From c7348e1e2a333c2624e39090befb3c2bb1031dfd Mon Sep 17 00:00:00 2001
From: Bas Dado <bas@gametailors.com>
Date: Mon, 16 Dec 2024 00:47:06 +0100
Subject: [PATCH] Solved day 14

---
 input/day14.txt         | 500 ++++++++++++++++++++++++++++++++++++++++
 input/day14_example.txt |  12 +
 src/day14.rs            | 154 +++++++++++++
 src/main.rs             |   3 +
 4 files changed, 669 insertions(+)
 create mode 100644 input/day14.txt
 create mode 100644 input/day14_example.txt
 create mode 100644 src/day14.rs

diff --git a/input/day14.txt b/input/day14.txt
new file mode 100644
index 0000000..9fd7f8e
--- /dev/null
+++ b/input/day14.txt
@@ -0,0 +1,500 @@
+p=58,57 v=-51,-38
+p=26,92 v=-82,30
+p=51,30 v=21,-47
+p=29,38 v=37,60
+p=29,23 v=59,-19
+p=7,38 v=-61,12
+p=83,51 v=58,-56
+p=84,94 v=62,61
+p=79,93 v=-95,-32
+p=59,34 v=88,93
+p=29,86 v=25,79
+p=24,6 v=6,23
+p=25,25 v=69,-47
+p=76,102 v=-45,69
+p=39,24 v=-79,19
+p=16,46 v=45,-62
+p=65,41 v=-47,-68
+p=63,19 v=28,-88
+p=53,61 v=51,12
+p=72,37 v=-23,56
+p=4,65 v=-35,80
+p=96,89 v=65,41
+p=76,71 v=83,-41
+p=31,41 v=-8,-42
+p=53,4 v=-38,-71
+p=70,36 v=80,-68
+p=14,37 v=-6,-78
+p=29,88 v=53,2
+p=39,15 v=-78,-96
+p=100,63 v=63,84
+p=37,23 v=71,93
+p=19,99 v=-30,67
+p=5,76 v=60,69
+p=83,96 v=7,-26
+p=84,78 v=32,49
+p=59,29 v=70,73
+p=56,27 v=27,97
+p=17,6 v=16,-30
+p=33,77 v=-67,73
+p=36,60 v=-29,-95
+p=66,7 v=3,-16
+p=22,74 v=91,12
+p=71,33 v=-98,6
+p=44,93 v=30,-1
+p=59,23 v=68,-75
+p=98,33 v=11,-72
+p=97,22 v=87,-74
+p=78,81 v=53,24
+p=80,54 v=-57,-36
+p=63,25 v=54,16
+p=5,85 v=-38,-71
+p=83,37 v=84,82
+p=93,15 v=-40,54
+p=34,89 v=-76,98
+p=54,19 v=4,-18
+p=33,52 v=-34,72
+p=90,74 v=9,51
+p=21,12 v=44,83
+p=42,43 v=72,41
+p=16,85 v=-36,88
+p=47,4 v=-52,-30
+p=0,69 v=88,81
+p=57,33 v=51,64
+p=56,26 v=-71,94
+p=63,34 v=-71,-78
+p=74,100 v=-21,-61
+p=69,88 v=58,77
+p=46,60 v=-69,-30
+p=62,44 v=26,-70
+p=38,84 v=98,-75
+p=93,26 v=-62,-4
+p=71,82 v=42,-21
+p=16,45 v=93,74
+p=40,31 v=21,-76
+p=12,42 v=-60,-68
+p=73,35 v=-7,-14
+p=19,42 v=-9,-72
+p=48,79 v=-27,63
+p=73,57 v=30,14
+p=96,2 v=83,54
+p=40,10 v=46,81
+p=88,8 v=-92,-20
+p=31,63 v=31,-51
+p=29,9 v=-66,-2
+p=8,53 v=12,39
+p=33,21 v=19,-84
+p=46,33 v=-30,6
+p=20,35 v=-63,84
+p=72,18 v=-20,23
+p=82,89 v=7,-75
+p=23,3 v=-87,34
+p=77,91 v=-53,-80
+p=36,4 v=-5,44
+p=22,1 v=-55,-84
+p=7,6 v=-49,-85
+p=38,74 v=-5,53
+p=19,87 v=-88,67
+p=84,47 v=73,-15
