CodeForces-148A-Insomnia cure

A. Insomnia cure

time limit per test

2 seconds

memory limit per test

256 megabytes

input

standard input

output

standard output

«One dragon. Two dragon. Three dragon», — the princess was counting. She had trouble falling asleep, and she got bored of counting lambs when she was nine.

However, just counting dragons was boring as well, so she entertained herself at best she could. Tonight she imagined that all dragons were here to steal her, and she was fighting them off. Every k-th dragon got punched in the face with a frying pan. Every l-th dragon got his tail shut into the balcony door. Every m-th dragon got his paws trampled with sharp heels. Finally, she threatened every n-th dragon to call her mom, and he withdrew in panic.

How many imaginary dragons suffered moral or physical damage tonight, if the princess counted a total of d dragons?

Input

Input data contains integer numbers k, l, m, n and d, each number in a separate line (1 ≤ k, l, m, n ≤ 10, 1 ≤ d ≤ 105).

Output

Output the number of damaged dragons.

Sample test(s)

input

1
2
3
4
12

output

12

input

2
3
4
5
24

output

17

Note

In the first case every first dragon got punched with a frying pan. Some of the dragons suffered from other reasons as well, but the pan alone would be enough.

In the second case dragons 1, 7, 11, 13, 17, 19 and 23 escaped unharmed.

import java.util.*;
public class InsomniaCure {
	public static void main(String[]args){
		Scanner in=new Scanner(System.in);
		int k=in.nextInt();
		int l=in.nextInt();
		int m=in.nextInt();
		int n=in.nextInt();
		int d=in.nextInt();
		int count=0;
		for(int i=1;i<=d;i++){
			if(i%k!=0&&i%l!=0&&i%m!=0&&i%n!=0)
				count++;
		}
		System.out.println(d-count);
	}
}

tips:1、<span style="font-family: Arial, Helvetica, sans-serif;">在k l m n 这几个数据的录入中可以抽象为数组内四位元素，从而采用循环赋值方式，更加方便 。2、if判断句可用德摩根律转换成并集形式</span>