43 files changed, 84 insertions, 126 deletions
diff --git a/2024/01/python/main.py b/2024/01/python.py
index f920d5d..425f6c7 100644..100755
--- a/2024/01/python/main.py
+++ b/2024/01/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from collections import Counter
 from fileinput import input
 
diff --git a/2024/01/python/pyproject.toml b/2024/01/python/pyproject.toml
deleted file mode 100644
index ed9dd6f..0000000
--- a/2024/01/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-01"
-version = "0.1.0"
-description = "advent of code 2024-01"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/02/python/main.py b/2024/02/python.py
index b4c8c9a..f2c807d 100644..100755
--- a/2024/02/python/main.py
+++ b/2024/02/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 
 reports = [[int(level) for level in report.split()] for report in input()]
diff --git a/2024/02/python/pyproject.toml b/2024/02/python/pyproject.toml
deleted file mode 100644
index 7344524..0000000
--- a/2024/02/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-02"
-version = "0.1.0"
-description = "advent of code 2024-02"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/03/python/main.py b/2024/03/python.py
index f5617b5..f456580 100644..100755
--- a/2024/03/python/main.py
+++ b/2024/03/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import re
 from fileinput import input
 
diff --git a/2024/03/python/pyproject.toml b/2024/03/python/pyproject.toml
deleted file mode 100644
index 683451d..0000000
--- a/2024/03/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-03"
-version = "0.1.0"
-description = "advent of code 2024-03"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/04/python/main.py b/2024/04/python.py
index cc04f04..fe5021b 100644..100755
--- a/2024/04/python/main.py
+++ b/2024/04/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 
 grid = {
diff --git a/2024/04/python/pyproject.toml b/2024/04/python/pyproject.toml
deleted file mode 100644
index 141044b..0000000
--- a/2024/04/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-04"
-version = "0.1.0"
-description = "advent of code 2024-04"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/05/python/main.py b/2024/05/python.py
index e3a10e2..9e81978 100644..100755
--- a/2024/05/python/main.py
+++ b/2024/05/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 from functools import cmp_to_key
 from itertools import takewhile
diff --git a/2024/05/python/pyproject.toml b/2024/05/python/pyproject.toml
deleted file mode 100644
index 720c539..0000000
--- a/2024/05/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-05"
-version = "0.1.0"
-description = "advent of code 2024-05"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/06/python/main.py b/2024/06/python.py
index 5fd6c3d..52b61d0 100644..100755
--- a/2024/06/python/main.py
+++ b/2024/06/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 
 obstacles = set()
diff --git a/2024/06/python/pyproject.toml b/2024/06/python/pyproject.toml
deleted file mode 100644
index 8ad63e7..0000000
--- a/2024/06/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-06"
-version = "0.1.0"
-description = "advent of code 2024-06"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/07/python/main.py b/2024/07/python.py
index 0e72772..008af39 100644..100755
--- a/2024/07/python/main.py
+++ b/2024/07/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 
 lines = [line.strip() for line in input()]
diff --git a/2024/07/python/pyproject.toml b/2024/07/python/pyproject.toml
deleted file mode 100644
index bbd42d3..0000000
--- a/2024/07/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-07"
-version = "0.1.0"
-description = "advent of code 2024-07"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/08/python/main.py b/2024/08/python.py
index c7bb47d..783203b 100644..100755
--- a/2024/08/python/main.py
+++ b/2024/08/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from collections import defaultdict
 from fileinput import input
 from itertools import product
diff --git a/2024/08/python/pyproject.toml b/2024/08/python/pyproject.toml
deleted file mode 100644
index e00a133..0000000
--- a/2024/08/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-08"
-version = "0.1.0"
-description = "advent of code 2024-08"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/09/python/main.py b/2024/09/python.py
index d435163..1cf450e 100644..100755
--- a/2024/09/python/main.py
+++ b/2024/09/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 
 disk = list(input())[0].strip()
diff --git a/2024/09/python/pyproject.toml b/2024/09/python/pyproject.toml
deleted file mode 100644
index 66c042a..0000000
--- a/2024/09/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-09"
-version = "0.1.0"
-description = "advent of code 2024-09"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/10/python/main.py b/2024/10/python.py
index 4e85b49..88892b6 100644..100755
--- a/2024/10/python/main.py
+++ b/2024/10/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 
 grid = [[int(c) for c in line.strip()] for line in input()]
diff --git a/2024/10/python/pyproject.toml b/2024/10/python/pyproject.toml
deleted file mode 100644
index 8458dc5..0000000
--- a/2024/10/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-10"
-version = "0.1.0"
-description = "advent of code 2024-10"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/11/python/main.py b/2024/11/python.py
index 445809a..37f658e 100644..100755
--- a/2024/11/python/main.py
+++ b/2024/11/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 from functools import cache
 from math import floor, log
diff --git a/2024/11/python/pyproject.toml b/2024/11/python/pyproject.toml
deleted file mode 100644
index aa72c8e..0000000
--- a/2024/11/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-11"
-version = "0.1.0"
-description = "advent of code 2024-11"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/12/python/main.py b/2024/12/python.py
index 6faa6f1..81761bc 100644..100755
--- a/2024/12/python/main.py
+++ b/2024/12/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 
 grid = {
diff --git a/2024/12/python/pyproject.toml b/2024/12/python/pyproject.toml
deleted file mode 100644
index b36941b..0000000
--- a/2024/12/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-12"
-version = "0.1.0"
-description = "advent of code 2024-12"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/13/python/main.py b/2024/13/python.py
index de31184..e78e35f 100644..100755
--- a/2024/13/python/main.py
+++ b/2024/13/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import re
 from fileinput import input
 from itertools import batched
diff --git a/2024/13/python/pyproject.toml b/2024/13/python/pyproject.toml
deleted file mode 100644
index aae82b9..0000000
--- a/2024/13/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-13"
-version = "0.1.0"
-description = "advent of code 2024-13"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/14/python/main.py b/2024/14/python.py
index ebfe29c..2bb6cb4 100644..100755
--- a/2024/14/python/main.py
+++ b/2024/14/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 import re
 from fileinput import input
 from itertools import groupby
diff --git a/2024/14/python/pyproject.toml b/2024/14/python/pyproject.toml
deleted file mode 100644
index 45527a8..0000000
--- a/2024/14/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-14"
-version = "0.1.0"
-description = "advent of code 2024-14"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/15/python/main.py b/2024/15/python.py
index a565f00..4cfd48c 100644..100755
--- a/2024/15/python/main.py
+++ b/2024/15/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 from itertools import takewhile
 
