Add day 2 solutions (got on global leaderboards)

3 files changed, 1012 insertions, 0 deletions

diff --git a/2021/02/input b/2021/02/input
new file mode 100644
index 0000000..f402851
--- /dev/null
+++ b/2021/02/input
@@ -0,0 +1,1000 @@
+forward 1
+down 3
+down 2
+up 1
+down 7
+down 8
+forward 6
+forward 1
+forward 1
+down 6
+up 3
+down 7
+down 1
+down 6
+forward 6
+down 6
+forward 3
+up 7
+forward 5
+down 4
+forward 6
+forward 1
+forward 6
+forward 9
+forward 3
+up 1
+forward 7
+down 9
+forward 2
+up 9
+down 5
+down 3
+up 1
+down 6
+down 7
+down 8
+down 7
+forward 7
+forward 3
+down 5
+down 2
+forward 4
+forward 7
+down 8
+down 4
+down 5
+down 1
+forward 4
+up 6
+forward 6
+forward 4
+forward 5
+up 3
+up 6
+down 4
+down 8
+forward 4
+forward 5
+down 3
+forward 1
+down 5
+down 5
+forward 8
+forward 9
+forward 1
+forward 8
+forward 5
+forward 6
+up 8
+down 3
+forward 8
+up 2
+down 3
+down 9
+up 9
+forward 5
+down 2
+forward 7
+forward 5
+forward 5
+down 2
+down 3
+forward 7
+forward 9
+down 9
+forward 3
+forward 3
+down 3
+forward 3
+up 6
+down 4
+forward 3
+forward 3
+forward 7
+down 4
+forward 8
+up 8
+down 3
+down 2
+forward 2
+down 6
+down 6
+up 7
+up 9
+down 4
+up 7
+up 8
+down 6
+down 1
+forward 6
+forward 9
+forward 1
+forward 8
+down 4
+up 3
+forward 6
+down 5
+forward 7
+forward 5
+down 2
+forward 7
+down 6
+forward 7
+up 2
+up 5
+forward 3
+down 6
+down 9
+down 9
+forward 9
+up 7
+down 6
+down 4
+down 8
+forward 6
+up 6
+down 2
+forward 5
+up 7
+forward 5
+down 1
+up 8
+forward 2
+forward 4
+down 5
+down 8
+up 7
+up 5
+down 2
+forward 8
+forward 4
+up 6
+forward 8
+down 3
+down 2
+down 2
+forward 4
+forward 2
+forward 9
+up 3
+up 7
+up 3
+up 5
+forward 5
+up 8
+forward 3
+forward 1
+down 3
+down 8
+forward 6
+forward 5
+up 5
+down 9
+down 1
+down 9
+forward 9
+up 3
+forward 7
+forward 6
+forward 1
+up 3
+forward 9
+forward 7
+down 9
+up 6
+forward 2
+up 9
+forward 6
+forward 4
+up 3
+forward 5
+down 4
+up 8
+up 4
+up 9
+down 1
+down 7
+forward 7
+forward 2
+down 9
+forward 7
+forward 2
+down 6
+down 9
+up 6
+down 7
+down 2
+down 7
+down 6
+down 4
+down 4
+forward 6
+forward 9
+forward 4
+down 7
+down 5
+up 6
+down 7
+forward 2
+down 3
+down 1
+forward 1
+forward 5
+down 4
+down 4
+down 1
+down 9
+forward 6
+down 3
+forward 5
+up 7
+forward 9
+down 8
+down 3
+up 2
+up 2
+forward 4
+down 7
+forward 2
+forward 5
+forward 4
+forward 3
+down 8
+down 6
+forward 9
+down 1
+forward 1
+down 1
+up 8
+down 2
+forward 2
+up 5
+down 7
+forward 8
+down 7
+down 4
+forward 2
+forward 6
+up 2
+forward 8
+forward 2
+forward 1
+up 5
+down 4
+down 8
+forward 4
+down 8
+up 8
+forward 3
+down 5
+forward 2
+forward 1
+up 3
+forward 9
+up 5
+forward 5
+forward 5
+up 8
+down 6
+forward 3
+down 4
+up 5
+forward 3
+up 6
+forward 6
+forward 9
+down 7
+down 7
+down 8
+down 4
+forward 4
+forward 3
+forward 3
+forward 5
+down 3
+forward 8
+up 5
+forward 1
+up 7
+down 5
+forward 7
+forward 3
+down 3
+forward 2
+forward 1
+forward 4
+up 2
+down 8
+forward 9
+forward 9
+down 6
+down 1
+down 5
+forward 4
+down 2
+forward 1
+up 7
+down 9
+forward 3
+down 5
+down 5
+up 6
+down 6
+forward 8
+down 1
+up 3
+down 2
+up 1
+forward 5
+down 4
+down 6
+forward 8
+down 4
+down 5
+down 2
