#map_demo.py
#filter too

import math
def area(r):
    return math.pi*r**2

radii = [1,2,3,4,5,6,10]
areas = [area(r) for r in radii]
print(areas)

areas = list(map(area,radii))
print(areas)


list1 = [("asdf",-12),("qwer",32),("fghj",13),("cvbn",34),("tyui",22)]
def fahr(t):
    return t[0], 9/5*t[1] + 32

list2 = list(map(fahr,list1))
print(list2)

list3 = list(map((lambda t: (t[0],9/5*t[1] + 32)), list1))
print(list3)


radii_avg = sum(radii) / len(radii)
radii_above_avg = list(filter(lambda r: r>radii_avg, radii))
print(radii_above_avg)

list5 = ["asdf",0,"",234,"dghdfgh"]
no_zeros_list = list(filter(None,list5))   #get rid of the 'zeroes'
print(no_zeros_list)

#multiple ints in one line of input
my_ints_list = list(map(int,input("Enter ints on one line").split()))
print(my_ints_list)

x1, x2, x3 = map(eval,input("Enter the 3 scores: ").split())
#print(type(x3))
print(x1,x2,x3)

# reduce
import functools
#Product of a list
# reduce requires a function of two arguments
print(functools.reduce(lambda x,y: x*y, my_ints_list))