Here's a decision guide: Use Segment Tree when: - You need per operation - The operation is associative (sum, min, max, gcd) - You need point or range updates with point or range queries Use Sqrt Decomposition when: - is acceptable - You want simpler code - The problem doesn't fit segment tree structure well Use MO's Algorithm when: - Queries are offline (all known in advance) - You can efficiently extend/shrink the range by one element - Segment trees can't handle the query type
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$ curl repovive.com/roadmaps/data-structures/sqrt-decomposition/comparing-sqrt-to-other-structures
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