From 6e40549618390289d17ef81cf14861da5b282698 Mon Sep 17 00:00:00 2001
From: Stefan Harmuth <sharmuth@cocus.com>
Date: Mon, 30 Dec 2024 12:12:54 +0100
Subject: [PATCH] day15

---
 day15.py            | 42 ++++++++++++++++++++++++++++++++++++++++++
 inputs/input15      |  6 ++++++
 inputs/input15_test |  2 ++
 start_day.py        |  2 +-
 4 files changed, 51 insertions(+), 1 deletion(-)
 create mode 100644 day15.py
 create mode 100644 inputs/input15
 create mode 100644 inputs/input15_test
 mode change 100644 => 100755 start_day.py

diff --git a/day15.py b/day15.py
new file mode 100644
index 0000000..8df607a
--- /dev/null
+++ b/day15.py
@@ -0,0 +1,42 @@
+from tools.aoc import AOCDay
+from typing import Any
+
+def solve(disks: list[tuple[int, int, int]]) -> int:
+    time = 0
+    while not all((time + disk_id + cur_pos) % num_pos == 0 for disk_id, num_pos, cur_pos in disks):
+        time += 1
+
+    return time
+
+
+class Day(AOCDay):
+    inputs = [
+        [
+            (5, "input15_test"),
+            (376777, "input15"),
+        ],
+        [
+            (3903937, "input15"),
+        ]
+    ]
+
+    def parse_input(self) -> list[tuple[int, int, int]]:
+        disks = []
+        for disk in self.getIntsFromInput():
+            disks.append((disk[0], disk[1], disk[3]))
+
+        return disks
+
+    def part1(self) -> Any:
+        disks = self.parse_input()
+        return solve(disks)
+
+    def part2(self) -> Any:
+        disks = self.parse_input()
+        disks = disks + [(len(disks) + 1, 11, 0)]
+        return solve(disks)
+
+
+if __name__ == '__main__':
+    day = Day(2016, 15)
+    day.run(verbose=True)
diff --git a/inputs/input15 b/inputs/input15
new file mode 100644
index 0000000..1f25755
--- /dev/null
+++ b/inputs/input15
@@ -0,0 +1,6 @@
+Disc #1 has 13 positions; at time=0, it is at position 1.
+Disc #2 has 19 positions; at time=0, it is at position 10.
+Disc #3 has 3 positions; at time=0, it is at position 2.
+Disc #4 has 7 positions; at time=0, it is at position 1.
+Disc #5 has 5 positions; at time=0, it is at position 3.
+Disc #6 has 17 positions; at time=0, it is at position 5.
diff --git a/inputs/input15_test b/inputs/input15_test
new file mode 100644
index 0000000..b65eea1
--- /dev/null
+++ b/inputs/input15_test
@@ -0,0 +1,2 @@
+Disc #1 has 5 positions; at time=0, it is at position 4.
+Disc #2 has 2 positions; at time=0, it is at position 1.
\ No newline at end of file
diff --git a/start_day.py b/start_day.py
old mode 100644
new mode 100755
index 99f5505..1cc1de2
--- a/start_day.py
+++ b/start_day.py
@@ -11,7 +11,7 @@ import webbrowser
 
 YEAR = 2016
 CHARMS = {
-    'Linux': '/usr/local/bin/charm',
+    'Linux': '~/.local/share/JetBrains/Toolbox/scripts/pycharm',
     'Windows': r'C:\Users\pennywise\AppData\Local\JetBrains\Toolbox\scripts\pycharm.cmd'
 }