From 68615a9ad2c942254135cffb00cf25a84a3b1356 Mon Sep 17 00:00:00 2001
From: Prefetch
Date: Sat, 31 Dec 2022 22:21:39 +0100
Subject: Initial commit

---
 .gitignore   |    1 +
 01/input.txt |    1 +
 01/main.py   |   35 ++
 01/test.py   |   60 ++++
 02/input.txt | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 02/main.py   |   42 +++
 02/test.py   |   32 ++
 03/input.txt |    1 +
 03/main.py   |   48 +++
 03/test.py   |   40 +++
 04/main.py   |   33 ++
 04/test.py   |   21 ++
 05/input.txt | 1000 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 05/main.py   |   73 +++++
 05/test.py   |   32 ++
 06/input.txt |  300 ++++++++++++++++++
 06/main.py   |   53 ++++
 06/test.py   |   36 +++
 07/input.txt |  339 ++++++++++++++++++++
 07/main.py   |   61 ++++
 07/test.py   |   57 ++++
 08/input.txt |  300 ++++++++++++++++++
 08/main.py   |   64 ++++
 08/test.py   |   18 ++
 09/input.txt |   28 ++
 09/main.py   |   60 ++++
 09/test.py   |   22 ++
 10/main.py   |   41 +++
 10/test.py   |   28 ++
 11/main.py   |   71 +++++
 11/test.py   |   23 ++
 12/input.txt |    1 +
 12/main.py   |   41 +++
 12/test.py   |   65 ++++
 13/input.txt |   56 ++++
 13/main.py   |   72 +++++
 13/test.py   |   30 ++
 14/input.txt |    9 +
 14/main.py   |   75 +++++
 14/test.py   |   21 ++
 15/input.txt |    4 +
 15/main.py   |   78 +++++
 15/test.py   |   23 ++
 16/input.txt |  500 +++++++++++++++++++++++++++++
 16/main.py   |   66 ++++
 17/input.txt |   20 ++
 17/main.py   |   52 +++
 17/test.py   |   19 ++
 18/input.txt |  100 ++++++
 18/main.py   |   59 ++++
 18/test.py   |   25 ++
 19/input.txt |   45 +++
 19/main.py   |  128 ++++++++
 19/test.py   |   39 +++
 20/main.py   |   45 +++
 20/test.py   |   16 +
 21/input.txt |    3 +
 21/main.py   |  155 +++++++++
 21/test.py   |   27 ++
 22/input.txt |    2 +
 22/main.py   |  137 ++++++++
 22/test.py   |   39 +++
 23/input.txt |   47 +++
 23/main.py   |   65 ++++
 23/test.py   |   22 ++
 24/input.txt |   28 ++
 24/main.py   |   86 +++++
 24/test.py   |   18 ++
 25/input.txt |    1 +
 25/main.py   |   47 +++
 25/test.py   |   17 +
 71 files changed, 6203 insertions(+)
 create mode 100644 .gitignore
 create mode 100644 01/input.txt
 create mode 100755 01/main.py
 create mode 100755 01/test.py
 create mode 100644 02/input.txt
 create mode 100755 02/main.py
 create mode 100755 02/test.py
 create mode 100644 03/input.txt
 create mode 100755 03/main.py
 create mode 100755 03/test.py
 create mode 100755 04/main.py
 create mode 100755 04/test.py
 create mode 100644 05/input.txt
 create mode 100755 05/main.py
 create mode 100755 05/test.py
 create mode 100644 06/input.txt
 create mode 100755 06/main.py
 create mode 100755 06/test.py
 create mode 100644 07/input.txt
 create mode 100755 07/main.py
 create mode 100755 07/test.py
 create mode 100644 08/input.txt
 create mode 100755 08/main.py
 create mode 100755 08/test.py
 create mode 100644 09/input.txt
 create mode 100755 09/main.py
 create mode 100755 09/test.py
 create mode 100755 10/main.py
 create mode 100755 10/test.py
 create mode 100755 11/main.py
 create mode 100755 11/test.py
 create mode 100644 12/input.txt
 create mode 100755 12/main.py
 create mode 100755 12/test.py
 create mode 100644 13/input.txt
 create mode 100755 13/main.py
 create mode 100755 13/test.py
 create mode 100644 14/input.txt
 create mode 100755 14/main.py
 create mode 100755 14/test.py
 create mode 100644 15/input.txt
 create mode 100755 15/main.py
 create mode 100755 15/test.py
 create mode 100644 16/input.txt
 create mode 100755 16/main.py
 create mode 100644 17/input.txt
 create mode 100755 17/main.py
 create mode 100755 17/test.py
 create mode 100644 18/input.txt
 create mode 100755 18/main.py
