0 like 0 dislike
1.2k 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
| 1.2k 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:108.162.216.52
©2016-2024

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
| 1.8k 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
| 2.8k 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
| 793 views
12,783 questions
183,443 answers
172,219 comments
4,824 users