+p=36,67 v=22,-54
+p=78,10 v=55,-24
+p=55,51 v=-26,2
+p=0,27 v=63,-76
+p=85,11 v=-17,50
+p=52,16 v=-47,42
+p=0,14 v=47,69
+p=82,8 v=7,87
+p=13,92 v=86,-56
+p=11,11 v=-70,87
+p=89,74 v=80,-22
+p=23,60 v=-11,37
+p=0,67 v=-13,24
+p=14,33 v=37,29
+p=68,94 v=85,4
+p=64,23 v=53,81
+p=96,35 v=84,76
+p=19,29 v=-45,56
+p=72,19 v=-71,-90
+p=9,36 v=90,-33
+p=59,52 v=-20,80
+p=50,100 v=76,85
+p=78,57 v=54,-81
+p=27,84 v=73,-48
+p=81,65 v=-42,-7
+p=55,76 v=15,-91
+p=86,87 v=-92,-7
+p=57,76 v=30,-3
+p=28,15 v=81,79
+p=58,96 v=3,36
+p=52,69 v=76,-60
+p=61,88 v=79,30
+p=15,70 v=91,22
+p=80,5 v=3,52
+p=85,22 v=83,60
+p=49,8 v=-28,-59
+p=100,59 v=66,39
+p=100,100 v=62,36
+p=74,75 v=-72,59
+p=20,34 v=93,-74
+p=30,63 v=44,55
+p=71,101 v=29,-92
+p=57,59 v=77,-56
+p=84,29 v=25,53
+p=41,81 v=-33,-79
+p=45,31 v=-2,39
+p=11,89 v=83,-19
+p=7,67 v=-52,-59
+p=29,44 v=-6,78
+p=48,7 v=-3,23
+p=36,17 v=92,25
+p=1,29 v=-88,-41
+p=47,55 v=75,-56
+p=10,64 v=-35,-91
+p=5,82 v=-87,26
+p=19,22 v=13,-82
+p=43,55 v=-77,6
+p=71,59 v=-95,78
+p=49,45 v=-25,65
+p=31,72 v=-82,-83
+p=71,59 v=4,-25
+p=88,2 v=54,-59
+p=64,67 v=-28,92
+p=68,75 v=-43,-11
+p=34,66 v=-1,-87
+p=28,63 v=50,-62
+p=9,93 v=57,-67
+p=58,57 v=-22,41
+p=21,59 v=67,8
+p=28,24 v=-53,-14
+p=76,88 v=-19,65
+p=96,97 v=35,-20
+p=28,93 v=42,-73
+p=39,70 v=-56,84
+p=77,19 v=-66,52
+p=68,31 v=1,52
+p=99,23 v=-41,81
+p=84,23 v=-27,60
+p=26,59 v=59,67
+p=96,83 v=-63,-98
+p=67,65 v=-65,80
+p=92,78 v=10,59
+p=75,14 v=13,38
+p=15,64 v=65,80
+p=46,99 v=-53,63
+p=12,15 v=-10,-80
+p=55,11 v=-23,-43
+p=33,99 v=-86,41
+p=98,55 v=-77,-18
+p=49,48 v=-45,21
+p=100,9 v=-93,-12
+p=60,87 v=-99,-9
+p=55,101 v=-99,71
+p=13,18 v=39,-88
+p=33,88 v=-56,20
+p=31,15 v=-27,-6
+p=49,13 v=-82,-80
+p=14,79 v=85,-26
+p=22,74 v=-4,-44
+p=97,8 v=83,38
+p=51,4 v=-85,-10
+p=34,46 v=56,24
+p=14,64 v=-9,55
+p=50,102 v=-55,36
+p=34,77 v=72,-83
+p=87,57 v=8,35
+p=52,65 v=-49,-21
+p=15,47 v=-36,-6
+p=22,26 v=-83,91
+p=27,38 v=65,2
+p=78,29 v=-44,72
+p=14,58 v=-77,-92
+p=9,75 v=39,90
+p=17,95 v=-86,36
+p=88,53 v=-96,73
+p=38,92 v=-8,20
+p=48,96 v=26,61
+p=80,82 v=84,-17
+p=35,99 v=23,-53
+p=93,58 v=90,-54
+p=49,25 v=48,-32
+p=65,30 v=73,-45
+p=39,59 v=23,47
+p=6,67 v=52,-48
+p=59,26 v=-25,-78
+p=23,3 v=-33,83
+p=12,49 v=-12,-68
+p=42,66 v=-79,55
+p=52,94 v=76,1
+p=28,33 v=21,-10
+p=10,96 v=36,9
+p=36,66 v=-51,47
+p=40,32 v=71,62
+p=94,71 v=36,-3
+p=50,9 v=46,44
