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 sliceseither 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
masterchef2209:
20180810 13:16:26
finally solved this question, tricky one;


joe85123:
20180719 17:13:14
can someone please tell me what's going on in the 9th test case? I wrote in C and I already checked all the test cases here in comment and had no problem, but still getting WA. Then I asked someone for a sample code written in c++, the idea was pretty much the same and it got AC. Is it because of the language or can someone who got AC after struggling with the 9th judge share their experience? 

bluishgreen:
20180706 09:41:12
For the given sample test case: 3 3/4 3/4 1/2, isn't the answer 3? 2 pizzas can be split as 3/4 3/4 1/2 and the remaining 1 for the host. Am I missing out something here? Last edit: 20180706 09:44:31 

manjeet_:
20180614 19:39:39
simple ques using MAP Last edit: 20180614 19:40:04 

kkislay20:
20180613 20:18:46
For all those who are getting confused if these test cases are correct and then read my previous comment. That is what the actual scenario is!! 

kkislay20:
20180613 20:15:49


zephyr_96:
20180320 21:09:34
Good question !! 

sinersnvrsleep:
20180211 07:34:07
spoj toolkit is giving wrong answers for 4 (1/4) case 

deepak097:
20180128 21:49:21
AC ! in 1 go 

bani_raheja:
20171228 22:37:30
instead of checking the test cases, just keep in mind that you should maintain pairing up of 1/4 and 3/4 as the highest priority and then proceed onto further cases. 3/4 and 1/2 cannot be paired. 
Added by:  Kawmia Institutes 
Date:  20100818 
Time limit:  0.204s 
Source limit:  50000B 
Memory limit:  1536MB 
Cluster:  Cube (Intel G860) 
Languages:  All except: ASM64 BF LISP clisp LISP sbcl JSRHINO LUA OBJC PHP VB.NET 
Resource:  Croatian Highschool Competitions in Informatics 2004 