diff options
Diffstat (limited to 'challenge-228/deadmarshal/lua/ch-1.lua')
| -rw-r--r-- | challenge-228/deadmarshal/lua/ch-1.lua | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/challenge-228/deadmarshal/lua/ch-1.lua b/challenge-228/deadmarshal/lua/ch-1.lua new file mode 100644 index 0000000000..0de103fe4e --- /dev/null +++ b/challenge-228/deadmarshal/lua/ch-1.lua @@ -0,0 +1,18 @@ +#!/usr/bin/env lua + +local function unique_sum(t) + local hash,sum = {},0 + setmetatable(hash,{__index = function(t,k) return 0 end}) + for i=1,#t do + hash[t[i]] = hash[t[i]] + 1 + end + for k,v in pairs(hash) do + if v == 1 then sum = sum + k end + end + return sum +end + +print(unique_sum({2,1,3,2})) +print(unique_sum({1,1,1,1})) +print(unique_sum({2,1,3,4})) + |