+p=68,48 v=58,-54
+p=12,87 v=53,40
+p=52,92 v=-23,-92
+p=13,68 v=90,82
+p=18,58 v=66,12
+p=72,89 v=5,1
+p=37,77 v=-4,90
+p=17,89 v=-55,10
+p=47,30 v=-60,49
+p=6,79 v=54,-15
+p=89,46 v=-41,-25
+p=95,65 v=-64,82
+p=57,29 v=3,-80
+p=79,51 v=76,-8
+p=59,97 v=-48,-67
+p=68,12 v=53,-20
+p=1,27 v=-88,31
+p=61,84 v=2,34
+p=52,76 v=-51,-79
+p=28,90 v=22,57
+p=38,78 v=-52,55
+p=81,52 v=78,-74
+p=8,79 v=88,-13
+p=52,94 v=-51,-38
+p=39,12 v=-83,7
+p=46,97 v=-20,7
+p=28,23 v=94,-84
+p=30,49 v=-31,4
+p=50,92 v=99,54
+p=1,32 v=76,55
+p=44,12 v=-57,-95
+p=67,60 v=78,-54
+p=46,78 v=-99,84
+p=48,74 v=34,56
+p=19,39 v=26,-19
+p=21,8 v=-84,17
+p=80,74 v=95,-3
+p=21,6 v=69,-28
+p=35,98 v=-84,-61
+p=87,62 v=-91,78
+p=66,71 v=73,-34
+p=42,24 v=44,95
+p=89,22 v=-72,26
+p=54,67 v=-97,-87
+p=78,17 v=-77,87
+p=92,63 v=91,-1
+p=59,56 v=-36,92
+p=11,50 v=-84,99
+p=28,83 v=71,-42
+p=80,48 v=-44,2
+p=41,3 v=-5,89
+p=84,71 v=-68,14
+p=87,79 v=-41,65
+p=7,101 v=68,-96
+p=18,7 v=-84,77
+p=51,70 v=74,-52
+p=41,20 v=-68,-17
+p=32,19 v=49,15
+p=1,68 v=87,84
+p=86,60 v=1,45
+p=98,46 v=88,39
+p=92,42 v=-95,78
+p=93,86 v=-93,47
+p=37,92 v=73,-19
+p=100,42 v=-85,-14
+p=33,84 v=-30,-69
+p=32,49 v=1,38
+p=51,12 v=-51,-88
+p=96,49 v=44,77
+p=49,54 v=-4,33
+p=71,90 v=-48,-3
+p=65,49 v=-43,-3
+p=20,70 v=-85,86
+p=18,95 v=40,-25
+p=84,16 v=4,97
+p=94,43 v=-94,60
+p=54,22 v=24,-14
+p=63,4 v=70,-77
+p=88,68 v=42,48
+p=60,1 v=-24,-94
+p=33,83 v=97,-40
+p=71,47 v=-17,-60
+p=42,65 v=23,66
+p=13,93 v=13,-57
+p=14,91 v=67,-3
+p=47,34 v=52,41
+p=66,63 v=-10,57
+p=64,19 v=27,-80
+p=23,87 v=-58,67
+p=50,49 v=24,-29
+p=48,38 v=-76,-41
+p=30,87 v=98,55
+p=79,60 v=32,78
+p=66,16 v=-98,-37
+p=80,8 v=7,85
+p=64,101 v=89,7
+p=86,93 v=9,-44
+p=14,81 v=92,57
+p=32,39 v=-81,2
+p=65,76 v=56,-21
+p=5,102 v=-86,3
+p=7,87 v=39,73
+p=91,12 v=-42,-92
+p=54,41 v=24,66
+p=81,43 v=-45,70
+p=29,72 v=20,-50
+p=8,23 v=-58,93
+p=89,62 v=30,74
+p=17,18 v=-82,-4
+p=27,92 v=69,7
+p=68,10 v=5,48
+p=72,19 v=-73,15
+p=44,20 v=-51,-53
+p=97,27 v=91,-53
+p=60,72 v=37,-32
+p=24,83 v=60,-84
+p=82,64 v=-43,43
+p=87,5 v=-42,17
+p=62,17 v=52,-53
+p=64,41 v=-82,98
+p=35,44 v=17,-95
+p=46,50 v=-76,-95
+p=90,58 v=58,-33
+p=76,22 v=-44,-86
+p=3,90 v=-11,67
+p=75,36 v=-69,-4
+p=0,73 v=-38,28
+p=80,58 v=-5,-47
+p=49,41 v=73,-14
+p=39,42 v=-54,70
+p=67,45 v=-18,-23
+p=43,29 v=-35,-91
+p=74,70 v=-7,-21
+p=81,20 v=-70,4
+p=41,3 v=-4,-24
