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  2. Tic-tac-toe - Wikipedia

    en.wikipedia.org/wiki/Tic-tac-toe

    Tic-tac-toe A completed game of tic-tac-toe Other names Noughts and Crosses Xs and Os Genres Paper-and-pencil game Players 2 Setup time Minimal Playing time ~1 minute Chance None Skills Strategy, tactics, observation Tic-tac-toe (American English), noughts and crosses (Commonwealth English), or Xs and Os (Canadian or Irish English) is a paper-and-pencil game for two players who take turns ...

  3. Caesar cipher - Wikipedia

    en.wikipedia.org/wiki/Caesar_cipher

    The cipher illustrated here uses a left shift of 3, so that (for example) each occurrence of E in the plaintext becomes B in the ciphertext. In cryptography , a Caesar cipher , also known as Caesar's cipher , the shift cipher , Caesar's code , or Caesar shift , is one of the simplest and most widely known encryption techniques.

  4. Solved game - Wikipedia

    en.wikipedia.org/wiki/Solved_game

    A solved game is a game whose outcome (win, lose or draw) can be correctly predicted from any position, assuming that both players play perfectly.This concept is usually applied to abstract strategy games, and especially to games with full information and no element of chance; solving such a game may use combinatorial game theory or computer assistance.

  5. Substitution cipher - Wikipedia

    en.wikipedia.org/wiki/Substitution_cipher

    The Standard Galactic Alphabet, the writing system in the Commander Keen video games and in Minecraft. The Al Bhed language in Final Fantasy X is actually a substitution cipher, although it is pronounced phonetically (i.e. "you" in English is translated to "oui" in Al Bhed, but is pronounced the same way that "oui" is pronounced in French).

  6. LeetCode - Wikipedia

    en.wikipedia.org/wiki/LeetCode

    LeetCode LLC, doing business as LeetCode, is an online platform for coding interview preparation. The platform provides coding and algorithmic problems intended for users to practice coding . [ 1 ] LeetCode has gained popularity among job seekers in the software industry and coding enthusiasts as a resource for technical interviews and coding ...

  7. Leet - Wikipedia

    en.wikipedia.org/wiki/Leet

    For example, the first may be seen in the word hax(x)or (H4x0r in leet) / ˈ h æ k s ɔːr / and the second in pwnzor / ˈ oʊ n z ɔːr /. Additionally, this nominalization may also be inflected with all of the suffixes of regular English verbs. The letter 'o' is often replaced with the numeral 0.-age suffix

  8. Competitive programming - Wikipedia

    en.wikipedia.org/wiki/Competitive_programming

    LeetCode: LeetCode has over 2,300 questions covering many different programming concepts and offers weekly and bi-weekly contests. The programming tasks are offered in English and Chinese. Project Euler [18] Large collection of computational math problems (i.e. not directly related to programming but often requiring programming skills for ...

  9. List of games in game theory - Wikipedia

    en.wikipedia.org/wiki/List_of_games_in_game_theory

    Perfect information: A game has perfect information if it is a sequential game and every player knows the strategies chosen by the players who preceded them. Constant sum: A game is a constant sum game if the sum of the payoffs to every player are the same for every single set of strategies. In these games, one player gains if and only if ...