largest_of_very_large_numbers.py

# Author: Abhijeeth S

importmath


defres(x, y):
"""
 Reduces large number to a more manageable number
 >>> res(5, 7)
 4.892790030352132
 >>> res(0, 5)
 0
 >>> res(3, 0)
 1
 >>> res(-1, 5)
 Traceback (most recent call last):
 ...
 ValueError: math domain error
 """
if0notin (x, y):
# We use the relation x^y = y*log10(x), where 10 is the base.
returny*math.log10(x)
elifx==0: # 0 raised to any number is 0
return0
elify==0:
return1# any number raised to 0 is 1
raiseAssertionError("This should never happen")


if__name__=="__main__": # Main function
# Read two numbers from input and typecast them to int using map function.
# Here x is the base and y is the power.
prompt="Enter the base and the power separated by a comma: "
x1, y1=map(int, input(prompt).split(","))
x2, y2=map(int, input(prompt).split(","))

# We find the log of each number, using the function res(), which takes two
# arguments.
res1=res(x1, y1)
res2=res(x2, y2)

# We check for the largest number
ifres1>res2:
print("Largest number is", x1, "^", y1)
elifres2>res1:
print("Largest number is", x2, "^", y2)
else:
print("Both are equal")