 create mode 100755 18/test.py
 create mode 100644 19/input.txt
 create mode 100755 19/main.py
 create mode 100755 19/test.py
 create mode 100755 20/main.py
 create mode 100755 20/test.py
 create mode 100644 21/input.txt
 create mode 100755 21/main.py
 create mode 100755 21/test.py
 create mode 100644 22/input.txt
 create mode 100755 22/main.py
 create mode 100755 22/test.py
 create mode 100644 23/input.txt
 create mode 100755 23/main.py
 create mode 100755 23/test.py
 create mode 100644 24/input.txt
 create mode 100755 24/main.py
 create mode 100755 24/test.py
 create mode 100644 25/input.txt
 create mode 100755 25/main.py
 create mode 100755 25/test.py

diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000..c18dd8d
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1 @@
+__pycache__/
diff --git a/01/input.txt b/01/input.txt
new file mode 100644
index 0000000..becde71
--- /dev/null
+++ b/01/input.txt
@@ -0,0 +1 @@
+((((()(()(((((((()))(((()((((()())(())()(((()((((((()((()(()(((()(()((())))()((()()())))))))))()((((((())((()))(((((()(((((((((()()))((()(())()((())((()(()))((()))()))()(((((()(((()()))()())((()((((())()())()((((())()(()(()(((()(())(()(())(((((((())()()(((())(()(()(()(())))(()((((())((()))(((()(()()(((((()()(()(((()(((((())()))()((()(()))()((()((((())((((())(()(((())()()(()()()()()(())((((())((())(()()))()((((())))((((()())()((((())((()())((())(())(((((()((((()(((()((((())(()(((()()))()))((((((()((())()())))(((()(()))(()()(()(((()(()))((()()()())((()()()(((())())()())())())((()))(()(()))(((((()(()(())((()(())(())()((((()())()))((((())(())((())())((((()(((())(())((()()((((()((((((()(())()()(()(()()((((()))(())()())()))(())))(())))())()()(())(()))()((()(()(())()()))(()())))))(()))(()()))(())(((((()(()(()()((())()())))))((())())((())(()(())((()))(())(((()((((((((()()()(()))()()(((()))()((()()(())(())())()(()(())))(((((()(())(())(()))))())()))(()))()(()(((((((()((((())))())())())())()((((((((((((((()()((((((()()()())())()())())())(())(())))())((()())((()(()))))))()))))))))))))))))())((())((())()()))))))(((()((()(()()))((())(()()))()()())))(())))))))(()(((())))())()())))()()(())()))()(()))())((()()))))(()))))()))(()()(())))))))()(((()))))()(()))(())())))))()))((()))((()))())(())))))))))((((())()))()))()))())(())()()(())))())))(()())()))((()()(())))(())((((((()(())((()(((()(()()(())))()))))))()))()(()((()))()(()))(()(((())((((())())(())(()))))))))())))))))())())))))())))))()()(((())()(()))))))))())))))(())()()()))()))()))(()(())()()())())))))))())()(()(()))))()()()))))())(()))))()()))))()())))))(((())()()))(()))))))))))()()))))()()()))))(()())())()()())()(()))))()(()))(())))))))(((((())(())())()()))()()))(())))))()(()))))(())(()()))()())()))()))()))()))))())()()))())())))(()))(()))))))())()(((())()))))))))()))()())))())))())))()))))))))))()()))(()()))))))(())()(()))))())(()))))(()))))(()())))))())())()()))))())()))))))))(()))))()))))))()(()())))))))()))())))())))())))())))))))())(()()))))))(()())())))()())()))))))))))))))())))()(())))()))())()()(())(()()))(())))())()())(()(()(()))))())))))))))))())(()))()))()))))(())()())()())))))))))))()()))))))))))))())())))))(()())))))))))))())(())))()))))))))())())(()))()))(())))()))()()(())()))))))()((((())()))())())))))()))()))))((()())()))))())))(())))))))))))))))))()))))()()())()))()()))))())()))((()())))())))(()))(()())))))))()))()))))(())))))))(())))))())()()(()))())()))()()))))())()()))))())()))())))))))(()))))()())()))))))))(()))())))(()))()))))(())()))())())(())())())))))))((((())))))()))()))()())()(())))()))()))()())(()())()()(()())()))))())())))))(()))()))))())(()()(())))))(())()()((())())))))(())(())))))))())))))))))()(())))))))()())())())()(()))))))))(()))))))))())()()))()(()))))))()))))