Solve 2021 day 1

2021/01_sonar.py

@@ -0,0 +1,13 @@
+#!/usr/bin/env python3
+import sys
+
+def slide(depths, winsize):
+    return [sum(depths[i:i + winsize])
+            for i in range(len(depths) - winsize + 1)]
+
+def increased(depths):
+    return sum(depths[i] < depths[i + 1] for i in range(len(depths) - 1))
+
+depths = list(map(int, sys.stdin))
+print(increased(slide(depths, 1)))
+print(increased(slide(depths, 3)))

2021/input/1

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