diff options
Diffstat (limited to 'challenge-199/deadmarshal/lua/ch-1.lua')
| -rw-r--r-- | challenge-199/deadmarshal/lua/ch-1.lua | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/challenge-199/deadmarshal/lua/ch-1.lua b/challenge-199/deadmarshal/lua/ch-1.lua new file mode 100644 index 0000000000..3d75319798 --- /dev/null +++ b/challenge-199/deadmarshal/lua/ch-1.lua @@ -0,0 +1,17 @@ +#!/usr/bin/env lua + +local function good_pairs(t) + assert(type(t) == 'table','t must be a table!') + local count = 0 + for i=1,#t do + for j=i+1,#t do + if t[i] == t[j] then count = count + 1 end + end + end + return count +end + +print(good_pairs({1,2,3,1,1,3})) +print(good_pairs({1,2,3})) +print(good_pairs({1,1,1,1})) + |