From 0a5c1f77d01fc0bd166494787f24562e2fd3a9e9 Mon Sep 17 00:00:00 2001
From: Botond Hende <nettingman@gmail.com>
Date: Wed, 11 Dec 2024 10:18:23 +0100
Subject: renamed day folders to two digit format

---
 2024/day02/solve.py | 31 +++++++++++++++++++++++++++++++
 1 file changed, 31 insertions(+)
 create mode 100644 2024/day02/solve.py

(limited to '2024/day02/solve.py')

diff --git a/2024/day02/solve.py b/2024/day02/solve.py
new file mode 100644
index 0000000..3ec9967
--- /dev/null
+++ b/2024/day02/solve.py
@@ -0,0 +1,31 @@
+safe = unsafe = 0
+
+
+def is_safe(report: str) -> bool:
+    last_num = 0
+    increase = True
+    for ii, num in enumerate((int(elem) for elem in report.split())):
+        if ii != 0:
+            if ii == 1:
+                increase = num > last_num
+
+            if (num > last_num) != increase:
+                return False
+
+            diff = abs(num - last_num)
+            if diff < 1 or diff > 3:
+                return False
+
+        last_num = num
+
+    return True
+
+
+with open("input") as f:
+    for report in f.readlines():
+        if is_safe(report):
+            safe += 1
+        else:
+            unsafe += 1
+
+print(f"safe: {safe}\nunsafe: {unsafe}")
-- 
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