0 like 0 dislike
2.9k 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
| 2.9k 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:172.70.127.103
©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
| 4.4k 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
| 7.2k 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
| 2.2k views
12,783 questions
183,443 answers
172,219 comments
4,824 users