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lowest_common_ancestor_problem (330B)


      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], cf for instance https://en.wikipedia.org/wiki/Tarjan%27s_off-line_lowest_common_ancestors_algorithm
      6 
      7 Up: [computational_problem], [lowest_common_ancestor]