# To use reduce, we need to import it from 
# the functools library
from functools import reduce

myList = [-100, 30, -23, 32, 13, 100, 22, 101]

#----------------------
# EXAMPLE OF MAP
#----------------------
def FtoC(degreesF):
    return (degreesF - 32) * (5/9)

def list_FtoC(tempList):
    # MAP applies FtoC to each element in the list
    # It returns a MAP object that is ITERABLE.
    tempMap = map(FtoC, tempList)
    # We transform it into a list before returning
    return list(tempMap)

#----------------------
# EXAMPLE OF REDUCE
# ---------------------
def maxOfTwo(x, y):
    if x > y:
        return x
    else:
        return y

def maxOfList(numList):
    return reduce(maxOfTwo, numList)

def minOfTwo(x, y):
    if x > y:
        return y
    else:
        return x

def minOfList(numList):
    return reduce(minOfTwo, numList)

print('Temperature list in Fahrenheit : ', myList)
tempList = list_FtoC(myList)
print('Max temperature in Celsius : ' + '{:.{}f}'.format(maxOfList(tempList),2))
print('Min temperature in Celsius : ' + '{:.{}f}'.format(minOfList(tempList),2))