))())))))))(())))()()(())()())))))(((())))()((())()))())))(()()))())(())())))()(((()())))))()(()()())))()()(()()(()()))())()(()()()))())()()))()())(()))))())))))())))(())()()))))(()))))(())(()))(())))))()()))()))))())()))()()(())())))((()))())()))))))()()))))((()(()))))()()))))))())))))())(()((()())))))))))))()())())))()))(()))))))(()))(())()())))(()))))))))())()()()()))))(()())))))))((())))()))(()))(())(())()())()))))))))(())))())))(()))()()))(()()))(()))())))()(())))())((()((()(())))((())))()))))((((())())()())))(())))()))))))())(()()((())))())()(()())))))(()())()))())))))))((())())))))))(()(()))())()()(()()(((()(((()())))))()))))))()(())(()()((()()(())()()))())()())()))()())())())))))))(((())))))))()()))))))(((())()))(()()))(()()))))(()(()()((((())()())((()()))))(()(())))))()((()()()())()()((()((()()))(()))(((()()()))(((())))()(((())()))))))((()(())())))(()())(((((()(()))(()((()))(()())()))))(()(()))()(()))(())(((())(()()))))()()))(((()))))(()()()()))())))((()()()(())()))()))))()()))()))))))((((((()()()))))())((()()(((()))))(()(())(()()())())())))()(((()()))(())((())))(()))(()()()())((())())())(()))))()))()((()(())()(()()(())(()))(())()))(())(()))))(())(())())(()()(()((()()((())))((()))()((())))(((()()()()((((()))(()()))()()()(((())((())())(()()(()()()))()((())(())()))())(((()()(())))()((()()())()())(()(())())(((())(())())((())(())()(((()()))(())))((())(()())())(())((()()()((((((())))((()(((((())()))()))(())(()()))()))(())()()))(())((()()())()()(()))())()((())))()((()()())((((()())((())())())((()((()))()))((())((()()(()((()()(((())(()()))))((()((())()(((())(()((())())((())(()((((((())())()(()())()(())(((())((((((()(())(()((()()()((()()(()()()())))()()(((((()()))()((((((()))()(()(()(()(((()())((()))())()((()))(())))()))()()))())()()))())((((())(()(()))(((((((())(((()(((((()(((()()((((())(((())())))(()()()(()(()))()))((((((()))((()(((()(())((()((((()((((((())(((((())))(((()(()))))(((()(((())()((())(()((()))(((()()(((())((((()(()(((((()))(((()(((((((()(()()()(()(()(()()())(())(((((()(())())()())(()(()(()))()(()()()())(()()(()((()))()((())())()(()))((())(()))()(()))()(((()(()(()((((((()()()()())()(((((()()(((()()()((()(((((()))((((((((()()()(((((()))))))(()()()(())(()))(()()))))((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diff --git a/01/main.py b/01/main.py
new file mode 100755
index 0000000..cd3ec34
--- /dev/null
+++ b/01/main.py
@@ -0,0 +1,35 @@
+#!/usr/bin/python
+
+
+
+def solve_partn(partn, data):
+    floor = 0
+    for i, d in enumerate(data):
+        if d == "(":
+            floor += 1
+        elif d == ")":
+            floor -= 1
+
+            if partn == 2:
+                if floor < 0:
+                    return i + 1
+
+    if partn == 1:
+        return floor
+    else: # partn == 2
+        return -1 # only reached if he never goes underground
+
+
+
+def main():
+    # Read instructions from input text file
+    with open("input.txt", "r") as f:
+        data = f.read()
+
+    print("Part 1 solution:", solve_partn(1, data)) #   74 for me
+    print("Part 2 solution:", solve_partn(2, data)) # 1795 for me
+
+
+
+if __name__ == "__main__":
+    main()
diff --git a/01/test.py b/01/test.py
new file mode 100755
index 0000000..98cbd7d
--- /dev/null
+++ b/01/test.py
@@ -0,0 +1,60 @@
+#!/usr/bin/python
+
+import unittest
+
+import main
+
+
+
+class ExamplesPart1(unittest.TestCase):
+    def test_example1(self):
+        data = "(())"
+        self.assertEqual(main.solve_partn(1, data), 0)
+
+    def test_example2(self):
+        data = "()()"
+        self.assertEqual(main.solve_partn(1, data), 0)
+
+    def test_example3(self):
+        data = "((("
+        self.assertEqual(main.solve_partn(1, data), 3)
+
+    def test_example4(self):
