diff --git a/2019/13/input b/2019/13/input
new file mode 100644
index 0000000..7f0b46c
--- /dev/null
+++ b/2019/13/input
@@ -0,0 +1 @@
+1,380,379,385,1008,2151,871073,381,1005,381,12,99,109,2152,1102,1,0,383,1101,0,0,382,21001,382,0,1,20102,1,383,2,21102,37,1,0,1106,0,578,4,382,4,383,204,1,1001,382,1,382,1007,382,36,381,1005,381,22,1001,383,1,383,1007,383,21,381,1005,381,18,1006,385,69,99,104,-1,104,0,4,386,3,384,1007,384,0,381,1005,381,94,107,0,384,381,1005,381,108,1106,0,161,107,1,392,381,1006,381,161,1102,1,-1,384,1106,0,119,1007,392,34,381,1006,381,161,1101,0,1,384,21002,392,1,1,21102,1,19,2,21102,0,1,3,21102,1,138,0,1106,0,549,1,392,384,392,20101,0,392,1,21102,19,1,2,21102,3,1,3,21101,161,0,0,1106,0,549,1101,0,0,384,20001,388,390,1,21001,389,0,2,21102,1,180,0,1105,1,578,1206,1,213,1208,1,2,381,1006,381,205,20001,388,390,1,20101,0,389,2,21102,205,1,0,1105,1,393,1002,390,-1,390,1101,1,0,384,20102,1,388,1,20001,389,391,2,21101,228,0,0,1105,1,578,1206,1,261,1208,1,2,381,1006,381,253,21002,388,1,1,20001,389,391,2,21101,0,253,0,1105,1,393,1002,391,-1,391,1101,1,0,384,1005,384,161,20001,388,390,1,20001,389,391,2,21102,1,279,0,1105,1,578,1206,1,316,1208,1,2,381,1006,381,304,20001,388,390,1,20001,389,391,2,21102,304,1,0,1105,1,393,1002,390,-1,390,1002,391,-1,391,1102,1,1,384,1005,384,161,21002,388,1,1,20101,0,389,2,21102,0,1,3,21101,338,0,0,1106,0,549,1,388,390,388,1,389,391,389,21001,388,0,1,20102,1,389,2,21101,0,4,3,21102,1,365,0,1105,1,549,1007,389,20,381,1005,381,75,104,-1,104,0,104,0,99,0,1,0,0,0,0,0,0,180,16,16,1,1,18,109,3,22101,0,-2,1,21201,-1,0,2,21102,1,0,3,21101,414,0,0,1105,1,549,22102,1,-2,1,21201,-1,0,2,21102,429,1,0,1106,0,601,1202,1,1,435,1,386,0,386,104,-1,104,0,4,386,1001,387,-1,387,1005,387,451,99,109,-3,2105,1,0,109,8,22202,-7,-6,-3,22201,-3,-5,-3,21202,-4,64,-2,2207,-3,-2,381,1005,381,492,21202,-2,-1,-1,22201,-3,-1,-3,2207,-3,-2,381,1006,381,481,21202,-4,8,-2,2207,-3,-2,381,1005,381,518,21202,-2,-1,-1,22201,-3,-1,-3,2207,-3,-2,381,1006,381,507,2207,-3,-4,381,1005,381,540,21202,-4,-1,-1,22201,-3,-1,-3,2207,-3,-4,381,1006,381,529,22101,0,-3,-7,109,-8,2106,0,0,109,4,1202,-2,36,566,201,-3,566,566,101,639,566,566,1201,-1,0,0,204,-3,204,-2,204,-1,109,-4,2106,0,0,109,3,1202,-1,36,593,201,-2,593,593,101,639,593,593,21001,0,0,-2,109,-3,2105,1,0,109,3,22102,21,-2,1,22201,1,-1,1,21101,383,0,2,21101,0,250,3,21101,756,0,4,21101,630,0,0,1106,0,456,21201,1,1395,-2,109,-3,2105,1,0,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,2,2,0,2,0,0,0,0,0,0,2