MO’s Algorithm: Efficient Way to Solve Offline Range Query Problems
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MO’s Algorithm aka Square Root Decomposition, a very efficient and easy technique to solve Range Query Problems (RQP) For the algorithm to work, the RQP has to be offline. In this post, we will understand about RQQP, Offline RPQ, Naive Approach, and an Efficient Approach using MO's Algorithm. For the problem, we are given a sequence A of N values A⁁, A₂, A , …, Aᵣ₋₁, apronounced A[j] is vowel.