Representation of Persistent Segment Tree
Each node in a Persistent Segment Tree contains:
- Value: The value stored at this node, which typically represents an aggregate (like sum, min, or max) over a segment of the array.
- Left: A reference to the left child node.
- Right: A reference to the right child node.
class Node:
def __init__(self, value=0, left=None, right=None):
# Initialize a new node
self.value = value # The value stored in this node
self.left = left # Reference to the left child node
self.right = right # Reference to the right child node
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.
Persistent segment trees
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