2022 Day 4 Python

2022/day4.py

@@ -0,0 +1,30 @@
+import re
+pattern = re.compile(r'(\d+)-(\d+),(\d+)-(\d+)')
+
+with open('input/4', 'r') as file:
+    lines = file.readlines()
+
+count = 0
+for group in lines:
+    x1, y1, x2, y2 = (int(x) for x in pattern.findall(group)[0])
+    if (x2 >= x1) and (y2 <= y1):  # Elf2 inside Elf1
+        count += 1
+        continue
+    if (x2 <= x1) and (y2 >= y1):  # Elf1 inside Elf2
+        count += 1
+        continue
+print(count)  # Part 1
+
+count = 0
+for group in lines:
+    x1, y1, x2, y2 = (int(x) for x in pattern.findall(group)[0])
+    if (x2 >= x1) and (y2 <= y1):  # Elf2 inside Elf1
+        count += 1
+        continue
+    if (x2 <= x1) and (y2 >= y1):  # Elf1 inside Elf2
+        count += 1
+        continue
+    if (x1 <= x2 <= y1) or (x1 <= y2 <= y1):  # Partial overlap
+        count += 1
+        continue
+print(count)  # Part 2