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| author | Jesse Luehrs <doy@tozt.net> | 2009-05-15 10:05:49 -0500 |
|---|---|---|
| committer | Jesse Luehrs <doy@tozt.net> | 2009-05-15 10:05:49 -0500 |
| commit | db1d685414ac9257082803be8af9b27a088d8938 (patch) | |
| tree | 92bba99d4ada3fab21ef64cea35181a75986e2bb /145-broken.lua | |
| parent | 5afab29454b75fa55cc54fc32fa39b20aea75134 (diff) | |
| download | projecteuler-db1d685414ac9257082803be8af9b27a088d8938.tar.gz projecteuler-db1d685414ac9257082803be8af9b27a088d8938.zip | |
mark these old ones as non-working
Diffstat (limited to '145-broken.lua')
| -rw-r--r-- | 145-broken.lua | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/145-broken.lua b/145-broken.lua new file mode 100644 index 0000000..1713881 --- /dev/null +++ b/145-broken.lua @@ -0,0 +1,12 @@ +-- this will take ~6h to run... need efficiency! +function reversible(n) + local revn = n:reverse() + local str = tostring(n + revn) + return not str:match("[02468]") +end + +local sum = 0 +for i = 1, 999999999 do + if i % 10 ~= 0 and reversible(tostring(i)) then sum = sum + 1 end +end +print(sum) |