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 Java7 (OpenJDK 1.7.0) (judge verdict: Wrong Answer)

import java.util.Scanner;
public class Main {
	public static void main (String[]args) {
	Scanner teclado = new Scanner (System.in) ;		
	int A, B, T;
	A = teclado.nextInt();
	B = teclado.nextInt();
	T = teclado.nextInt();
	
	if(A < B && T+0.5 <=20 && T+0.5 > B && A*2 <=T+0.5) {
		System.out.println(B*2);
	}else if (B < A && T+0.5 <=20 && T+0.5 > B && A*2 <=T+0.5) {
		System.out.println(A*2);
	}else if( T+0.5 < B ){
		System.out.println(0);
	}
	
}}