,2,0,2,2,0,2,2,0,0,2,2,2,0,0,0,0,2,2,2,0,1,1,0,0,0,0,2,0,2,2,0,0,2,2,0,0,2,2,0,0,2,2,2,2,0,2,0,2,2,2,2,0,2,0,0,0,1,1,0,0,2,2,0,0,0,0,0,0,2,2,2,0,0,0,0,0,2,0,2,0,0,0,0,0,2,0,2,2,0,2,0,0,1,1,0,0,0,2,0,0,0,2,0,0,0,0,0,0,0,2,0,0,2,0,2,0,0,0,0,0,0,0,2,2,2,0,2,0,1,1,0,0,2,2,2,2,0,0,0,0,0,0,0,0,0,2,0,0,0,2,2,0,0,0,2,0,0,0,2,0,2,2,2,0,1,1,0,0,0,0,2,2,2,2,2,0,2,0,0,0,0,2,0,2,0,2,0,2,0,0,2,2,0,2,0,2,0,2,0,0,1,1,0,2,2,0,2,2,2,2,0,2,2,2,2,0,0,2,0,0,2,0,2,0,0,0,2,0,0,2,2,2,0,0,0,0,1,1,0,0,2,0,0,2,2,0,0,0,0,2,2,0,0,2,0,0,0,2,2,0,2,0,2,2,0,2,2,0,0,0,2,0,1,1,0,0,0,0,0,0,0,2,0,0,0,2,0,2,0,0,0,2,2,2,2,0,2,2,0,2,2,0,0,0,2,0,0,0,1,1,0,0,0,0,0,0,0,0,2,2,2,0,0,0,0,2,0,2,0,0,0,0,2,2,0,2,2,2,0,0,2,0,2,0,1,1,0,0,0,0,2,2,0,2,2,0,2,0,2,2,2,0,0,2,2,0,0,0,0,0,0,2,0,2,2,2,0,2,2,0,1,1,0,2,0,0,2,0,0,0,0,0,2,0,0,2,2,0,2,2,2,0,2,2,0,0,2,2,0,0,2,2,0,0,2,0,1,1,0,2,0,2,0,2,0,2,0,0,2,2,0,0,2,0,0,0,2,0,2,2,0,2,0,0,0,2,0,2,2,0,2,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,3,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,52,20,53,45,54,10,5,35,28,96,68,78,29,94,94,57,42,27,61,91,60,22,54,59,33,71,63,62,97,30,76,40,87,10,30,83,68,41,63,55,24,65,56,57,21,91,17,7,60,94,34,54,75,10,16,88,32,34,41,36,57,39,14,89,23,47,7,94,89,60,56,36,44,77,29,17,93,55,58,62,61,18,50,54,22,75,45,1,29,64,32,97,98,50,37,64,39,61,23,39,61,85,85,10,37,56,84,13,43,91,20,73,77,34,87,33,36,42,48,3,39,6,18,58,38,63,48,38,96,32,72,51,22,37,76,4,95,17,3,79,89,19,12,22,71,98,95,22,82,31,70,98,48,46,6,80,95,98,1,81,27,91,14,98,13,46,21,6,75,59,73,9,52,6,44,92,9,11,65,71,19,52,84,71,38,60,43,10,78,25,22,27,90,4,23,96,19,42,54,80,63,64,26,29,58,75,35,95,38,48,1,47,61,20,74,39,85,33,10,70,90,39,93,61,9,65,19,56,84,59,57,30,76,19,52,66,89,93,19,86,4,67,59,37,28,71,1,21,40,18,92,72,57,63,88,42,17,92,42,88,93,17,19,26,63,31,1,8,76,62,31,49,36,18,19,63,50,50,13,77,22,45,11,92,7,92,69,66,49,34,2,58,61,4,18,26,20,7,51,84,81,38,72,22,83,92,16,97,20,81,25,74,13,84,71,2,81,35,83,6,73,93,60,47,2,98,27,55,68,59,67,63,61,48,65,28,71,56,39,30,93,96,3,47,93,77,11,28,86,79,90,83,39,21,68,2,49,50,78,68,81,97,49,9,44,79,31,69,81,76,93,17,31,66,46,26,18,1,17,72,1,28,47,15,85,50,95,75,52,86,5,35,59,51,41,88,33,9,7,77,1,46,6,40,39,36,52,10,12,34,87,64,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diff --git a/2019/13/src/tile.rs b/2019/13/src/tile.rs
new file mode 100644
index 0000000..988db26
--- /dev/null
+++ b/2019/13/src/tile.rs
@@ -0,0 +1,40 @@
+use std::fmt::{Display, Error, Formatter};
+pub enum Tile {
+    Empty,
+    Wall,
