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🗂️Data StructureAdvanced

Euler Tour Tree

An Euler Tour Tree represents each rooted tree as a DFS open/close sequence so that every subtree is a single contiguous interval.

#euler tour tree#implicit treap#dynamic forest+11
🗂️Data StructureAdvanced

Persistent Array and Treap

Persistence lets you keep every past version of a data structure while making O(log n) updates and queries on any version.

#persistent array
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#implicit treap
#persistent segment tree
#treap
+12
🗂️Data StructureAdvanced

Implicit Treap

An implicit treap is a randomized balanced binary tree that treats array positions as keys without storing them explicitly.

#implicit treap#treap#split and merge+11
🗂️Data StructureAdvanced

Treap

A treap is a binary search tree on keys combined with a heap on random priorities, which keeps the tree balanced in expectation.

#treap#randomized bst#fhq treap+12