harmonic.python

[Tim Rowe-2]

The program for the harmonic sum benchmark looks to have some addition
operations that can be taken out, and the explicit casts can be taken
out (though I don't know if that's a time saving, as an implicit cast
will still be done).  Here's an amended version that /might/ be
faster.

# http://shootout.alioth.debian.org/
#
# Contributed by Greg Buchholz
# Amended by Tim Rowe to remove O(N) redundant additions,
# O(N) explicit casts and one function call. Might be faster.

import sys

s = 0.0
for i in range(1, int(sys.argv[1]) + 1):
    s = s + 1.0/i
print "%.9f" % s

--
Tim Rowe

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