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:172.69.17.161
©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