+        data = "(()(()("
+        self.assertEqual(main.solve_partn(1, data), 3)
+
+    def test_example5(self):
+        data = "))((((("
+        self.assertEqual(main.solve_partn(1, data), 3)
+
+    def test_example6(self):
+        data = "())"
+        self.assertEqual(main.solve_partn(1, data), -1)
+
+    def test_example7(self):
+        data = "))("
+        self.assertEqual(main.solve_partn(1, data), -1)
+
+    def test_example8(self):
+        data = ")))"
+        self.assertEqual(main.solve_partn(1, data), -3)
+
+    def test_example9(self):
+        data = ")())())"
+        self.assertEqual(main.solve_partn(1, data), -3)
+
+
+
+class ExamplesPart2(unittest.TestCase):
+    def test_example1(self):
+        data = ")"
+        self.assertEqual(main.solve_partn(2, data), 1)
+
+    def test_example2(self):
+        data = "()())"
+        self.assertEqual(main.solve_partn(2, data), 5)
+
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/02/input.txt b/02/input.txt
new file mode 100644
index 0000000..5f3335f
--- /dev/null
+++ b/02/input.txt
@@ -0,0 +1,1000 @@
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diff --git a/02/main.py b/02/main.py
new file mode 100755
index 0000000..0a1697d
--- /dev/null
+++ b/02/main.py
@@ -0,0 +1,42 @@
+#!/usr/bin/python
+
+
+
+def solve_part1(boxes):
+    result = 0
+    for b in boxes:
+        faces = [b[0]* b[1], b[1] * b[2], b[2] * b[0]]
+        result += 2 * sum(faces) + min(faces)
+    return result
+
+
+
+def solve_part2(boxes):
+    result = 0
+    for b in boxes:
+        perims = [2 * (b[0] + b[1]), 2 * (b[1] + b[2]), 2 * (b[2] + b[0])]
+        volume = b[0] * b[1] * b[2]
+        result += min(perims) + volume
+    return result
+
+
+
+def main():
+    # Read box dimensions from input text file
+    with open("input.txt", "r") as f:
+        lines = f.read().splitlines()
+
+    # Parse the dimensions into tuples (x, y, z)
+    boxes = []
+    for line in lines:
+        dims = line.split("x")
+        b = tuple([int(d) for d in dims])
+        boxes.append(b)
+
+    print("Part 1 solution:", solve_part1(boxes)) # 1586300 for me
+    print("Part 2 solution:", solve_part2(boxes)) # 3737498 for me
+
+
+
+if __name__ == "__main__":
+    main()
diff --git a/02/test.py b/02/test.py
new file mode 100755
index 0000000..965adef
--- /dev/null
+++ b/02/test.py
@@ -0,0 +1,32 @@
+#!/usr/bin/python
+
+import unittest
+
+import main
+
+
+
+class ExamplesPart1(unittest.TestCase):
+    def test_example1(self):
+        boxes = [(2, 3, 4)]
+        self.assertEqual(main.solve_part1(boxes), 58)
+
+    def test_example2(self):
+        boxes = [(1, 1, 10)]
+        self.assertEqual(main.solve_part1(boxes), 43)
+
+
+
+class ExamplesPart2(unittest.TestCase):
+    def test_example1(self):
+        boxes = [(2, 3, 4)]
+        self.assertEqual(main.solve_part2(boxes), 34)
+
+    def test_example2(self):
+        boxes = [(1, 1, 10)]
+        self.assertEqual(main.solve_part2(boxes), 14)
+
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/03/input.txt b/03/input.txt
new file mode 100644
index 0000000..1757219
--- /dev/null
+++ b/03/input.txt
@@ -0,0 +1 @@