+p=78,38 v=-43,-6
+p=55,91 v=77,79
+p=89,25 v=-67,56
+p=36,11 v=-31,81
+p=81,68 v=6,-54
+p=19,64 v=13,-83
+p=43,28 v=-47,53
+p=27,38 v=94,37
+p=4,23 v=88,-82
+p=59,98 v=54,71
+p=23,37 v=43,64
+p=21,20 v=-80,-43
+p=74,15 v=-49,50
+p=26,99 v=78,-78
+p=55,96 v=2,69
+p=92,21 v=-95,-88
+p=50,62 v=7,-61
+p=82,38 v=89,-76
+p=63,12 v=2,56
+p=95,55 v=87,41
+p=59,48 v=75,-68
+p=82,92 v=58,-36
+p=40,76 v=-55,-34
+p=36,48 v=50,-19
+p=5,71 v=32,76
+p=55,39 v=50,-70
+p=0,85 v=41,-79
+p=52,48 v=-26,16
+p=65,86 v=-47,-3
+p=68,89 v=30,-88
+p=7,4 v=10,15
+p=57,71 v=80,10
+p=75,0 v=32,9
+p=18,95 v=-59,26
+p=26,42 v=44,-29
+p=52,17 v=-28,48
+p=63,3 v=79,46
+p=61,68 v=-75,-48
+p=88,96 v=5,79
+p=26,89 v=22,22
+p=64,38 v=-24,62
+p=44,24 v=24,-78
+p=26,39 v=-66,-71
+p=15,40 v=40,-33
+p=85,35 v=-93,-70
+p=8,19 v=-65,-72
+p=40,44 v=-82,-47
+p=63,80 v=28,20
+p=45,75 v=-28,-79
+p=24,72 v=-58,-71
+p=96,99 v=-44,-65
+p=91,84 v=54,-27
+p=55,47 v=80,-13
+p=50,35 v=87,-57
+p=76,98 v=-99,-98
+p=72,67 v=80,57
+p=69,38 v=68,-55
+p=50,30 v=46,64
+p=2,67 v=92,-44
+p=22,7 v=-78,45
+p=74,12 v=52,13
+p=11,74 v=1,76
+p=55,55 v=-67,-55
+p=38,63 v=42,62
+p=90,85 v=-65,94
+p=20,36 v=-8,68
+p=50,57 v=-98,-83
+p=32,69 v=-6,30
+p=30,35 v=97,-74
+p=4,81 v=95,-88
+p=70,86 v=-47,94
+p=99,72 v=33,-89
+p=48,59 v=74,-93
+p=95,98 v=-66,36
+p=6,64 v=96,-14
+p=88,19 v=85,-80
+p=16,41 v=-35,-39
+p=70,71 v=81,20
+p=85,58 v=58,8
+p=59,40 v=-78,-25
+p=51,39 v=-25,35
+p=99,52 v=42,38
+p=91,18 v=74,-14
+p=65,86 v=28,67
+p=92,50 v=64,6
+p=86,97 v=57,-32
+p=87,17 v=59,-51
+p=36,59 v=74,68
+p=19,11 v=-88,7
+p=38,88 v=72,90
+p=38,45 v=-4,-62
+p=59,78 v=-59,28
+p=92,13 v=44,80
+p=35,53 v=-28,-2
+p=87,22 v=-68,-24
+p=20,64 v=-20,-33
+p=83,76 v=-68,55
+p=89,61 v=60,-37
+p=2,35 v=37,31
+p=12,62 v=-14,-54
+p=7,97 v=-10,-48
+p=83,99 v=84,-26
+p=74,0 v=-20,-26
+p=34,10 v=-80,-84
+p=14,1 v=60,-30
+p=12,94 v=15,-38
+p=36,46 v=22,-41
+p=35,69 v=42,-43
+p=16,96 v=41,1
+p=8,24 v=-10,21
+p=60,89 v=3,89
+p=70,13 v=49,-28
+p=9,49 v=-10,39
+p=100,31 v=-64,93
+p=57,44 v=-72,-30
+p=29,25 v=96,-8
+p=19,75 v=-34,-79
+p=26,18 v=94,19
+p=6,9 v=-61,-10
+p=24,23 v=-33,-47
+p=23,56 v=-71,25
+p=3,23 v=12,60
+p=73,14 v=32,81
+p=15,41 v=-9,-37
+p=36,63 v=-6,82
+p=71,56 v=-21,-25
+p=60,90 v=78,3
+p=52,37 v=-4,-47
+p=52,61 v=54,20
+p=66,84 v=31,-35
+p=35,8 v=46,-26
+p=90,28 v=-17,-10
diff --git a/input/day14_example.txt b/input/day14_example.txt
