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lowest_common_ancestor_problem (393B)

      1 # Lowest common ancestor problem
      2 
      3 Given two [nodes] in a [tree], find their [LCA]
      4 
      5 A [tree] can be [preprocessed] in [linear_time] to support such queries in [constant_time]
      6 - cf https://en.wikipedia.org/wiki/Tarjan%27s_off-line_lowest_common_ancestors_algorithm
      7 
      8 [lowest_common_ancestor_problem_dynamic]
      9 
     10 Up: [computational_problem], [lowest_common_ancestor]
     11 
     12 Aliases: LCA query, LCA queries