"""
Write a program that generates 2d list of prices. 
Program asks user to enter row and col. 
You can assume that prices are in range 1 - 50. 
The store is running the Holiday sale using the following rule: 
(1)all items that cost $25 and less receive 10% discount 
(2)all items above $25 receive 30% discount. 
Use these functions to generate the list and print 2d list in table form.

Write function process, that creates 2 one dimensional 
lists with final prices: first list contains final 
prices for all items that had original prices 
$25 and below, and second list contains final prices 
for all items that had original price above $25. 
The function also returns AVERAGES final prices for EACH category. 
Write main to test your program. 
"""


import random 

def make_2d_list(row, col, min_limit, max_limit):
	a = [[ 0 for i in range(col)] for j in range(row)] 
	for i in range(row):
		for j in range(col):
			a[i][j]=random.randint(min_limit, max_limit)

	return a

def print_table(my_list_2d):
	row=len(my_list_2d)	
	for i in range(row):
		print(my_list_2d[i])

def process(prices):
	list_10=[]
	list_30=[]
	row=len(prices)
	col=len(prices[0])
	for i in range(row):
		for j in range(col):
			if(prices[i][j]<=25):
				list_10.append(prices[i][j]*90/100)
			else:
				list_30.append(prices[i][j]*70/100)
	if(len(list_10)>0):
		ave_10=sum(list_10)/len(list_10)
	else:
		ave_10=None
	if(len(list_30)>0):
		ave_30=sum(list_30)/len(list_30)
	else:
		ave_30=None
	return list_10, list_30, ave_10, ave_30

def main():	
	prices=make_2d_list(3,4,1,50)
	print("original prices")
	print_table(prices)
	list_10,list_30,ave_10,ave_30=process(prices)
	if(ave_10!=None):
		print("list10",list_10)
		print("ave10",ave_10)
	else:
		print("no items 25 or below")
	if(ave_30!=None):
		print("list30",list_30)
		print("ave30",ave_30)
	else:
		print("no items  above 25")
main()