+    Block,
+    Paddle,
+    Ball,
+}
+
+impl Display for Tile {
+    fn fmt(&self, fmt: &mut Formatter) -> Result<(), Error> {
+        let c: char = self.into();
+        write!(fmt, "{}", c)
+    }
+}
+
+impl From<i64> for Tile {
+    fn from(num: i64) -> Self {
+        match num {
+            0 => Tile::Empty,
+            1 => Tile::Wall,
+            2 => Tile::Block,
+            3 => Tile::Paddle,
+            4 => Tile::Ball,
+            _ => unreachable!("Illegal tile ID"),
+        }
+    }
+}
+
+impl Into<char> for &Tile {
+    fn into(self) -> char {
+        match self {
+            Tile::Empty => ' ',
+            Tile::Wall => '█',
+            Tile::Block => '⌂',
+            Tile::Paddle => '_',
+            Tile::Ball => '•',
+        }
+    }
+}
diff --git a/2019/grid/src/lib.rs b/2019/grid/src/lib.rs
index 6e23ff5..a86bf26 100644
--- a/2019/grid/src/lib.rs
+++ b/2019/grid/src/lib.rs
@@ -1,5 +1,7 @@
 use itertools::join;
 use std::collections::HashMap;
+use std::fmt::Display;
+use std::hash::BuildHasher;
 
 #[derive(Hash, PartialEq, Eq, Debug, Clone, Copy)]
 pub struct Position2D {
@@ -23,7 +25,7 @@ fn get_boundaries(input: &[&Position2D]) -> Boundaries {
     Boundaries { x_min, x_max, y_min, y_max }
 }
 
-pub fn draw_ascii<T: std::fmt::Display>(coordinates: &HashMap<Position2D, T>, default: T) -> String {
+pub fn draw_ascii<T: Display, S: BuildHasher>(coordinates: &HashMap<Position2D, T, S>, default: T) -> String {
     let b = get_boundaries(&coordinates.keys().collect::<Vec<_>>());
     join(
         (b.y_min..=b.y_max).rev().map(|y| {
diff --git a/2019/intcode/src/intcomputer.rs b/2019/intcode/src/intcomputer.rs
index 809f25f..2f0b505 100644
--- a/2019/intcode/src/intcomputer.rs
+++ b/2019/intcode/src/intcomputer.rs
@@ -35,12 +35,12 @@ impl IntComputer {
 
     pub fn step(&mut self) -> IntComputerResult {
         match self.cmd_buffer.pop().unwrap_or_else(|| self.decode_next()) {
-            Operation::Halt {} => return IntComputerResult::Halt,
+            Operation::Halt {} => IntComputerResult::Halt,
             op => {
-                if let Some(o) = self.execute(op.to_owned()) {
-                    return IntComputerResult::Output(o);
+                if let Some(o) = self.execute(op) {
+                    IntComputerResult::Output(o)
                 } else {
-                    return IntComputerResult::Continue;
+                    IntComputerResult::Continue
                 }
             }
         }