+>^^v^<>v<<<v<v^>>v^^^<v<>^^><^<<^vv>>>^<<^>><vv<<v^<^^><>>><>v<><>^^<^^^<><>>vv>vv>v<<^>v<>^>v<v^<>v>><>^v<<<<v^vv^><v>v^>>>vv>v^^^<^^<>>v<^^v<>^<vv^^<^><<>^>><^<>>><><vv><>v<<<><><>v><<>^^^^v>>^>^<v<<vv^^<v<^<^>^^v^^^^^v<><^v><<><^v^>v<<>^<>^^v^<>v<v^>v>^^<vv^v><^<>^v<><^><v^><><><<<<>^vv^>^vvvvv><><^<vv^v^v>v<<^<^^v^<>^<vv><v<v^v<<v<<^^>>^^^v^>v<><^vv<<^<>v<v><><v^^><v<>^^>^^>v^>^<<<<v><v<<>v><^v>^>><v^^<^>v<vvvv<>>>>>^v^^>v<v<^<vv>^>^vv^>vv^^v<<^<^^<>v>vv^v>><>>>v^>^>^^v<>^<v<<>^vv>v^<<v>v<<><v>^vvv<v<vvv^v<vv<v^^^>v><<^<>><v^^>^v^>>^v<^<><v<>>v^<>>v<>>v^^^><^>>vvvv>^v<^><<>>^<>^>vv><v<<>>^^>v^^^><^<<^^v>v<^<<>v>^^vvv^v^>v^<>^^<>v^v>v>v<v^>vv>^^v<>v>>^<>><>v>v^<<vvvv<vvv><v^<^>^v<>>^><v>><>^<v>v<v>vv^>>vvv<>v>v<v^>>^>>v<<>^<>^<>>>^v<<<^<^v>vv^>><<><v^>^v^^^v<>^^vv><>><>>^>v^<v<>v<>>^<<^v>^^^<>^v^><>v<<v>vv^>vv<<>>><<^v^<>v<vv>>>^^<>^><<^>vv>>^<<v^^vv<>>><v>v><^<v<<>>>^^<>>^<^v><>vv^^^v>vvv>^><<>^^>^<<v^<v<^v<<>vvv<^<<>^>^v<vv<^>vvv>v>vv^<v^><>>^vv<^^^vv><^vv<v^<><v^vvv><<^>^^><v<<vv^>v<vv<v>^<>^v<<>v<v^v^>^>^>v<<^vvv<<<v>^^>^<<<<>vv>>^<>^>>>v<v>^^<v^<v<>>>vv>^^v<<>>>^^v><<<v<v<^v<>^^><v<^v<<v^><><^<><v<^^v>>><v^^v<<v^><^<><<v^>><^<>v>v^<><^<v>^v^>^>^vv^>^^<<vv^>vv<^vvv<>>^^<^>v^>^>^<v^><v<v>>>v<<<><^v<<><^<vv^v^^^>v<^^<v^vvv<v<><v<vv<^vv<>vv<v^<>>vvvvv<<>^v^v>vv>>>vvv^^<^<^<><>v<v>><^v><^<<<>><<<v>^>v<>^>^v>>^<>v^<^>><<>^<v>^>^^^>^^<v>>>><>^v^v><<<<vv^<vv<>vv>v<>v^<v^>v><>>>v^<><^vvv>vv^<^<<^<^^v>^>>>v<^<^v^^<^<^>>><v>vv>^<<><>^>>v>^<<>><^<>v<>vv^^>^>vvv^v<<^<^^<vv<>^vvv<^^v^vv^>>v<^>^^<v^<>v<^<^vv>v<<vv>vv>^>vvv>>>^^>v<>^v>v^<^>>v>^^v>>>>v^<v>v<^>v<v<<>>^v<^^<v><^<>>^<<vv^>>v<<v>^v<>><^>vv<v<^>>^^<vvvvvvvvv>>>v<v<>v^<>>^vv<v^^v<<^vvv^<<^><>vv<><<>>v>vv^><>>^^v^>>v^v^><<<>>^^<^v<<^<>>>>^<^>v^><<^>v<^v<^>>^^<<<<><^<^v^v<>>^v<^<<vv^<><^^vv><v^v^v>^>>^>^vv^>^v<v^v<<vvv^><>>^v^^><>v>vv><^>>vv<vvv<<<<^<>vvv^v<v>^<v<^>^<^<v<><>v^^^^<<vv<^^vv<v>><<v^><>>><v^>^v><^>^><vv^<><^<v>><<^vv<>>v^<<v<>v><v<><><vv>^>>v^<^<v>^><>>><^><v^v<>>>^^<^>v<v>vvv<>^<<><v^^>^>>v<^v>^>v>>>vv>v>>v^^^<^<vvv^<>^>^<v^<v^v>v>^>vv>vvv<>v<^>v>^^>>^<vv^^v>v^^^^^v^vv><^<><>^>vv<^>>^vvvv^^^>^<vv>^v<<^><^^>^<>^^>^<<v<^>>>^><<^^>v^v>>^>vvvv>^^v><v>>vv><<<vv<^>v>^^^<v>v^vvv<^><<^>^<>^><<<<<v^<<vv^v>^<>v<v>^>^>><>v^v<^vv^^>vv<<v^v>vv^vvv<<<<>^v<v^^v^v>v<<v>^^<>^vv^^>^>^v^vv^>>v^vv^^<vv><<v^v^^v><vv<^vvv<vv^^<<v>v^v^^^^v<^<^>v>^>v>^vv^v^^<v<^vvvv<<<>^<^^^<^^<>^<><vv<^^<<^>>><v^vvvv>^<>>^^>v^^v^<<v^^^<<<><^<v^v^^v<v^<>v><<v<>^v>v<^><^>vv^^<vvv<^v>>v>^<><v^><^^^<v^>>vv<<<<<^<>^v^v>^vv^<>v>v<^>vv<<^vv>vv<v<><>>v>><v<^<^^>><<v^v<<^><v<^<vv<v<<vv^>^<<><^^>^<^>>^<vv>><v<<vvv<^^v^>^^<^v>^v<v<>v><v^v^<<^<><<v<<^v>v<<>>^>v>>v>>v<^<<^<^>>>v>^^^v><^>^^>>v<<>^v><v>vvv^vv<<<>vvv<<>^>>>v<v<v^<^<^>^<^>v^^v<^^<v<>v<>>^^>^v^>v<<<<^<>v^><<<v>>>><<v^<^vv>v>><>>^<<<^<^^>v<>>v<>vv<<^<<><<^>v^^^vv^>vvvv>>v>v^><<v<>vv^<<><<vvv>^>>>^<<<^<^<<v>^>v<>>v>>vv^^><<<<^^^v>><<^><v><v^^><v<<v^^v^^v>>v<><><<>^><v><^<vv>><^v<>v<vvv<>^>><v>>v<^><<v>^<>^v><^><^^<v>^><^^v^<<><>>^>v^<^v^vv<><^>vv^>v^vvv^<>>^><^<^<>^<<v^v<^v><>^v<v>>^>>^v^vv>><vv><v^^<<^v^<>^v<<>^><^>><v>>v<<<v^^vv<>^^v>>><><><<v^<<<v^<^^><v^>v^^vv<v^<>>vv^<^v<>^v>>v^v>v<^^vv><>^v<<>v^<>v^>>v>vvv<^><><^^>^vv^>>v^>^<^^<><>><<>^^^><^v^v><<<><<^v^vv>v>><^>>><v^>v<v><><v^v<>v^^>>v<<>v>v<v<v<^^<><>v^^<>>v<^v<v>v<><v<v>^<<>v>vv^^<>>^^^<>^^>^v>v>>>^v^v><v^^<><v>^^v^v<^<^^><<v<^<^<>^<>><<>^>>^>^^><v><>v<><>><<<>>>>vv>>>^>>^v<^>v^^^v<<vv>><<<^<<<>>>>>^>vv<^v^<>^<v^>^v><v>vvv<>>>^v^^^v<<<<>>^^<vv<^<^^>^<>v<^<<<>><>>v<^<>^<vvv<^<>><><<v>^^^>^^<<v<v^>^^v^>><<^vv><v>^v>>^<v>v>^^>^v>^vvv<>v^v^^<><vv>vv^>>><>v<^><v<v^<><<<>^v>^v<<<^>^>^>v^v<<><vvv<<v^^<><v>^>>><vv>><v>>v^<vv>>vv<<^v^v<<><^v<vv>>>vv<>>>>^vv>v^<>vv>v^v<v^><v<^^^^^>vv<><<vvv^<v><^<vv><^^^vv^<>^^^^<^><^<>v^<v^v<<^v<<^^<>>^<v^^>>>vv<vvv<>v<<>><^vvv^<<^^<<>>>^<>>>v^^><>><<>><v^v>>>>>><>>><v^<<vvv^>v<>>v^<>vv<><^^^^v^<<^<v^vv><<^^>v<^vvv^v>>v>^>>v>^^><<v^<>v<>vv<^v^vv><v><<vv^v>>v^>>v<^^^>^><<v<>^><>v>>>vvv<v<vv<^>>^v<v>^<^^^^^v><>v><>v^v^v<v^vv^v>vvvv<>vv<<<vv<v<<>^<^>^^v^<<>^<v><^><v<v<><<>v^<<^<><vv>v<<^v>>^v<><v>^>>^^><>v^<^<vvv^>^>^<<<<>vv>^v^v<^^^<vv>><>^^<<v<^<^^>>>v^v<<^^^<v<v<^<>^v<v><v^vv^^v^^v^^<vv<>^<><vv^<^v^<<^><<vvv>^^<^^^<^v>^>^vv><<<^v<v>vv>v<>v^v<v^>v^>>>v^v<>^v<<>^vv>v>v>v^<^>v^^<^>^^^^vv>^^><^>vv^>>^^v>><<<<^><>v<>^<v<vv^>^^><<^><v