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authorDave Jacoby <jacoby.david@gmail.com>2021-07-12 10:48:31 -0400
committerDave Jacoby <jacoby.david@gmail.com>2021-07-12 10:48:31 -0400
commit34a6514808c066bee4e7f3d7d8bdeb67db056392 (patch)
tree05d0e268045ef3d6f971ec0e0c3eb1a48bdb7edd /challenge-089/stuart-little/lua/ch-1.lua
parentb59f8f4008bb8ec491a9e89f097f04ce54aed4c0 (diff)
parent1aa7b6eaba2a58fc1ef0612373e3aed6b61f345d (diff)
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Merge branch 'master' of https://github.com/manwar/perlweeklychallenge-club
Diffstat (limited to 'challenge-089/stuart-little/lua/ch-1.lua')
-rwxr-xr-xchallenge-089/stuart-little/lua/ch-1.lua17
1 files changed, 17 insertions, 0 deletions
diff --git a/challenge-089/stuart-little/lua/ch-1.lua b/challenge-089/stuart-little/lua/ch-1.lua
new file mode 100755
index 0000000000..2bfb91aee6
--- /dev/null
+++ b/challenge-089/stuart-little/lua/ch-1.lua
@@ -0,0 +1,17 @@
+#!/usr/bin/env lua
+
+-- run <script> <number>
+
+function gcd(a,b)
+ local lg,sml = math.max(math.abs(a),math.abs(b)),math.min(math.abs(a),math.abs(b))
+ if sml==0 then return lg end
+ return gcd(sml,lg%sml)
+end
+
+local sm=0
+for i=1,arg[1]-1 do
+ for j=i+1,arg[1] do
+ sm=sm+gcd(i,j)
+ end
+end
+print(sm)