2024@1-2

9 files changed, 4126 insertions, 0 deletions

diff --git a/2024/01a/data.txt b/2024/01a/data.txt
new file mode 100644
index 0000000..7d1b595
--- /dev/null
+++ b/2024/01a/data.txt
@@ -0,0 +1,1000 @@
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diff --git a/2024/01a/run.rb b/2024/01a/run.rb
new file mode 100755
index 0000000..420a596
--- /dev/null
+++ b/2024/01a/run.rb
@@ -0,0 +1,17 @@
+#!/usr/bin/env ruby
+
+data = File.read("data.txt")
+
+data = data.split("\n")
+data = data.map(&:split)
+
+first_row = data.map { |data| data[0] }.sort
+second_row = data.map { |data| data[1] }.sort
+
+merged = first_row.zip(second_row)
+
+distance = merged.map do |row|
+  (row[0].to_i - row[1].to_i).abs
+end.sum
+
+p distance
diff --git a/2024/01b/data.txt b/2024/01b/data.txt
new file mode 100644
index 0000000..7d1b595
--- /dev/null
+++ b/2024/01b/data.txt
@@ -0,0 +1,1000 @@
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diff --git a/2024/01b/run.rb b/2024/01b/run.rb
new file mode 100755
index 0000000..29d9539
--- /dev/null
+++ b/2024/01b/run.rb
@@ -0,0 +1,24 @@
+#!/usr/bin/env ruby
+
+data = File.read("data.txt")
+
+data = data.split("\n")
+data = data.map(&:split)
+
+first_row = data.map { |data| data[0].to_i }
+second_row = {}
+
+data.map do |data| 
+  value = data[1].to_i
+  count = second_row[value] ? second_row[value] + 1 : 1
+  second_row[value] =  count
+end
+
+similiarity = first_row.map do |value|
+  multiplayer = second_row.fetch(value, 0)
+  value * multiplayer
+end.sum
+
+p similiarity
+
+
diff --git a/2024/02a/data.txt b/2024/02a/data.txt
new file mode 100644
index 0000000..88eccc0
--- /dev/null
+++ b/2024/02a/data.txt
@@ -0,0 +1,1000 @@
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diff --git a/2024/02a/run.rb b/2024/02a/run.rb
new file mode 100755
index 0000000..2ba1060
--- /dev/null
+++ b/2024/02a/run.rb
@@ -0,0 +1,32 @@
+#!/usr/bin/env ruby
+
+data = File.read("data.txt")
+
+data = data.split("\n")
+data = data.map(&:split)
+
+safe_arr = data.map do |row|
+  directions = []
+
+  row.each_with_index do |value, index|
+    next if index.zero?
+    distance = (value.to_i - row[index-1].to_i)
+    direction = if (distance.abs > 3 )
+                  :err
+                elsif distance > 0
+                  :up
+                elsif distance  < 0
+                  :down
+                else
+                  :err
+                end
+
+    directions << direction
+  end
+
+  directions.uniq.count == 1 ? 1 : 0
+
+
+end
+
+p safe_arr.sum
diff --git a/2024/02b/data.txt b/2024/02b/data.txt
new file mode 100644
index 0000000..88eccc0
--- /dev/null
+++ b/2024/02b/data.txt
@@ -0,0 +1,1000 @@
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diff --git a/2024/02b/data_o b/2024/02b/data_o
new file mode 100644
index 0000000..b49c10d
--- /dev/null
+++ b/2024/02b/data_o
@@ -0,0 +1,6 @@
+7 6 4 2 1
+1 2 7 8 9
+9 7 6 2 1
+1 3 2 4 5
+8 6 4 4 1
+1 3 6 7 9
diff --git a/2024/02b/run.rb b/2024/02b/run.rb
new file mode 100755
index 0000000..627bac4
--- /dev/null
+++ b/2024/02b/run.rb
@@ -0,0 +1,47 @@
+#!/usr/bin/env ruby
+
+
+def directions_for_values(values)
+  directions = []
+  values.each_with_index do |value, index|
+    next if index.zero?
+
+    distance = (value.to_i - values[index-1].to_i)
+    direction = if (distance.abs > 3 )
+                  :err
+                elsif distance > 0
+                  :up
+                elsif distance < 0
+                  :down
+                else
+                  :err
+                end
+
+    directions << direction
+  end
+
+  return 0 if directions.count(:err) > 1
+  directions.uniq.count == 1 ? 1 : 0
+end
+
+
+data = File.read("data.txt")
+
+data = data.split("\n")
+data = data.map(&:split)
+
+safe_arr = data.map do |row|
+  results = [directions_for_values(row)]
+
+  row.each_with_index do |value, index|
+    tmp_arr = row.dup
+    tmp_arr.delete_at(index)
+    results << directions_for_values(tmp_arr)
+  end
+
+  results
+end.map(&:sum)
+
+
+p safe_arr.count { |row| row > 0 }
+