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
shriram_pareek:
20200625 04:48:22
what is the meaning of "all of them wants his amount of pizza in one slice."??


kumar_anubhav:
20200623 17:04:19
AC in one go!! :) 

roshansalian:
20200419 18:39:46
If someone wants 3/4 you can only take 1/4 out and give him 3/4. He won't accept 3*(1/4) or 1/4+1/2 because 1/4 has been cut and merged.


manish_thakur:
20200220 05:18:49
refer to kkislay20 's comment if stuck! 

robosapien:
20200128 20:27:00
Last edit: 20200724 18:23:34 

tarun_28:
20191216 08:33:19
Hint: 2*(1/4)!=(1/2) ;) 

jprm2:
20190901 13:37:54
APPLY GREEDY APPP\ROACH FOR FULL AC SOLUTION


gaurav1614:
20190707 12:25:18
easy AC!! similar to this from cf  https://codeforces.com/problemset/problem/158/B


maratha:
20190326 21:06:48
AC in one go ! 

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

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 sbcl LISP clisp JSRHINO LUA OBJC PHP VB.NET 
Resource:  Croatian Highschool Competitions in Informatics 2004 