diff --git a/2024/15/python/pyproject.toml b/2024/15/python/pyproject.toml
deleted file mode 100644
index 0dfbb68..0000000
--- a/2024/15/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-15"
-version = "0.1.0"
-description = "advent of code 2024-15"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/16/python/main.py b/2024/16/python.py
index f66fe94..fda3714 100644..100755
--- a/2024/16/python/main.py
+++ b/2024/16/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 
 grid = {
diff --git a/2024/16/python/pyproject.toml b/2024/16/python/pyproject.toml
deleted file mode 100644
index d38516f..0000000
--- a/2024/16/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-16"
-version = "0.1.0"
-description = "advent of code 2024-16"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/17/python/main.py b/2024/17/python.py
index a441d40..9ea7de4 100644..100755
--- a/2024/17/python/main.py
+++ b/2024/17/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 from itertools import takewhile, zip_longest
 
diff --git a/2024/17/python/pyproject.toml b/2024/17/python/pyproject.toml
deleted file mode 100644
index daf149a..0000000
--- a/2024/17/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-17"
-version = "0.1.0"
-description = "advent of code 2024-17"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/18/python/main.py b/2024/18/python.py
index 071fa90..1f987c6 100644..100755
--- a/2024/18/python/main.py
+++ b/2024/18/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from bisect import bisect_left
 from collections import deque
 from fileinput import input
diff --git a/2024/18/python/pyproject.toml b/2024/18/python/pyproject.toml
deleted file mode 100644
index f1deef2..0000000
--- a/2024/18/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-18"
-version = "0.1.0"
-description = "advent of code 2024-18"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/19/python/main.py b/2024/19/python.py
index a41156c..efd3272 100644..100755
--- a/2024/19/python/main.py
+++ b/2024/19/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 from functools import cache
 from itertools import takewhile
diff --git a/2024/19/python/pyproject.toml b/2024/19/python/pyproject.toml
deleted file mode 100644
index 539ef74..0000000
--- a/2024/19/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-19"
-version = "0.1.0"
-description = "advent of code 2024-19"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/20/python/main.py b/2024/20/python.py
index bec6ebf..610f1a3 100644..100755
--- a/2024/20/python/main.py
+++ b/2024/20/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from fileinput import input
 
 grid = {
diff --git a/2024/20/python/pyproject.toml b/2024/20/python/pyproject.toml
deleted file mode 100644
index 4031bd1..0000000
--- a/2024/20/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-20"
-version = "0.1.0"
-description = "advent of code 2024-20"
-requires-python = ">=3.13"
-dependencies = []
diff --git a/2024/21/python.py b/2024/21/python.py
new file mode 100755
index 0000000..5873d65
--- /dev/null
+++ b/2024/21/python.py
@@ -0,0 +1,42 @@
+#!/usr/bin/env python3
+
+from fileinput import input
+from functools import cache
+
+seqs = [s.strip() for s in input()]
+
+numpad = {
+    "0": {"^": "2", ">": "A"},
+    "1": {"^": "4", ">": "2"},
+    "2": {"^": "5", ">": "3", "v": "0", "<": "1"},
+    "3": {"^": "6", "v": "A", "<": "2"},
+    "4": {"^": "7", ">": "5", "v": "1"},
+    "5": {"^": "8", ">": "6", "v": "2", "<": "4"},
+    "6": {"^": "9", "v": "3", "<": "5"},
+    "7": {">": "8", "v": "4"},
+    "8": {">": "9", "v": "5", "<": "7"},
+    "9": {"v": "6", "<": "8"},
+    "A": {"^": "3", "<": "0"},
+}
+dirpad = {
+    "^": {">": "A", "v": "v"},
+    ">": {"^": "A", "<": "v"},
+    "v": {"^": "^", ">": ">", "<": "<"},
+    "<": {">": "v"},
+    "A": {"v": ">", "<": "^"},
+}
+
+
+silver = 0
+gold = 0
+
+
+@cache
+def move(a, b, n):
+    pass
+
+
+print(seqs)
+
+print("silver:", silver)
+print("gold:", gold)
diff --git a/2024/22/python/main.py b/2024/22/python.py
index c290858..98d8898 100644..100755
--- a/2024/22/python/main.py
+++ b/2024/22/python.py
@@ -1,3 +1,5 @@
+#!/usr/bin/env python3
+
 from collections import Counter, deque
 from fileinput import input
 from itertools import islice
diff --git a/2024/22/python/pyproject.toml b/2024/22/python/pyproject.toml
deleted file mode 100644
index 7bd23d0..0000000
--- a/2024/22/python/pyproject.toml
+++ /dev/null
@@ -1,6 +0,0 @@
-[project]
-name = "aoc-2024-22"
-version = "0.1.0"
-description = "advent of code 2024-22"
-requires-python = ">=3.13"
-dependencies = []