>v^>^^<^>>><>><v^v<v^<v<vv^v^<<^<vvv>>><vv<^^>>^>^><<v^<>>v>v^v^^><<>vv^v>v^<v><^<>^^<^>v>^<><<<v>^<^<^>^>^>^^v^<<^^v^^<^<>><^>v>>^^<>^^^<<<<v^>^v<^vv>^<<<v<><<v<>vv>>>v><>>><>>v<<<vv><>^v>v<^>><^><><v<>^v^>^v>^v<<><<^<>>v>^><>^>><>><^<v^><v^^<><v><^^>^v^^<>v^<v^<^v<v^^^^^v^<<^>^^^<^v><>^^<<<><<<<<^^>v^vvvv>v<>>vv<^>^v^>v<^vv^v<<><<v>v^v>^^><><^<v^>v><vv><>>><<>^vv<>v>>v<^v>>>v<v>v>v>^vv<<>^^vv<v<^v^<v<v>vv<>^<^<vv<v^<^v^^><<>^>><^v>vv^^v<<^^><<>v^^<><><v^^<v^v>^>^>^>v<^<v>^v^^>v<>vvv<^v<v^v><<v^><<^^><^<<v^v^>v<>^>v><><v>^<v<v>^<^^^>^v<<><<><>vv>v^<>v^><v^v<v><><<v>v<vv><<v>>v>^<<<>vv>>vvv>^^vv^v^^<^^<>v^^<>v>>^^>^>^>v>><^>><>>^<<>><^>v<<<<<<<^v^v<v^<v^^>^<><<v<^>v^>v^vv<<^^vv^>>>>^<>v<^v<>v<vv<^>>v^vv>vv><vv<<^>v>><vv>>>vv^<<<<vv^>v<<<<^^>^^v^><<^<v^>v^>^^<v<>vvv^>^<>vvv<v<^^>v^<<v>><>v<v<>^^<vvv>^>vv><><<<^^vv<v^<v<>v<>><<v><^vv^>^<^>^^^<<<v>vv^<^<<>^>^<vv>v><v<<^><^>^^<vv^v^^>>>>vv^><^^vv><>^<v^v>v<vv>v><<<v>v<v>^><v^^><v>v<^v^>>^^<v^>^^>vv>>vv^><^vv^vv<<^>vv>^v<v><vv><v<vvvvv>^^v^v><v>>>^vv<>v>^^^^<^>><>^v^^^>v<^^<<^^v<vv<>vvv<^>><><^>>^><^<>v<v<<><<v><v^v<>><^>v><<v^<v>v<^<vv^v^v^>vvv^^>v>^<vv^>v^v^<>v>^>>vv>><^^<v<<>^vv<><><<^v<v>v<<vv><>><^v<v>>v^>vvv^v^<<^><v<>^vv^>v^<v<^>>v<v><v><v>>^<<<v^<><<>v>^>^^<v<>>^<>^>^><<<^<<^<<^>^v>>><vvv>><<<<v>>>>>>>^<^v<^>v<>vv<><>v>>^>>^>vv^^><<^<v<v>>^^<<^>v<^>>vv>^<>v><^>v<vv>>>>>>^v<^<<<v^><vv<<>>vv<<><v<><<<v<^<v<>>v<^^^^v^^<^^^<^<vv><<^>><>v<<>v<v<>>>><>v^vv>^>^>>vv^v<v<<><^v>vv^><v<<>v^v<^>vv<<^^v><^>>^^vv<^<>>v^^>><v>^v>>>^>>v>v<>v<^vv><>^<<^>vv>>><><>v^><>v^>v>v><^v<><v<v>^v<<^vv^><^^>><^^^<<<^>v>^v>>><^>><^>>>^^^<^>vv<><<<v^>^<^^>>^^^v^v^v>v<v>>>><^>>>v>^vv<<^^^<^^vv>v<<><v<<^^>v>><<v^^><^>^<^>^v^>v><^<^vv>v>><>^<<vv<<v>v<vv<v>^>^>><^^<v>^v^v<><<>vvv<^<v>^><>^>vvv>>>^><<>><v^^<^<<^v>>^v<v<vv>vv^v^>v<<vvv<^^v^v>^<^>>^>v<^>^v<<><<<^>^<^^^>vv<^^^^vv<v<^^v<<<<v<^v^<><v<<^><<>vv>>><^<^<>>>^>^>>^<<<<<^^v>^>^<>vvv^^<^><^>^^v>^vv^><v^<^<<v^<vvv<<^v<><^><^>>>v>^v>^>^v<vv^v>><v><^><v^^>v^>^<><<><>v<v^>vvv^>^>>v<>^><^>^><vvv>^^v^v>v<>^v^><^>>v>v^><<<^>>^<>^<>>v><>>v^>^>^^<>>v^>^<vvvv<^vvvv^>>vv^<v^v>^vv<>v<>^<v<v>v>^^><^>vv^<^v^<<^<^<><vv<^v<^v><>>>^v^<<^><^>vv<v>v<^>vv^>v<<<>^<><v<^^^>v><^^<>^<^<v^vv^<<^>><<v^v<^vvv<<<>>vvvv^v^^^>v<>>><<>vvv<<^^^>v>v>>v<<v<v^v^>^^v>^><^<><<v^<v<v^^^><>v^^^<v>vv<>^>^^vv>^<<^v<^v><v>>>^>>><^<<>^v>>^>vv<<<v<>^<v><v^<^<>v>v^^v^>><<^v<<<<>v>v>v^^<^><>^^<<<v>vv<>>>^>>v<><v^>^<><vv>v>v^v<v^<^>>^>><<^^<^^v<vv<>><<<v<^<<^^^>vvv^<vvv<^>vv><>><<<^<v^v^^<<^vvv^^<^<><<>^<^<>>vvv<>^<>v^v<><>>v^v><<>>>vvv>v<>^>>^><^>vv<<>>v<<^><>v>>^^<v>^>^<<>><^<<vv<^<vv^vv><>>>><^<v>^>vv<v><>^<>vvvvv^vv<<v<>>>^<<><>^^vvv>>>vv<<^^><^v^^v<>^^>^><^>v^^^^v<^<<vv<vv<>vv^^>v^vv>v><>>vv>^<^<v^v^>>v^v^^v>^>vv^>v<vvvv<^v<^v>^v>^^v<<^>^^<<>^><^v>>>vv^>^^>vvvv>>v<^<v>^>>>v^<><^<^^<v>vv^^><v>v^<>^^^>>><^^v>v>^<<>^<v^>vvv^>^^^><v<^>>v<v>>^v><<><<>v<^<<>^><>^>vv>^<v>^^v<<^v^vvv^^>^vv^<^>^>^^v>v^>^<<><<^>v>>vv^vv><v>>^<<^<v^^<^<v^^vv^><^^<^^><v^^>v^^^<^<>^<>>^v<^vvv^^v^<><^>>>>>v><><<<>vv<^v>><<>vvv<><<vv<<<^>v^^>>^>^v>><><^^v<>><>>v^>^<vv><<<>><><<v>^^<>>v<><^<vv>vv<^v>^<<<<v<^<<^^>>^<><^>><<>^>v>^^^v>>^<^^v><v^v>^><<><>>^>>^<<v<>^v<>^>^<v>>vv>^vvv<<v<<^>^>^<<^^<>^^^^vvv<>^vv<vvvvv^^>^^<^>>><>v^<><^<<^>v^^v<>>^vv<>v^^<>>v^vvvvv<<v^<v^^>>><vvvvv>><^>vv>v^v^<v<^>^^><^>^^^^v<><^v<<>v^>v>>vv<<>^<v^^>vvv>^^<v^<>vv^><>><v^^v<>^>>^>v><>>^^v>^>^>>>^>v<^v>v>^<^^^^^>>v<v<>>v<<^>^<v<<>^^>><<^><>v<>^^^vv<>^^>><<^^>v>vv>vv>v^>^v>v^^<>>><<v><v<<>>v><>vvv^^v>^^>^vvvv^>^<>^vvvv><v><v<>>><>^<^vv<>^v<^v<>^vvv<<>><vvv^>>^><<vv^<v^>^<v<<^^>^^<^^v^>v<>v^v><>><v^^>>^vvv><^vv>v^<^<^v>>v^^>^vvv^<v^^v^^>v<^<>>^<>>>^^<><^^vv<>^vv^<>>>>^^<<^^<>vv^^><>^^<v<<v>^<v^^>^v<><><>vvv>^v^>>vv<<^v<<>><v>^><^>>>^<^<^^>vv^<<^<>>^^><><<v>^^<v>>v<<vvvv>^v^vv>><^^<<^>>v>v<^^^<^><^^vv>^vv<^<vv<>v><^<><v><^^^>>^<><^<v>>>>v^<v>>>>>v<><^^>v<^<^>><v<>^>vv>^^v^v^<<v<><<<^v^><<^<><<<<v<^>><<<>v>>vv><vv<><<^<^<><vv>^^^^<>v<<<<v>vv<>vv^^^>><>vv^><>>^vv<<><^^vv<>v^>>^<<>^<v^<^>v<
