EGYPIZZA - Pizza

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

Added by:Kawmia Institutes
Date:2010-08-18
Time limit:0.204s
Source limit:50000B
Memory limit:1536MB
Cluster: Cube (Intel G860)
Languages:All except: ASM64 BF LISP sbcl LISP clisp JS-RHINO LUA OBJC PHP VB.NET
Resource:Croatian Highschool Competitions in Informatics 2004

hide comments
2013-07-10 12:34:20 pika_pika
after large number of WA's, happy to see the green light. thanks everyone for the test cases. :)
2013-07-03 18:41:36 SherlocK
hey guys.. can someone plz plz tell me the format of the input and the output.. meaning the no.of spaces and new line etc.. as my code is giving correct o/p for the various test cases available but its showing wrong answer..this is despite the fact that the output is correct even for those test cases..(not just the ones given as examples for this program)

Last edit: 2013-07-03 18:42:29
2013-06-23 17:29:03 Ouditchya Sinha
@Himanshu Kumar Sahu : Answer for your test case is 18. Just read the question carefully & work out small test cases to get the logic. :)
2013-06-20 17:50:02 Himanshu
what will be the answer of the following case please xplain... thanx in advance
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

2013-06-17 13:52:44 Rishabh Dugar
was getting wa at test case(8),,when i found bug in my code from following test case,,,
ip
2
3/4
1/4
o/p
2
2013-06-15 07:13:10 Unknown
Run this case
4
3/4
1/4
1/2
1/4
output:
3
2013-06-03 12:46:33 Vishal Sharma
getting WA after running(8)
2013-05-28 13:22:36 mystique_blue
Add Bijoy's comment to the problem statement. +1 Bijoy. You helped me....

@Arika.. read the problem statement..... input can only be 1/2 1/4 3/4....

Last edit: 2013-05-28 13:24:30
2013-05-24 07:24:00 jagadeesh babu chitta
@ ersaa khaled khairalla
u 4got about the line "all of them wants his amount of pizza in one slice."
2013-05-08 11:56:55 Abdallah Okasha
Take input as he show u in the problem statement & Get AC :D
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