+forward 5
+forward 8
+down 8
+up 4
+forward 2
+up 2
+down 9
+forward 6
+forward 1
+forward 5
+up 2
+down 1
+up 7
+up 3
+forward 3
+down 7
+forward 2
+forward 4
+up 7
+forward 4
+forward 6
+up 2
+forward 4
+forward 2
+down 6
+down 5
+down 5
+down 6
+forward 9
+up 4
+down 4
+down 7
+up 6
+up 9
+up 4
+down 4
+up 7
+down 9
+down 9
+forward 3
+down 7
+down 7
+down 7
+down 2
+up 2
+up 1
+up 6
+down 8
+up 7
+down 4
+forward 8
+down 7
+up 1
+down 5
+down 3
+forward 6
+up 1
+down 5
+forward 3
+forward 6
+forward 7
+forward 2
+down 3
+forward 1
+up 9
+down 5
+up 2
+up 9
+up 2
+up 2
+forward 1
+down 2
+forward 1
+down 7
+forward 1
+forward 8
+down 9
+down 1
+forward 9
+forward 7
+forward 7
+down 5
+down 5
+down 3
+forward 6
+down 7
+down 4
+forward 2
+up 6
+down 3
+up 4
+up 7
+forward 2
+forward 8
+forward 4
+down 7
+down 9
+up 1
+down 2
+up 8
+down 2
+up 6
+forward 6
+up 5
+down 2
+forward 5
+down 4
+forward 7
+down 3
+down 5
+forward 1
+down 7
+forward 1
+up 1
+forward 4
+up 4
+forward 4
+forward 5
+forward 7
+down 7
+down 2
+up 4
+down 2
+down 3
+forward 3
+forward 2
+forward 5
+forward 2
+up 8
+forward 3
+down 7
+down 9
+forward 3
+forward 6
+down 7
+down 5
+down 3
+up 3
+forward 5
+forward 2
+down 1
+up 1
+up 8
+down 6
+down 4
+down 1
+forward 1
+down 7
+up 8
+forward 2
+forward 8
+forward 8
+forward 7
+down 1
+forward 8
+down 8
+forward 4
+down 3
+up 9
+down 8
+forward 9
+down 7
+up 2
+forward 9
+down 4
+up 3
+up 4
+up 4
+forward 5
+up 2
+forward 3
+down 5
+forward 5
+down 5
+up 8
+down 4
+forward 6
+down 6
+forward 7
+forward 2
+down 2
+up 7
+down 5
+down 9
+down 8
+down 4
+up 3
+forward 4
+down 8
+down 8
+down 9
+down 7
+forward 2
+forward 8
+up 5
+forward 8
+down 9
+forward 6
+up 1
+down 6
+forward 1
+up 4
+down 3
+forward 3
+forward 2
+down 6
+forward 7
+up 6
+up 9
+down 1
+forward 3
+forward 4
+forward 2
+up 8
+forward 9
+up 7
+down 2
+forward 2
+up 7
+down 2
+up 6
+down 2
+forward 9
+forward 3
+down 6
+down 5
+down 3
+forward 9
+down 8
+down 8
+down 2
+down 7
+up 3
+forward 1
+down 7
+up 8
+up 8
+forward 5
+forward 5
+forward 1
+down 8
+down 6
+forward 2
+up 3
+forward 1
+forward 7
+forward 4
+forward 5
+forward 9
+forward 7
+forward 6
+forward 3
+forward 4
+down 8
+down 1
+forward 6
+forward 9
+forward 6
+forward 9
+forward 6
+up 3
+down 8
+forward 4
+forward 1
+down 4
+forward 9
+down 8
+down 3
+up 2
+forward 5
+forward 2
+forward 5
+down 6
+down 3
+up 1
+down 9
+up 5
+forward 6
+down 7
+forward 1
+forward 9
+down 2
+down 5
+forward 3
+forward 6
+down 4
+down 5
+up 4
+forward 7
+forward 5
+down 8
+forward 6
+down 5
+forward 2
+down 7
+forward 4
+forward 8
+down 8
+forward 2
+forward 8
+down 5
+forward 7
+down 8
+down 1
+forward 8
+down 4
+up 4
+down 7
+down 6
+up 5
+forward 4
+forward 1
+forward 4
+down 5
+forward 5
+forward 9
+down 1
+forward 3
+up 7
+down 1
+down 7
+forward 2
+down 5
+down 6
+forward 5
+up 2
+down 9
+forward 1
+up 5
+forward 6
+forward 9
+forward 4
+up 4
+down 6
+up 9
+up 5
+down 2
+up 9
+down 2
+down 4
+down 8
+down 2
+forward 2
+forward 2
+down 9
+up 5
+forward 2
+forward 8
+down 2
+down 2
+down 9
+down 3
+down 9
+up 9
+up 3
+down 1
+down 9
+down 2
+forward 7
+down 2
+up 3
+down 9
+up 2
+up 4
+forward 5
+forward 7
+down 7
+up 7
