Completed day 7 of year 2025

Author: fschatbot

2025/7.py

@@ -0,0 +1,35 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+split_data = True
+completed = True
+raw_data = None # Not To be touched
+
+def part1(data):
+	beams = set([data[0].index('S')])
+	counter = 0
+	for line in data[1:]:
+		new_beams = set()
+		for beam in beams:
+			if line[beam] == '^':
+				new_beams.add(beam-1)
+				new_beams.add(beam+1)
+				counter += 1
+			else:
+				new_beams.add(beam)
+		beams = new_beams
+	return counter
+
+
+def part2(data):
+	beams = {data[0].index('S'): 1}
+	for line in data[1:]:
+		new_beams = {}
+		for beam in beams:
+			if line[beam] == '^':
+				new_beams[beam-1] = new_beams.get(beam-1, 0) + beams[beam]
+				new_beams[beam+1] = new_beams.get(beam+1, 0) + beams[beam]
+			else:
+				new_beams[beam] = new_beams.get(beam, 0) + beams[beam]
+		beams = new_beams
+	return sum(beams.values())