EGYPIZZA - Pizza

no tags 

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
Mayank Ladia: 2014-11-20 16:45:57

isnt't 1st output wrong

Tim Wargon: 2014-10-31 11:08:12

I was getting wrong answers in the 9th case... Reason - was using strings to get input... use scanf("%d/%d") to get the input. Absolute time waster... :(

Last edit: 2014-10-31 11:08:35
surbhit21: 2014-10-24 10:33:11

FInally AC :D
!! after 3 WA . all the test cases in comments helped a lot

അഭി : 2014-10-09 08:41:21

AC in 1st go. Don't use char array to read input. DO scanf("%d/%d", x, y).

mayank: 2014-10-01 12:08:54

Nice one, got me tripped :P

Sandip Jana: 2014-09-07 18:54:40

Got AC in first go...JAVA... :D

kernel: 2014-08-07 13:58:42

FOR ALL WHO GET WA AFTER 9th JUDGE.
The worst part with the problem is the input is given as 1/2 1/4 3/4. So you need scan the input a real fractions not their decimal values.

Ajay Prasadh: 2014-08-03 13:29:40

dont solve this question stupid question .there are better ways to spend time by solving other questions :P

VIGNESH M: 2014-08-03 13:14:43

Repeating @Abhishek Kumar
"take the character array size greater than 3.it cost me sigsev"

Hammad Akhtar: 2014-07-27 21:28:07

even after I got the correct feel of the question, not initializing variables costed me two wrong answers :(


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