+up 5
+down 8
+up 2
+forward 2
+down 3
+down 5
+forward 2
+forward 3
+forward 3
+down 1
+down 1
+forward 9
+down 5
+down 7
+forward 7
+forward 5
+up 9
+forward 3
+up 4
+forward 1
+forward 3
+down 4
+forward 9
+down 5
+down 3
+down 5
+forward 6
+down 6
+forward 2
+up 4
+down 4
+forward 2
+down 8
+up 9
+forward 9
+forward 4
+down 8
+forward 2
+forward 5
+forward 1
+forward 5
+up 1
+forward 7
+forward 9
+down 5
+forward 6
+down 1
+forward 6
+down 2
+forward 9
+down 1
+forward 1
+down 4
+down 6
+down 2
+up 7
+up 5
+forward 8
+forward 1
+down 8
+forward 1
+forward 2
+down 8
+forward 7
+down 5
+forward 1
+down 2
+up 7
+forward 7
+down 4
+down 8
+up 6
+up 4
+forward 7
+down 3
+up 5
+down 5
+forward 7
+up 7
+down 6
+forward 8
+down 7
+down 2
+up 3
+down 9
+down 7
+down 8
+forward 4
+forward 3
+forward 9
+forward 6
+up 7
+forward 5
+down 4
+down 5
+forward 6
+up 9
+down 6
+down 7
+down 8
+down 9
+down 4
+up 5
+down 4
+forward 5
+forward 3
+down 3
+down 7
+up 8
+forward 5
+down 8
+down 1
+down 6
+down 9
+up 4
+up 1
+down 8
+down 3
+down 8
+up 4
+down 7
+down 6
+forward 7
+up 9
+down 4
+down 1
+down 6
+down 2
+forward 7
+down 2
+down 7
+forward 3
+forward 6
+up 2
+down 4
+up 1
+forward 4
+up 2
+down 4
+up 3
+down 8
+up 9
+forward 8
+down 5
+down 4
+forward 8
+down 1
+down 8
+forward 3
+down 4
+forward 5
+down 5
+up 9
+forward 1
+down 9
+down 1
+forward 4
+forward 9
+up 1
+forward 4
+forward 2
+down 9
+down 1
+forward 1
+down 2
+forward 2
+down 5
+up 4
+up 7
+down 8
+forward 3
+up 1
+down 4
+forward 5
+up 2
+forward 4
+forward 2
+down 1
+forward 4
+forward 1
+up 5
+forward 8
+forward 4
+forward 1
+down 6
+down 7
+up 4
+forward 9
+up 6
+forward 9
+forward 3
+forward 2
+down 2
+forward 7
+up 7
+forward 7
+down 4
+down 6
+forward 8
+up 8
+forward 1
+forward 3
+forward 3
+up 8
+down 1
+up 9
+forward 1
+up 1
+down 7
+forward 7
+up 5
+forward 5
+up 9
+up 3
+forward 2
+forward 6
+up 1
+forward 5
+up 1
+down 3
+down 5
+forward 8
+up 5
+forward 1
+down 8
+forward 4
+down 3
+down 1
+down 7
+forward 7
+forward 3
+down 4
+forward 9
+up 5
+down 2
+forward 4
+up 7
+up 5
+forward 3
+down 7
+forward 8
+up 4
+up 2
+forward 2
+down 9
+forward 4
+down 5
+forward 2
+down 9
+down 5
+up 7
+forward 3
+down 8
+forward 7
+forward 9
+down 5
+forward 2
+forward 9
+forward 5
+down 5
+up 4
+down 6
+down 6
+forward 8
+forward 5
+forward 4
+down 5
+forward 2
+down 8
+forward 9
+down 1
+down 8
+down 7
+up 9
+down 7
+down 1
+forward 7
+forward 9
+forward 8
+up 2
+forward 6
+down 3
+down 6
+up 4
+forward 4
+forward 5
+down 9
+down 5
+forward 1
+down 2
+forward 1
+down 1
+up 1
+up 7
+up 5
+forward 6
+forward 3
diff --git a/2021/02/puzzle-1.awk b/2021/02/puzzle-1.awk
new file mode 100755
index 0000000..1caefc6
--- /dev/null
+++ b/2021/02/puzzle-1.awk
@@ -0,0 +1,6 @@
+#!/usr/bin/env -S awk -f
+
+/forward/ { hor += $2 }
+/up/      { ver -= $2 }
+/down/    { ver += $2 }
+END       { print hor * ver }
diff --git a/2021/02/puzzle-2.awk b/2021/02/puzzle-2.awk
new file mode 100755
index 0000000..73fe23e
--- /dev/null
+++ b/2021/02/puzzle-2.awk
@@ -0,0 +1,6 @@
+#!/usr/bin/env -S awk -f
+
+/forward/ { hor += $2; ver += aim * $2 }
+/up/      { aim -= $2 }
+/down/    { aim += $2 }
+END       { print hor * ver }