diff --git a/03/main.py b/03/main.py
new file mode 100755
index 0000000..35c2308
--- /dev/null
+++ b/03/main.py
@@ -0,0 +1,48 @@
+#!/usr/bin/python
+
+
+
+def get_path(data):
+    visited = []
+    loc = (0, 0)
+    visited.append(loc)
+
+    for d in data:
+        if d == "^":
+            loc = (loc[0], loc[1] + 1)
+        elif d == "v":
+            loc = (loc[0], loc[1] - 1)
+        elif d == "<":
+            loc = (loc[0] - 1, loc[1])
+        elif d == ">":
+            loc = (loc[0] + 1, loc[1])
+        visited.append(loc)
+
+    return visited
+
+
+
+def solve_part1(data):
+    return len([*set(get_path(data))])
+
+
+
+def solve_part2(data):
+    data1 = data[0::2]
+    data2 = data[1::2]
+    return len([*set(get_path(data1) + get_path(data2))])
+
+
+
+def main():
+    # Read delivery instructions from input text file
+    with open("input.txt", "r") as f:
+        data = f.read()
+
+    print("Part 1 solution:", solve_part1(data)) # 2592 for me
+    print("Part 2 solution:", solve_part2(data)) # 2360 for me
+
+
+
+if __name__ == "__main__":
+    main()
diff --git a/03/test.py b/03/test.py
new file mode 100755
index 0000000..693584b
--- /dev/null
+++ b/03/test.py
@@ -0,0 +1,40 @@
+#!/usr/bin/python
+
+import unittest
+
+import main
+
+
+
+class ExamplesPart1(unittest.TestCase):
+    def test_example1(self):
+        data = ">"
+        self.assertEqual(main.solve_part1(data), 2)
+
+    def test_example2(self):
+        data = "^>v<"
+        self.assertEqual(main.solve_part1(data), 4)
+
+    def test_example3(self):
+        data = "^v^v^v^v^v"
+        self.assertEqual(main.solve_part1(data), 2)
+
+
+
+class ExamplesPart2(unittest.TestCase):
+    def test_example1(self):
+        data = "^v"
+        self.assertEqual(main.solve_part2(data), 3)
+
+    def test_example2(self):
+        data = "^>v<"
+        self.assertEqual(main.solve_part2(data), 3)
+
+    def test_example3(self):
+        data = "^v^v^v^v^v"
+        self.assertEqual(main.solve_part2(data), 11)
+
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/04/main.py b/04/main.py
new file mode 100755
index 0000000..1014062
--- /dev/null
+++ b/04/main.py
@@ -0,0 +1,33 @@
+#!/usr/bin/python
+
+from hashlib import md5
+
+
+
+def solve_partn(partn, key):
+    if partn == 1:
+        prefix = "00000"
+    else: # partn == 2
+        prefix = "000000"
+
+    n = 0
+    h = "undefined"
+    while not h.startswith(prefix):
+        n += 1
+        d = key + str(n)
+        h = md5(d.encode()).hexdigest()
+    return n
+
+
+
+def main():
+    # My personal input string
+    key = "ckczppom"
+
+    print("Part 1 solution:", solve_partn(1, key)) #  117946 for me
+    print("Part 2 solution:", solve_partn(2, key)) # 3938038 for me
+
+
+
+if __name__ == "__main__":
+    main()
diff --git a/04/test.py b/04/test.py
new file mode 100755
index 0000000..4078e83
--- /dev/null
+++ b/04/test.py
@@ -0,0 +1,21 @@
+#!/usr/bin/python
+
+import unittest
+
+import main
+
+
+
+class ExamplesPart1(unittest.TestCase):
+    def test_example1(self):
+        key = "abcdef"
+        self.assertEqual(main.solve_partn(1, key),  609043)
+
+    def test_example2(self):
+        key = "pqrstuv"
+        self.assertEqual(main.solve_partn(1, key), 1048970)
+
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/05/input.txt b/05/input.txt
new file mode 100644
index 0000000..5642100
--- /dev/null
+++ b/05/input.txt
@@ -0,0 +1,1000 @@
+rthkunfaakmwmush
+qxlnvjguikqcyfzt
+sleaoasjspnjctqt
+lactpmehuhmzwfjl
