0 like 0 dislike
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: 36751 - Available when: 2017-11-15 14:10 - Due to: Unlimited
| 1k 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:172.70.179.86
©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
| 1.5k 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
| 2.4k 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
| 731 views
12,783 questions
183,443 answers
172,219 comments
4,824 users