0 like 0 dislike
4k 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
| 4k 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:172.70.100.213
©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
| 6.2k 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
| 10.4k 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
| 3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users