+bvggvrdgjcspkkyj
+nwaceixfiasuzyoz
+hsapdhrxlqoiumqw
+lsitcmhlehasgejo
+hksifrqlsiqkzyex
+dfwuxtexmnvjyxqc
+iawwfwylyrcbxwak
+mamtkmvvaeeifnve
+qiqtuihvsaeebjkd
+skerkykytazvbupg
+kgnxaylpgbdzedoo
+plzkdktirhmumcuf
+pexcckdvsrahvbop
+jpocepxixeqjpigq
+vnsvxizubavwrhtc
+lqveclebkwnajppk
+ikbzllevuwxscogb
+xvfmkozbxzfuezjt
+ukeazxczeejwoxli
+tvtnlwcmhuezwney
+hoamfvwwcarfuqro
+wkvnmvqllphnsbnf
+kiggbamoppmfhmlf
+ughbudqakuskbiik
+avccmveveqwhnjdx
+llhqxueawluwmygt
+mgkgxnkunzbvakiz
+fwjbwmfxhkzmwtsq
+kzmtudrtznhutukg
+gtvnosbfetqiftmf
+aoifrnnzufvhcwuy
+cldmefgeuwlbxpof
+xdqfinwotmffynqz
+pajfvqhtlbhmyxai
+jkacnevnrxpgxqal
+esxqayxzvortsqgz
+glfoarwvkzgybqlz
+xdjcnevwhdfsnmma
+jyjktscromovdchb
+pvguwmhdvfxvapmz
+iheglsjvxmkzgdbu
+lwjioxdbyhqnwekv
+zcoguugygkwizryj
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diff --git a/05/main.py b/05/main.py
new file mode 100755
index 0000000..876d20c
--- /dev/null
+++ b/05/main.py
@@ -0,0 +1,73 @@
+#!/usr/bin/python
+
+
+
+def solve_part1(lines):
+    result = 0
+
+    for line in lines:
+        # Rule 1: at least three vowels
+        nvowels = 0
+        for v in "aeiou":
+            nvowels += line.count(v)
+        rule1 = nvowels >= 3
+
+        # Rule 2: at least one double letter
+        rule2 = False
+        for i in range(len(line) - 1):
+            if line[i] == line[i + 1]:
+                rule2 = True
+                break
+
+        # Rule 3: no "ab", "cd", "pq" or "xy"
+        rule3 = True
+        for s in ["ab", "cd", "pq", "xy"]:
+            if line.count(s) > 0:
+                rule3 = False
+                break
+
+        if rule1 and rule2 and rule3:
+            result += 1
+
+    return result
+
+
+
+def solve_part2(lines):
+    result = 0
+
+    for line in lines:
+        # Rule 1: twice-occurring two-letter sequence
+        rule1 = False
+        for i in range(len(line) - 1):
+            s = line[i : i + 2]
+            if line.count(s) >= 2:
+                rule1 = True
+                break
+
+        # Rule 2: ABA-like sequence
+        rule2 = False
+        for i, c in enumerate(line):
+            if i < len(line) - 2 and line[i + 2] == c:
+                rule2 = True
+                break
+
+        if rule1 and rule2:
+            result += 1
+
+    return result
+
+
+
+def main():
+    # Read list of strings from input text file
+    with open("input.txt", "r") as f:
+        lines = f.read().splitlines()
+
+    print("Part 1 solution:", solve_part1(lines)) # 258 for me
+    print("Part 2 solution:", solve_part2(lines)) #  53 for me
+
+
+
+if __name__ == "__main__":
+    main()
diff --git a/05/test.py b/05/test.py
new file mode 100755
index 0000000..66fc927
--- /dev/null
+++ b/05/test.py
@@ -0,0 +1,32 @@
+#!/usr/bin/python
+
+import unittest
+
+import main
+
+
+
+class ExamplesPart1(unittest.TestCase):
+    def test_example1(self):
+        lines = ["ugknbfddgicrmopn", "aaa"]
+        self.assertEqual(main.solve_part1(lines), 2)
+
+    def test_example2(self):
+        lines = ["jchzalrnumimnmhp", "haegwjzuvuyypxyu", "dvszwmarrgswjxmb"]
+        self.assertEqual(main.solve_part1(lines), 0)
+
+
+
+class ExamplesPart2(unittest.TestCase):
+    def test_example1(self):
+        lines = ["qjhvhtzxzqqjkmpb", "xxyxx"]
+        self.assertEqual(main.solve_part2(lines), 2)
+
+    def test_example2(self):
+        lines = ["uurcxstgmygtbstg", "ieodomkazucvgmuy"]
+        self.assertEqual(main.solve_part2(lines), 0)
+
+
+
+if __name__ == "__main__":
+    unittest.main()
diff --git a/06/input.txt b/06/input.txt
new file mode 100644
index 0000000..495311e
--- /dev/null
+++ b/06/input.txt
@@ -0,0 +1,300 @@
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