bgopc's blog

By bgopc, history, 8 months ago, In English
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8 months ago, # |
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Gatcha,

"binary search problems that are worth solving"

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    8 months ago, # ^ |
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    it's solvable using bs, doesn't require it, (that blog by is-this-fft who told us not to limit ourself etc)

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8 months ago, # |
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One of the best binary search problems to start with is CodeChef - QHOUSE. An interactive problem that make you feel binary search.

Also, 670D2 - Волшебный порошок - 2 is very good for starters.

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    8 months ago, # ^ |
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    added

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    8 months ago, # ^ |
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    For the first problem do we need more than 30 queries?

    Spoiler
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      8 months ago, # ^ |
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      Which one?

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        8 months ago, # ^ |
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        I was talking about QHOUSE suggested by arpa

        since codechef is not supporting interactive due to migration of new judge

        i was wondering if my approach is correct or not

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    5 months ago, # ^ |
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    Thanks, interesting problems, helped.

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8 months ago, # |
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Can you tell some source where i can take hint of step3 of BS of EDU section?

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8 months ago, # |
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1486D — Max Median appears twice in your list.

Also, can you recommend some harder (2100+) binary search problems

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    8 months ago, # ^ |
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    You know their idea, it makes that way easier

    I'll edit the list

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    8 months ago, # ^ |
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    Here are the problems:

    Range Deleting
    Microtransactions (hard version)
    Mr. Kitayuta vs. Bamboos
    Thoroughly Bureaucratic Organization
    Lemmings
    Degenerate Matrix
    Guess The Maximums

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8 months ago, # |
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I liked the last div3, binary search E. Definitely, a good practice problem for BS.

How I solved (don't open unless u tried)