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JS Study Group: Algorithms

Every other week we will be getting together to solve one large or a series of small algorithm puzzles in pairs or small groups. This is a highly interactive and supportive group to explore our understanding of Javascript and different algorithm concepts. We welcome all levels of JS experience!

Typical Agenda

8:00-8:10 - icebreaker/introduction/announcements
8:10-8:20 - present and discuss the algorithm(s)
8:20-9:15 - pair off and solve algorithm(s)
9:15-9:30ish - discuss solutions as a group

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  • Gregory H.

    Tonight's Algo:

    A robot is located at the top left corner of a
    5x5 grid and is trying to reach the bottom right corner.
    The robot can move either up, down, left, or right, but
    cannot visit the same spot twice. How many possible unique
    paths are there to the bottom right corner?

    Make your solution work for a grid of any size.

    Solutions:
    https://gist.github.com/EpiphanyMachine/6879694

    October 7, 2013

  • A former member
    A former member

    Could you please post the final optimized solution, as well as the a run down of the correct solutions for n of 2 to 6? Want to check mine is working proper, then see how it stacks up to the group's final.

    October 7, 2013

    • Gregory H.

      the most optimized we came up with is the third solution on the gist link above

      October 8, 2013

    • Gregory H.

      2: 2
      3: 12
      4: 184
      5:[masked]:[masked]

      October 8, 2013

  • Hamilton C.

    Tonight was great. Thanks Greg.

    October 7, 2013

  • WIL P.

    Disappointed to note work is intruding and that I cannot attend tonight. I look forward to attending the next one.

    October 7, 2013

  • Stephen B.

    can't make it. undoing my rsvp

    October 7, 2013

    • Joao M.

      Ditto. Next time.

      October 7, 2013

  • WIL P.

    Is it safe to park/lock my bicycle at Hack Reactor?

    October 7, 2013

    • Gregory H.

      Some of the students use the bike section in the basement of the building. I would bring a lock but it should be fine.

      October 7, 2013

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