#!/usr/bin/env lua
-- SYNOPSIS:
-- # chmod +x gcd.lua; ./gcd.lua 121 22 33 44
-- # lua gcd.lua 121 33 22
-- http://www.lua.org/pil/6.3.html
function gcd2(a, b)
if b == 0 then
return a
else
return gcd2(b, a % b)
end
end
function gcdn(ns)
r = ns[1]
local r = ns[1]
for i = 2, table.maxn(ns) #ns do
r = gcd2(r, ns[i])
end
return r
end
print(gcdn(arg))