A list of special data structures
November 28, 2025We provide a list of data structures that serve specific purposes when solving LeetCode problems.
We provide a list of data structures that serve specific purposes when solving LeetCode problems.
We show how to express a discrete-time infinite impulse response (IIR) filter in state-space form.
We derive the Direct Form I and Direct Form II implementations of a discrete-time infinite impulse response (IIR) filter.
We prove that every square can be partitioned into $n$ squares for every $n \geq 6$.
We describe what fencepost errors are, how to avoid them, and provide a precise derivation for why they occur.