#nov 23 solution with functions
#functions:
#1. random_list - has 3 parameters, size, min and max. Generates list of integers 
#between min and max and returns the list
#2. final_price - has 2 parameters, original_price, discount - function returns final 
#price after discount is taken
#3. process - has one parameter, list of original prices. Function generates new list with 
#discounted prices, counts number of items with 20% discount and number of items with 50% 
#discount. Function returns: discounted_prices (list), count_20, count_50
#Averages will be calculated in the main
import random
def random_list(size, min, max):
	prices=[]
	for i in range(size):
		prices.append(random.randint(min,max))
	return prices

def final_price(original_price, discount):
	return original_price-original_price*discount/100

def process(prices):
	num_items=len(prices)
	discount=[]
	count_20=0
	count_50=0
	for i in range(num_items):
		if(prices[i]<=50):
			d=20
			count_20+=1
		else:
			d=50
			count_50+=1
		final=final_price(prices[i],d)
		discount.append(final)
	return discount, count_20, count_50
def main():
	num_items=random.randint(5,7)
	prices=random_list(num_items, 25, 75)
	print("original prices")
	print(prices)
	discount, count_20, count_50=process(prices)
	print("discounted list")
	print(discount)
	print("count_20", count_20)
	print("count_50", count_50)
	print("average original price", sum(prices)/num_items)
	print("average discount price", sum(discount)/num_items)
main()