diff --git a/2024/d20/ex1/ex1.py b/2024/d20/ex1/ex1.py
deleted file mode 100755
index fcacc08..0000000
--- a/2024/d20/ex1/ex1.py
+++ /dev/null
@@ -1,107 +0,0 @@
-#!/usr/bin/env python
-
-import itertools
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-    def neighbours(self) -> Iterator["Point"]:
-        for dx, dy in (
-            (-1, 0),
-            (1, 0),
-            (0, -1),
-            (0, 1),
-        ):
-            yield Point(self.x + dx, self.y + dy)
-
-
-class ParsedMap(NamedTuple):
-    start: Point
-    end: Point
-    tracks: set[Point]
-
-
-MIN_SAVE = 100
-
-
-def solve(input: str) -> int:
-    def parse(input: list[str]) -> ParsedMap:
-        start: Point | None = None
-        end: Point | None = None
-        tracks: set[Point] = set()
-
-        for x, line in enumerate(input):
-            for y, c in enumerate(line):
-                if c == "#":
-                    continue
-                p = Point(x, y)
-                if c == "S":
-                    start = p
-                elif c == "E":
-                    end = p
-                tracks.add(p)
-
-        assert start is not None and end is not None  # Sanity check
-        return ParsedMap(start, end, tracks)
-
-    def flood_distance(start: Point, points: set[Point]) -> dict[Point, int]:
-        res = {start: 0}
-        queue = {start}
-
-        while queue:
-            p = queue.pop()
-            dist = res[p]
-            for n in p.neighbours():
-                if n in res:
-                    continue
-                if n not in points:
-                    continue
-                res[n] = dist + 1
-                queue.add(n)
-
-        return res
-
-    def dist(a: Point, b: Point) -> int:
-        return abs(a.x - b.x) + abs(a.y - b.y)
-
-    def disk(p: Point, radius: int) -> Iterator[Point]:
-        for dx, dy in itertools.product(range(-radius, radius + 1), repeat=2):
-            n = Point(p.x + dx, p.y + dy)
-            if dist(p, n) > radius:
-                continue
-            yield n
-
-    def find_cheats(start: Point, end: Point, tracks: set[Point]) -> int:
-        start_dist = flood_distance(start, tracks)
-        end_dist = flood_distance(end, tracks)
-
-        assert start_dist[end] == end_dist[start]
-        fastest = start_dist[end]
-
-        res = 0
-        for a in tracks:
-            for b in disk(a, 2):
-                if b not in tracks:
-                    continue
-                time = start_dist[a] + dist(a, b) + end_dist[b]
-                if (fastest - time) < MIN_SAVE:
-                    continue
-                res += 1
-        return res
-
-    start, end, tracks = parse(input.splitlines())
-    return find_cheats(start, end, tracks)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2024/d20/ex1/input b/2024/d20/ex1/input
deleted file mode 100644
index 65b0163..0000000
--- a/2024/d20/ex1/input
+++ /dev/null
@@ -1,141 +0,0 @@
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diff --git a/2024/d20/ex2/ex2.py b/2024/d20/ex2/ex2.py
deleted file mode 100755
index 614580a..0000000
--- a/2024/d20/ex2/ex2.py
+++ /dev/null
@@ -1,107 +0,0 @@
-#!/usr/bin/env python
-
-import itertools
-import sys
-from collections.abc import Iterator
-from typing import NamedTuple
-
-
-class Point(NamedTuple):
-    x: int
-    y: int
-
-    def neighbours(self) -> Iterator["Point"]:
-        for dx, dy in (
-            (-1, 0),
-            (1, 0),
-            (0, -1),
-            (0, 1),
-        ):
-            yield Point(self.x + dx, self.y + dy)
-
-
-class ParsedMap(NamedTuple):
-    start: Point
-    end: Point
-    tracks: set[Point]
-
-
-MIN_SAVE = 100
-
-
-def solve(input: str) -> int:
-    def parse(input: list[str]) -> ParsedMap:
-        start: Point | None = None
-        end: Point | None = None
-        tracks: set[Point] = set()
-
-        for x, line in enumerate(input):
-            for y, c in enumerate(line):
-                if c == "#":
-                    continue
-                p = Point(x, y)
-                if c == "S":
-                    start = p
-                elif c == "E":
-                    end = p
-                tracks.add(p)
-
-        assert start is not None and end is not None  # Sanity check
-        return ParsedMap(start, end, tracks)
-
-    def flood_distance(start: Point, points: set[Point]) -> dict[Point, int]:
-        res = {start: 0}
-        queue = {start}
-
-        while queue:
-            p = queue.pop()
-            dist = res[p]
-            for n in p.neighbours():
-                if n in res:
-                    continue
-                if n not in points:
-                    continue
-                res[n] = dist + 1
-                queue.add(n)
-
-        return res
-
-    def dist(a: Point, b: Point) -> int:
-        return abs(a.x - b.x) + abs(a.y - b.y)
-
-    def disk(p: Point, radius: int) -> Iterator[Point]:
-        for dx, dy in itertools.product(range(-radius, radius + 1), repeat=2):
-            n = Point(p.x + dx, p.y + dy)
-            if dist(p, n) > radius:
-                continue
-            yield n
-
-    def find_cheats(start: Point, end: Point, tracks: set[Point]) -> int:
-        start_dist = flood_distance(start, tracks)
-        end_dist = flood_distance(end, tracks)
-
-        assert start_dist[end] == end_dist[start]
-        fastest = start_dist[end]
-
-        res = 0
-        for a in tracks:
-            for b in disk(a, 20):
-                if b not in tracks:
-                    continue
-                time = start_dist[a] + dist(a, b) + end_dist[b]
-                if (fastest - time) < MIN_SAVE:
-                    continue
-                res += 1
-        return res
-
-    start, end, tracks = parse(input.splitlines())
-    return find_cheats(start, end, tracks)
-
-
-def main() -> None:
-    input = sys.stdin.read()
-    print(solve(input))
-
-
-if __name__ == "__main__":
-    main()
diff --git a/2024/d20/ex2/input b/2024/d20/ex2/input
deleted file mode 100644
index 65b0163..0000000
--- a/2024/d20/ex2/input
+++ /dev/null
@@ -1,141 +0,0 @@
-#############################################################################################################################################
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