);
       ^~~~~~
0 like 0 dislike
Hidden content!
#include * ** ****** *


int main (void)
{

int * * * * **** ** * * * ***** **** ** *

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



total= * * * **** * ** *** *** ****** * * ** ** * * * ******** * *

check_digit= (10-(total%10));

 if ** * * **
* *** * * * * * * * *

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

}

** ** ** * *** * **** * ** if * * * *
**** * ** ***** * * ***** * ** ** **


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

}

return 0;
}
answered by (-107 points)
0 0
prog.c: In function 'main':
prog.c:9:7: warning: too many arguments for format [-Wformat-extra-args]
 scanf("%13d",&num1,&num2,&num3,&num4,&num5,&num6,&num7,&num8,&num9,&num10,&num11,&num12,&num13);
       ^~~~~~
0 like 0 dislike
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;
}
answered by (-233 points)
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 like 0 dislike
Hidden content!
#include **** *** * **


int main (void)
{

int **** ***** * * * ******* ** ** * * *** ** ** *

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



total= * ** ** ** **** * * * ** ****** **** * ******** * * * * * * *
check_digit= 10-(total%10);

 if ** *** ***
* * * * * * * *** *

**** ** * * **** * ** *
}

 else if ** * * *
***** * * * ** * * * *

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

 }

return 0;
}
answered by (-107 points)
0 0
prog.c: In function 'main':
prog.c:9:7: warning: too many arguments for format [-Wformat-extra-args]
 scanf("%13d",&num1,&num2,&num3,&num4,&num5,&num6,&num7,&num8,&num9,&num10,&num11,&num12,&num13);
       ^~~~~~
0 like 0 dislike
Hidden content!
#include * *** * ****


int main (void){

int *** * ** * * **** * * **** *** * ***

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



total= ** ** * * ***** ** * ** * * * *** **** ** ** * *
check_digit= 10-(total%10);

 if ** *** * **
* * ****** * * ** *** * **


* ** ****** * * * * ** * * * * * ** *
}
 
** * if * * * * *
* *** ****** *** ** *

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

 }

return 0;
}
answered by (-107 points)
0 0
prog.c: In function 'main':
prog.c:8:11: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
 scanf("%13d",num1,num2,num3,num4,num5,num6,num7,num8,num9,num10,num11,num12,num13);
           ^
prog.c:8:7: warning: too many arguments for format [-Wformat-extra-args]
 scanf("%13d",num1,num2,num3,num4,num5,num6,num7,num8,num9,num10,num11,num12,num13);
       ^~~~~~
0 like 0 dislike
Hidden content!
#include<stdio.h>
int main(void)
{
*** **** **** *** *** * a,b,c,d,e,f,g,h,i,j,k,l,m;
** * * * * * ** **** ***** * *** ** ***** ** * * ***** * * * ** ***** * * *** ***** ** *** **** *** * ** * * *** * * * * * *

* **** ** * * * * * * ** check,sum;
* * *** * **** ** *** *** * * ** * * * ***
* * * * * ** ** ** *** ** **** * * * * ** **
* * * * ***** * * * ** *

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

    



* * *** ** * ** *** * *** != m)
* * **** * * *** * *
********* * *** * ** * * ***** ** ** * ****** * * *** * * ** ISBN");
*** * * * * **** * *
* * ** * *** * * * * ***
***** * * *** * * *
* * * * * ***** ** * * * * * * * * ISBN");
    }

return 0;
}
answered by (-249 points)
0 0
Case 0: Correct output
Case 1: Correct output
Case 2: Correct output
Case 3: Correct output
0 like 0 dislike
Hidden content!
#include * ** ** **
int main (){
int ****** ***** * ** * *
int **** ** **
** ** * * number 13: ");
* * ** ** * * ** ** * * * **** * * ** * * *
** * ** * * ********
** ***** ** ** * ** * ***
* ** * **
* * * *
* *
*** * ** * * *
}else {
***** **** *** * ** *** *
}

return 0;
}
answered by (16 points)
0 0
prog.c: In function 'main':
prog.c:6:9: warning: format '%d' expects argument of type 'int *', but argument 2 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
         ^
prog.c:6:11: warning: format '%d' expects argument of type 'int *', but argument 3 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
           ^
prog.c:6:13: warning: format '%d' expects argument of type 'int *', but argument 4 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
             ^
prog.c:6:15: warning: format '%d' expects argument of type 'int *', but argument 5 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
               ^
prog.c:6:17: warning: format '%d' expects argument of type 'int *', but argument 6 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
                 ^
prog.c:6:19: warning: format '%d' expects argument of type 'int *', but argument 7 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
                   ^
prog.c:6:21: warning: format '%d' expects argument of type 'int *', but argument 8 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
                     ^
prog.c:6:23: warning: format '%d' expects argument of type 'int *', but argument 9 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
                       ^
prog.c:6:25: warning: format '%d' expects argument of type 'int *', but argument 10 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
                         ^
prog.c:6:27: warning: format '%d' expects argument of type 'int *', but argument 11 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
                           ^
prog.c:6:29: warning: format '%d' expects argument of type 'int *', but argument 12 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
                             ^
prog.c:6:31: warning: format '%d' expects argument of type 'int *', but argument 13 has type 'int' [-Wformat=]
 scanf("%d%d%d%d%d%d%d%d%d%d%d%d",i1,i2,i3,i4,i5,i6,i7,i8,i9,i10,i11,i12);
                               ^
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.17.60
©2016-2025

Related questions

1 like 1 dislike
49 answers
[Exam] asked Nov 15, 2017 in Midterm by thopd (12.1k points)
ID: 32706 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 7.6k views
2 like 0 dislike
77 answers
[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
| 12.7k views
0 like 0 dislike
15 answers
[Exam] asked Dec 9, 2017 in Midterm by thopd (12.1k points)
ID: 36755 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 3.6k views
12,783 questions
183,442 answers
172,219 comments
4,824 users