math typesetting

Reverse Thinking With Fixed-Length Sliding Window

We previously learned about the fixed-length sliding window technique, which typically involves sliding one element at a time. For a detailed explanation, refer to the article —— 📝How to Solve Fixed-Length Sliding Window Problems. Now, we encounter a new problem that also appears solvable with a sliding window, but with a slight twist🔗. A Tricky Problem There are several cards arranged in a row, and each card has an associated number of points. The points are given in the integer array cardPoints. ...

January 1, 2026 · 6 min · 1227 words · Robin Yang