aboutsummaryrefslogtreecommitdiffstats
path: root/collatz.py.orig
diff options
context:
space:
mode:
Diffstat (limited to 'collatz.py.orig')
-rw-r--r--collatz.py.orig24
1 files changed, 0 insertions, 24 deletions
diff --git a/collatz.py.orig b/collatz.py.orig
deleted file mode 100644
index 404a2ed..0000000
--- a/collatz.py.orig
+++ /dev/null
@@ -1,24 +0,0 @@
-import PIL, math
-
-#Problem 14 Longest Collatz sequence
-#Note, a little slow, takes about 15 seconds.
-#There is probably a more efficient solution out there
-chain = []
-biggo = []
-
-def collatz(seed):
- chain.append(seed)
- if(seed == 1): return 0
- if(seed%2 == 0):
- seed = seed/2
- else:
- seed = 3*seed +1
- collatz(seed)
-
-for n in range(1,pow(10,6)):
- collatz(n)
- if(len(chain)>len(biggo)):
- biggo = chain
- chain = []
-print(biggo)
-print("Has " + str(len(biggo)) +" numbers.")