Merge pull request #7150 from deadmarshal/challenge192

Challenge192

2 files changed, 34 insertions, 0 deletions

diff --git a/challenge-192/deadmarshal/lua/ch-1.lua b/challenge-192/deadmarshal/lua/ch-1.lua
new file mode 100644
index 0000000000..24ce490784
--- /dev/null
+++ b/challenge-192/deadmarshal/lua/ch-1.lua
@@ -0,0 +1,9 @@
+local function binary_flip(n)
+  assert(type(n) == 'number', 'n must be a number!')
+  return (~n) & (2 ^ (math.log(n) // math.log(2))-1)
+end
+
+print(binary_flip(5))
+print(binary_flip(4))
+print(binary_flip(6))
+
diff --git a/challenge-192/deadmarshal/lua/ch-2.lua b/challenge-192/deadmarshal/lua/ch-2.lua
new file mode 100644
index 0000000000..9fb45e9023
--- /dev/null
+++ b/challenge-192/deadmarshal/lua/ch-2.lua
@@ -0,0 +1,25 @@
+local function table_sum(t)
+  local sum = 0
+  for i=1, #t do sum = sum + t[i] end
+  return sum
+end
+
+local function equal_distribution(t)
+  assert(type(t) == 'table', 't must be a table!')
+  local sum = table_sum(t)
+  local avg,moves,sum_part = sum // #t,0,0 
+  if sum % #t == 0 then
+    for i=1, #t do
+      sum_part = sum_part + t[i]
+      moves = moves + math.abs(sum_part - (avg * (i)))
+    end
+    return moves
+  else
+    return -1
+  end
+end
+
+print(equal_distribution({1,0,5}))
+print(equal_distribution({0,2,0}))
+print(equal_distribution({0,3,0}))
+