bgopc's blog

Binary search problems worth solving
By bgopc, history, 8 months ago, In English

Hello cf community, in this blog I tried to gather binary search problems that are worth solving and maybe makes you learn it better, if there exist any blog tell me I'll remove this

problems

These problems are mostly specialist/expert level based but everyone can solve them, have fun and Hope you enjoy them

Peace

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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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    6 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)
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