👉 Twice computing, also known as two-pass computation or double-pass reduction, is an optimization technique used in algorithms to improve efficiency by reducing redundant calculations. In its simplest form, it involves performing the same computation twice but with a strategic difference: the first pass computes intermediate results that are then reused in the second pass to avoid redundant work. This is particularly useful in problems involving dynamic programming, where overlapping subproblems are common. By storing and reusing these intermediate results, twice computing minimizes the overall computational complexity, making the solution more efficient and scalable.
