Wu Shixiong's Large Model Academy

Sep 6, 2023 · Fundamentals

How to Minimize Flips to Make a Binary String Strictly Increasing (DP Solution)

Given a binary string of A's and B's, the task is to compute the minimum number of character flips required to transform it into a strictly increasing (lexicographically non‑decreasing) string, using a state‑DP approach that runs in O(N) time and O(N) space.