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September 28, 2011 07:33
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A script to solve a problem in algo textbook :D
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# Python script to solve the problem 1-1 in 'Introduction to Algorithms - Cormen, Leiserson, Rivest, Stein (3rd edition)' | |
# Ershad K <[email protected]> | |
# License: GPL Version 3 | |
from math import * | |
import sys | |
def f_(n): | |
return n**3 | |
# Define the desired f(n) here and return the value. | |
print "Processing..." | |
sec = 10**6 #microseconds --> seconds | |
maxrange = [sec ,sec*60 , sec*60*60, sec*60*60*24, sec*60*60*24*30, sec*60*60*24*30*12, sec*60*60*24*30*12*100] | |
cmaxrange = ['1 second' ,'1 minute','1 hour' , '1 day', '1 month', '1 year', '1 century' ] | |
maxi = 2**800 # A large range | |
i = 1 | |
for j in range(len(maxrange)): | |
g = 0 | |
while i < maxi: | |
oldg = g | |
g = f_(i) | |
if g > maxrange[j] : | |
print "n = %2d [f(n) = %-20.2f Time = %-10s]" % (i-1,oldg,cmaxrange[j]) | |
break | |
i = i + 1 |
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