Completed day 4 of year 2025

Author: fschatbot

2025/4.py

@@ -0,0 +1,53 @@
+#!/usr/bin/env python
+# -*- coding: utf-8 -*-
+
+def parser(data):
+	row = []
+	for line in data.split('\n'):
+		row.append([c for c in line])
+	
+	return row
+
+split_data = parser
+completed = True
+raw_data = None # Not To be touched
+
+mov = [(i, j) for i in range(-1, 2) for j in range(-1, 2) if (i, j) != (0, 0)]
+
+def part1(data):
+	counter = 0
+	for y in range(len(data)):
+		for x in range(len(data[y])):
+			if data[y][x] != '@': continue
+			c = 0
+			for dx, dy in mov:
+				nx, ny = x + dx, y + dy
+				if 0 <= nx < len(data[y]) and 0 <= ny < len(data) and data[ny][nx] == '@':
+					c += 1
+				if c >= 4: break
+			else:
+				counter += 1
+	
+	return counter
+
+def part2(data):
+	counter = 0
+	
+	removed = True
+	while removed:
+		removed = False
+		for y in range(len(data)):
+			for x in range(len(data[y])):
+				if data[y][x] != '@': continue
+				c = 0
+				for dx, dy in mov:
+					nx, ny = x + dx, y + dy
+					if 0 <= nx < len(data[y]) and 0 <= ny < len(data) and data[ny][nx] == '@':
+						c += 1
+					if c >= 4: break
+				else:
+					data[y][x] = '.'
+					counter += 1
+					removed = True
+	
+	return counter