LongestOrderedSequence

LongestOrderedSequence[list] finds the longest ordered sequence of contiguous or disjoint elements in list.

• LongestOrderedSequence[list, p] finds the longest ordered sequence using the ordering function p.

Examples

LongestOrderedSequence[{3, 1, 4, 1, 5, 9, 2, 6}]

LongestOrderedSequence[{5, 3, 8, 1, 9}, Greater]

Please visit the official Wolfram Language Reference for more details.