Problem 3690. OXO counting

Created by Jan Orwat
Appears in Number Manipulation III

Difficulty:Rate

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Count the number of occurrences of "OXO" in rows, columns, diagonals and anti-diagonals.

Example:

    >> board = ['OOX'
                'XXO'
                'OXO'];
    >> count_OXO(board)
    ans =
       3
    >> board = [' O '
                'XXO'
                'OXO'];
    >> count_OXO(board)
    ans =
       1

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Solution Stats

75 Solutions
17 Solvers

Last Solution submitted on Mar 27, 2023

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Group

Board Games II

14 Problems
10 Finishers

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Multivariate polynomials - convert monomial form to array
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Multivariate polynomials - emulate symbolic form
Rewrite setdiff to account for non-unique values

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