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-rw-r--r--008.lua16
1 files changed, 16 insertions, 0 deletions
diff --git a/008.lua b/008.lua
new file mode 100644
index 0000000..486ffca
--- /dev/null
+++ b/008.lua
@@ -0,0 +1,16 @@
+local number = "7316717653133062491922511967442657474235534919493496983520312774506326239578318016984801869478851843858615607891129494954595017379583319528532088055111254069874715852386305071569329096329522744304355766896648950445244523161731856403098711121722383113622298934233803081353362766142828064444866452387493035890729629049156044077239071381051585930796086670172427121883998797908792274921901699720888093776657273330010533678812202354218097512545405947522435258490771167055601360483958644670632441572215539753697817977846174064955149290862569321978468622482839722413756570560574902614079729686524145351004748216637048440319989000889524345065854122758866688116427171479924442928230863465674813919123162824586178664583591245665294765456828489128831426076900422421902267105562632111110937054421750694165896040807198403850962455444362981230987879927244284909188845801561660979191338754992005240636899125607176060588611646710940507754100225698315520005593572972571636269561882670428252483600823257530420752963450"
+
+local max = 0
+local index = 1
+while true do
+ local str = number:sub(index, index + 4)
+ if str:len() < 5 then break end
+ local prod = str:sub(1, 1) *
+ str:sub(2, 2) *
+ str:sub(3, 3) *
+ str:sub(4, 4) *
+ str:sub(5, 5)
+ if prod > max then max = prod end
+ index = index + 1
+end
+print(max)