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⚙️AlgorithmIntermediate

Lowest Common Ancestor (LCA)

The Lowest Common Ancestor (LCA) of two nodes in a rooted tree is the deepest node that is an ancestor of both.

#lowest common ancestor#binary lifting#euler tour+12
🗂️Data StructureAdvanced

Suffix Array - LCP Array Applications

The LCP (Longest Common Prefix) array, built alongside a suffix array, unlocks fast solutions to problems like longest repeated substring, number of distinct substrings, and longest common substring.

#suffix array
Advanced
Filtering by:
#sparse table
#lcp array
#kasai algorithm
+12
🗂️Data StructureAdvanced

Suffix Array

A suffix array stores the starting indices of all suffixes of a string in lexicographic order.

#suffix array#lcp array#kasai algorithm+11
🗂️Data StructureIntermediate

Sparse Table

A Sparse Table is a static range-query data structure that preprocesses an array in O(n \log n) time and answers many queries in O(1) time.

#sparse table#range minimum query#rmq+12