Пост Mo's algorithm is an efficient offline query-processing technique based on Square Root (sqrt) Decomposition. It is desig…

Mo's algorithm is an efficient offline query-processing technique based on Square Root (sqrt) Decomposition. It is designed to answer multiple range queries [L, R] on a static array in an optimized order, achieving an overall time complexity ofO((N + Q) * sqrt(N)), where N is the number of elements and Q is the number of queries. Popularized by Chinese competitive programmer Mo Tao, the algorithm allows you to solve range query problems that cannot easily be solved using standard segment trees or Fenwick trees (such as finding the number of distinct elements or the most frequent element in a range). CP Algo Article: https://cp-algorithms.com/data_structures/sqrt_decomposition.html CF Blog about Mo's algorithm: https://codeforces.com/blog/entry/81716 LC Problem to practice: https://leetcode.com/problems/valid-k-unique-subarrays-i #algorithms #notes