new file mode 100644
index 0000000..72a324a
--- /dev/null
+++ b/input/day14_example.txt
@@ -0,0 +1,12 @@
+p=0,4 v=3,-3
+p=6,3 v=-1,-3
+p=10,3 v=-1,2
+p=2,0 v=2,-1
+p=0,0 v=1,3
+p=3,0 v=-2,-2
+p=7,6 v=-1,-3
+p=3,0 v=-1,-2
+p=9,3 v=2,3
+p=7,3 v=-1,2
+p=2,4 v=2,-3
+p=9,5 v=-3,-3
\ No newline at end of file
diff --git a/src/day14.rs b/src/day14.rs
new file mode 100644
index 0000000..25a10dd
--- /dev/null
+++ b/src/day14.rs
@@ -0,0 +1,154 @@
+use crate::day_solver::DaySolver;
+#[cfg(test)]
+use crate::util::read_file;
+use crate::util::{Coord, Grid};
+
+pub struct Day14 {
+    robots: Vec<Robot>
+}
+
+#[derive(Debug, Copy, Clone)]
+struct Robot {
+    p: Coord<i32>,
+    v: Coord<i32>
+}
+
+impl Robot {
+    fn step(&mut self, w: i32, h: i32) {
+        self.p = self.p.add(&self.v);
+        if self.p.x >= w { self.p.x -= w; }
+        if self.p.x < 0 { self.p.x += w; }
+        if self.p.y >= h { self.p.y -= h; }
+        if self.p.y < 0 { self.p.y += h; }
+    }
+}
+
+
+impl Day14 {
+
+    pub fn create(input: String) -> Self {
+        return Day14 {
+            robots: input.lines()
+                .filter_map(|l| l[2..].split_once(" v="))
+                .map(|(p, v)| Robot {
+                    p: p.split_once(",").map(|(x, y)| Coord::new(x.parse().unwrap(), y.parse().unwrap())).unwrap(),
+                    v: v.split_once(",").map(|(x, y)| Coord::new(x.parse().unwrap(), y.parse().unwrap())).unwrap()
+                })
+                .collect()
+        }
+    }
+
+    #[allow(dead_code)]
+    fn print(&self, robots: &Vec<Robot>) {
+
+        let (w, h) = self.map_size();
+        let mut grid = Grid {
+            data: vec![0; (w*h).try_into().unwrap()],
+            width: w.try_into().unwrap(),
+            default: None
+        };
+
+        for r in robots {
+            let x = r.p.x.try_into().unwrap();
+            let y = r.p.y.try_into().unwrap();
+            grid.set(x, y, grid.get(x, y) + 1);
+        }
+
+        let print_grid = Grid {
+            data: grid.data.iter().map(|g| if g > &0 { '#' } else { ' ' } ).collect(),
+            width: grid.width,
+            default: None
+        };
+
+        print_grid.print();
+    }
+
+    fn map_size(&self) -> (i32, i32) {
+        // First we have to know if we're in the example case or the real case, which we guess by checking if any robots are outside a 11 by 7 area.
