First speedy solution for Xs and Os Referee by szymcio2001 - python coding challenges

Enable Javascript in your browser and then refresh this page, for a much enhanced experience.

First solution in Speedy category for Xs and Os Referee by szymcio2001

import re

def checkio(game_result):
    winning =  ("XXX......",
                "...XXX...",
                "......XXX",
                "X..X..X..",
                ".X..X..X.",
                "..X..X..X",
                "X...X...X",
                "..X.X.X..")
    game = "".join(game_result)
    for w in winning:
        if re.match(w, game):
            return "X"
        if re.match(w.replace("X", "O"), game):
            return "O"
    return "D"

if __name__ == '__main__':
    #These "asserts" using only for self-checking and not necessary for auto-testing
    assert checkio([
        "X.O",
        "XX.",
        "XOO"]) == "X", "Xs wins"
    assert checkio([
        "OO.",
        "XOX",
        "XOX"]) == "O", "Os wins"
    assert checkio([
        "OOX",
        "XXO",
        "OXX"]) == "D", "Draw"
    assert checkio([
        "O.X",
        "XX.",
        "XOO"]) == "X", "Xs wins again"

April 2, 2015

Comments:

yakirgb on Nov. 24, 2015, 9:19 p.m.
nice

emo_code on Feb. 11, 2018, 2:03 p.m.
cool, thanks

Ulukai85 on Oct. 10, 2020, 5:41 p.m.
That's a quite funny program :) . I like your dedication with writing out the winning lineups. But why did you then use RE? Couldn't you just ordinarily compare the winning lines with the game result per '==' ?

mmartsinenko on Dec. 9, 2024, 11:25 a.m.
This solution uses regular expressions to check for winning patterns. While regex is powerful, it adds unnecessary complexity and overhead for such a small fixed-size problem. It is slower than my solution due to pattern-matching overhead.

List, list and list again

0 %

You ClassRoom Demo is Ready With the new tool CheckiO ClassRoom, you will be able to analyze your students' progress, have your own leaderboard, change missions order on the map, and so on.