EGYPIZZA - Pizza

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Abotrika is having a party because his team won the African cup so he is inviting his friends to eat some pizza. Unfortunately, his friends can't eat an entire pizza but all of them know exactly how much pizza they can eat and insist on getting the exact amount of pizza but Abotrika eats one complete pizza and all of them wants his amount of pizza in one slice. Their requests break down to three different pizza slices-either one quarter or a half or three quarters of pizza.

Write a program that will help Abotrika to find out what is the minimal number of pizzas he has to order so that everyone gets exact amount of pizza they want.

Input

First line contains an integer N, 0 ≤ N ≤ 10 000, the number of friends. In each of next N lines there is amount of pizza that each of Abotrika's friends wants to eat,that is the fraction 1/4, 1/2 or 3/4.

Output

In the first and only line you should write the minimal number of pizzas Abotrika has to order don't forget to order one complete pizza for Abotrika.

Example 1

Input:
3
1/2
3/4
3/4

Output:
4

Example 2

Input:
5
1/2
3/4
1/2
1/4
1/4 

Output:
4

hide comments
adarsh035: 2017-06-03 16:50:43

For case 9: check
37
1/2
1/2
1/4
1/2
3/4
1/4
1/2
3/4
3/4
1/4
1/4
1/2
3/4
3/4
1/2
1/4
3/4
1/4
1/2
3/4
1/2
1/2
1/2
3/4
1/4
1/4
1/4
1/4
1/4
3/4
1/4
1/4
1/4
3/4
1/4
1/4
1/4

Output: 18

akash619j: 2017-05-30 09:07:32

20
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/2
1/2
1/2
1/2
1/2
1/2
3/4
3/4
3/4
3/4
3/4
I am getting 10 o/p by my accepted code but 11 is o/p show in spoj toolkit!! I think answer 10 is correct if you simulate it practically..

Last edit: 2017-05-30 09:08:49
vladimira: 2017-03-15 12:22:27

impl/concept = easy/easy

codeappy: 2017-03-04 14:43:41

my 50th
thanks for comments

nilabja16180: 2017-02-23 09:40:03

Finally AC, complicated problem statement

vanvinhbk94: 2017-02-17 08:13:58

AC in one go ^ ^

mastik5h_1998: 2017-02-12 20:57:32

approach as said....

narutohokage_1: 2017-02-02 11:53:45

Comments Can BE Misleading , listen to yourself. Do it yourself.ANd you will find the simplest solution.

narutohokage_1: 2017-02-02 11:43:57

12
3/4
3/4
3/4
1/4
1/4
1/4
1/4
1/4
1/4
1/4
1/2
1/2

Output : 6


If someone answer is coming 7 and still it is accepting code , means that they are not checking this case , and your solution is not failing on their in put set , you are being saved by luck.

Last edit: 2017-02-02 11:50:22
narutohokage_1: 2017-02-02 11:43:22

Please Read Question Again And See The Solved Example Above and also don't forget this line " don't forget to order one complete pizza for Abotrika." Do not read comment just think on your own , you will find solution. It is not difficult no problem is.Watch NAruto For MOtivataion.


Added by:Kawmia Institutes
Date:2010-08-18
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