+        if self.robots.iter().any(|r| r.p.x > 11 || r.p.y > 7) {
+            (101, 103)
+        } else {
+            (11, 7)
+        }
+    }
+
+    fn variance(data: &[i32]) -> f64 {
+
+        let sum = data.iter().sum::<i32>();
+        let n = f64::from(data.len() as u32);
+        let mean = f64::from(sum) / n;
+        (data.iter().map(|x| (f64::from(*x) - mean).powi(2)).sum::<f64>() / (n - 1f64)).sqrt()
+    }
+
+    fn variance_f(data: &[f64]) -> f64 {
+
+        let sum = data.iter().sum::<f64>();
+        let n = f64::from(data.len() as u32);
+        let mean = sum / n;
+        (data.iter().map(|n| (f64::from(*n) - mean).powi(2)).sum::<f64>() / (n - 1f64)).sqrt()
+    }
+}
+
+impl DaySolver for Day14 {
+
+
+    fn solve_part1(&mut self) -> String {
+        let (w, h) = self.map_size();
+
+        let mut robots = self.robots.clone();
+        for _ in 0..100 {
+            for robot in &mut robots {
+                robot.step(w, h);
+            }
+        }
+
+        (robots.iter().filter(|r| r.p.x < w / 2 && r.p.y < h / 2).count() *
+            robots.iter().filter(|r| r.p.x > w / 2 && r.p.y < h / 2).count() *
+            robots.iter().filter(|r| r.p.x < w / 2 && r.p.y > h / 2).count() *
+            robots.iter().filter(|r| r.p.x > w / 2 && r.p.y > h / 2).count()).to_string()
+    }
+
+    fn solve_part2(&mut self) -> String {
+
+        let (w, h) = self.map_size();
+
+        let mut robots = self.robots.clone();
+        let mut x_variances = Vec::new();
+        let mut y_variances = Vec::new();
+        // We're gonna simulate the robots, and try to find anomalies in the variance in x and y positions.
+        for i in 1..10000 {
+
+            for robot in &mut robots {
+                robot.step(w, h);
+            }
+
+            let var_x = Self::variance(&robots.iter().map(|r| r.p.x).collect::<Vec<i32>>());
+            let var_y = Self::variance(&robots.iter().map(|r| r.p.y).collect::<Vec<i32>>());
+
+            // To find anomalies, we find the variance in the variance of X, and if the variance in this sample is more than 3 times the variance of the variance
+            // away from usual, we found the outlier!
+            let var_var_x = Self::variance_f(&x_variances);
+            let var_var_y = Self::variance_f(&y_variances);
+
+            x_variances.push(var_x);
+            y_variances.push(var_y);
+
+            // We assume 
+            // println!("var: {}, {}", var_x, var_y);
+            if i > 1 && (var_x < x_variances[0] - 3f64 * var_var_x && var_y < y_variances[0] - 3f64 * var_var_y) {
+                // self.print(&robots);
+                return i.to_string();
+            }
+        }
+
+        panic!("Couldn't find easter egg");
+
+
+    }
+}
+
+#[test]
+fn test_part1() {
+    let mut day = Day14::create(read_file("input/day14_example.txt"));
+    assert_eq!("12", day.solve_part1());
+}
diff --git a/src/main.rs b/src/main.rs
index 2a0d043..9c97df3 100644
--- a/src/main.rs
+++ b/src/main.rs
@@ -5,6 +5,7 @@ use crate::day10::Day10;
 use crate::day11::Day11;
 use crate::day12::Day12;
 use crate::day13::Day13;
+use crate::day14::Day14;
 use crate::day2::Day2;
 use crate::day3::Day3;
 use crate::day4::Day4;
@@ -32,6 +33,7 @@ mod day10;
 mod day11;
 mod day12;
 mod day13;
+mod day14;
 
 const DEFAULT_BENCHMARK_AMOUNT: u32 = 100;
 
@@ -116,6 +118,7 @@ fn build_day_solver(day: u8, input: String) -> Option<Box<dyn DaySolver>> {
         11 => Some(Box::new(Day11::create(input))),
         12 => Some(Box::new(Day12::create(input))),
         13 => Some(Box::new(Day13::create(input))),
+        14 => Some(Box::new(Day14::create(input))),
         _ => None
     }
 }