From 5736fe277dec22f0f62813deda485923ee1f2452 Mon Sep 17 00:00:00 2001
From: Reiner Herrmann <reiner@reiner-h.de>
Date: Mon, 28 Jun 2010 17:49:55 +0200
Subject: project euler solution 57

---
 src/projecteuler/057.py | 16 ++++++++++++++++
 src/projecteuler/073.py |  1 -
 2 files changed, 16 insertions(+), 1 deletion(-)
 create mode 100644 src/projecteuler/057.py

diff --git a/src/projecteuler/057.py b/src/projecteuler/057.py
new file mode 100644
index 0000000..8098995
--- /dev/null
+++ b/src/projecteuler/057.py
@@ -0,0 +1,16 @@
+
+def get_fraction(c):
+	(n, d) = (1, 2)
+	for i in xrange(1, c):
+		(n, d) = (2*d+n, d) # add 2
+		(n, d) = (d, n) # 1/x, swap entries
+	return (d+n, d) # add 1
+
+count = 0
+for i in xrange(1, 1000):
+	(n, d) = get_fraction(i)
+	if len(str(n)) > len(str(d)):
+		count += 1
+
+print count
+
diff --git a/src/projecteuler/073.py b/src/projecteuler/073.py
index 163fcbe..4aeb7ab 100644
--- a/src/projecteuler/073.py
+++ b/src/projecteuler/073.py
@@ -2,7 +2,6 @@
 limit = 12000
 
 fractions = set()
-count = 0
 
 for d in xrange(2, limit+1):
 	start_n = (d+3)/3
-- 
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