add day 10 solution

Author: horo42

Diff for: 10/input.txt

@@ -0,0 +1,145 @@
+noop
+noop
+noop
+addx 6
+noop
+addx 30
+addx -26
+noop
+addx 5
+noop
+noop
+noop
+noop
+addx 5
+addx -5
+addx 6
+addx 5
+addx -1
+addx 5
+noop
+noop
+addx -14
+addx -18
+addx 39
+addx -39
+addx 25
+addx -22
+addx 2
+addx 5
+addx 2
+addx 3
+addx -2
+addx 2
+noop
+addx 3
+addx 2
+addx 2
+noop
+addx 3
+noop
+addx 3
+addx 2
+addx 5
+addx 4
+addx -18
+addx 17
+addx -38
+addx 5
+addx 2
+addx -5
+addx 27
+addx -19
+noop
+addx 3
+addx 4
+noop
+noop
+addx 5
+addx -1
+noop
+noop
+addx 4
+addx 5
+addx 2
+addx -4
+addx 5
+noop
+addx -11
+addx 16
+addx -36
+noop
+addx 5
+noop
+addx 28
+addx -23
+noop
+noop
+noop
+addx 21
+addx -18
+noop
+addx 3
+addx 2
+addx 2
+addx 5
+addx 1
+noop
+noop
+addx 4
+noop
+noop
+noop
+noop
+noop
+addx 8
+addx -40
+noop
+addx 7
+noop
+addx -2
+addx 5
+addx 2
+addx 25
+addx -31
+addx 9
+addx 5
+addx 2
+addx 2
+addx 3
+addx -2
+noop
+addx 3
+addx 2
+noop
+addx 7
+addx -2
+addx 5
+addx -40
+addx 20
+addx -12
+noop
+noop
+noop
+addx -5
+addx 7
+addx 7
+noop
+addx -1
+addx 1
+addx 5
+addx 3
+addx -2
+addx 2
+noop
+addx 3
+addx 2
+noop
+noop
+noop
+noop
+addx 7
+noop
+noop
+noop
+noop

Diff for: 10/part1.rb

@@ -0,0 +1,24 @@
+#!/usr/bin/env ruby
+
+$signalStrengths = []
+$cycle = $x = 1
+ops = File.readlines("input.txt", chomp: true).reverse
+
+while not ops.empty? do
+    (op, n) = ops.pop()&.split(" ")
+    if op == "noop" or op == nil then
+    elsif op == "_addx" then
+        $x += n.to_i
+        next
+    elsif op == "addx" then
+        ops.push("_addx " + n, nil)
+    end
+
+    # Tick
+    if $cycle >= 20 and ($cycle - 20) % 40 == 0 then
+        $signalStrengths.push($cycle * $x)
+    end
+    $cycle += 1
+end
+
+p $signalStrengths.sum

Diff for: 10/part2.rb

@@ -0,0 +1,23 @@
+#!/usr/bin/env ruby
+
+$screen = []
+$cycle = 0
+$x = 1
+ops = File.readlines("input.txt", chomp: true).reverse
+
+while not ops.empty? do
+    (op, n) = ops.pop()&.split(" ")
+    if op == "noop" or op == nil then
+    elsif op == "_addx" then
+        $x += n.to_i
+        next
+    elsif op == "addx" then
+        ops.push("_addx " + n, nil)
+    end
+
+    # Tick
+    $screen.push(($cycle % 40).between?($x - 1, $x + 1) ? "#" : " ")
+    $cycle += 1
+end
+
+$screen.each_slice(40) { |slice| p slice.join() }