What is Persistent Segment Tree?
Persistence in data structures refers to the ability to maintain access to previous versions of the data structure even after modifications. This can be achieved using techniques such as path copying, where only the parts of the structure that need to be changed are copied, thus saving space and time.
Persistent Segment Tree in Python
Persistent data structures are a powerful tool in computer science, enabling us to maintain and access multiple versions of a data structure over time. One such structure is the Persistent Segment Tree. Segment trees are versatile data structures that allow efficient querying and updating of array intervals. By making a segment tree persistent, we enhance its capability to maintain historical versions, which is particularly useful in competitive programming and real-time applications where rollback and point-in-time queries are needed. This article explores the concept, implementation in Python.
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