Problem:
Score : 100 points

Problem Statement

A biscuit making machine produces B biscuits at the following moments: A seconds, 2A seconds, 3A seconds and each subsequent multiple of A seconds after activation.

Find the total number of biscuits produced within T + 0.5 seconds after activation.

Constraints

All values in input are integers.

1 \leq A, B, T \leq 20

Input

Input is given from Standard Input in the following format:

A B T

Output

Print the total number of biscuits produced within T + 0.5 seconds after activation.

Sample Input 1

3 5 7

Sample Output 1

10

Five biscuits will be produced three seconds after activation.

Another five biscuits will be produced six seconds after activation.

Thus, a total of ten biscuits will be produced within 7.5 seconds after activation.

Sample Input 2

3 2 9

Sample Output 2

6

Sample Input 3

20 20 19

Sample Output 3

0

Solution in Java8 (OpenJDK 1.8.0) (judge verdict: Runtime Error)

import java.util.*;
public class Main {
    public static void main(String[] args) {
      
        Scanner in = new Scanner(System.in);
        int n = in.nextInt();
        int a[] = new int[n];
        for (int i = 0; i < n; ++i){
            a[i] = in.nextInt();
        }
        Arrays.sort(a);
 
        int max = a[1];
//        System.out.println("max: " + max);
    
        for (int i = max; i >= 1 ; i--){
//            System.out.println("i: " + i);
            int count = 0;
            for (int j = 0; j < n; ++j){
                if (a[j]%i != 0){
                    count++;
                }
            }
//            System.out.println("count: " + count);
            if (count == 1 || count == 0){
                System.out.println(i);
                break;
            }
        }
    }
}