Problem 42633. Cumulative maximum of an array

• Created by Matthew Eicholtz
• Appears in 2 groups

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Matrix Manipulation III

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• 25 Finishers

Tough Stuff

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Find the cumulative maximum of an array without using the built-in function cummax (and a few others). Your function should act identically to cummax, allowing the same inputs.

Examples

If X = [0 4 3

6 5 2]

cumax(X,1) is [0 4 3 and cumax(X,2) is [0 4 4

6 5 3] 6 6 6]

cumax(X,1,'reverse') is [6 5 3 and cumax(X,2,'reverse') is [4 4 3

6 5 2] 6 5 2]

Also,

cumax([8 9 1 10 6 1 3 6 10 10]) returns [8 9 9 10 10 10 10 10 10 10]

cumax([8 9 1 10 6 1 3 6 10 10]') returns [8 9 9 10 10 10 10 10 10 10]'

See also cumin.

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Solution Stats

16.45% Correct | 83.55% Incorrect

• 231 Solutions
• 36 Solvers

Last Solution submitted on Apr 07, 2025

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