Merge remote-tracking branch 'upstream/master'

2 files changed, 81 insertions, 0 deletions

diff --git a/challenge-003/abigail/lua/ch-1.lua b/challenge-003/abigail/lua/ch-1.lua
new file mode 100644
index 0000000000..70de9b1923
--- /dev/null
+++ b/challenge-003/abigail/lua/ch-1.lua
@@ -0,0 +1,30 @@
+#!/opt/local/bin/lua
+
+--
+-- See ../README.md
+--
+
+--
+-- Run as: lua ch-1.lua < input-file
+--
+
+for max in io . lines () do
+    local max = tonumber (max)
+    local base2 = 1
+    --
+    -- Lua doesn't have a for (expr; expr; expr) syntax.
+    -- This is missed here.
+    --
+    while base2 <= max do
+        local base3 = base2
+        while base3 <= max do
+            local base5 = base3
+            while base5 <= max do
+                print (base5)
+                base5 = base5 * 5
+            end
+            base3 = base3 * 3
+        end
+        base2 = base2 * 2
+    end
+end
diff --git a/challenge-003/abigail/lua/ch-2.lua b/challenge-003/abigail/lua/ch-2.lua
new file mode 100644
index 0000000000..0e30b0a9c6
--- /dev/null
+++ b/challenge-003/abigail/lua/ch-2.lua
@@ -0,0 +1,51 @@
+#!/opt/local/bin/lua
+
+--
+-- See ../README.md
+--
+
+--
+-- Run as: lua ch-2.lua < input-file
+--
+
+
+--
+-- Iterate over the input
+--
+for line in io . lines () do
+    local rows = tonumber (line)
+
+    --
+    -- Create and print row 0
+    --
+    local row = {1}
+    print "1"
+
+    local r
+    for r = 1, rows do
+        -- 
+        -- Create a new row
+        --
+        local new = {}
+        for i = 1, r + 1 do
+            sum = 0;
+            if i > 1
+            then sum = sum + row [i - 1]
+                 io . write (" ")
+            end
+            if i <= r
+            then sum = sum + row [i]
+            end
+            --
+            -- Assign new element, and print it
+            --
+            new [i] = sum
+            io . write (sum)
+        end
+        io . write ("\n")
+        --
+        -- New row becomes current row
+        --
+        row = new
+    end
+end