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📜 WAYPOINT LESSON

Checkpoint — Arrays

⭐ beginner⏳ 20 min read📍 Lesson 29 of 85

A moving average and a palindrome probe: transform loops and in-place two-pointer work.

Checkpoint: signal tools

Task: implement two methods:

  1. static double[] MovingAverage(int[] readings, int window) — the average of each contiguous window-sized slice: results[i] is the mean of readings[i..i+window]. The result has readings.Length - window + 1 entries; when that count is ≤ 0 (window bigger than the input) return an empty array. window must be ≥ 1 or throw ArgumentException.
  2. static bool IsPalindrome(int[] values) — true when the array reads the same forwards and backwards (compare element i with element Length-1-i, no new array). Null is not a palindrome; empty is.