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Shayan.P's blog

A data structure for maximizing and asking sum of a segment
By Shayan.P, history, 6 years ago, In English

Hello every one... I need a data structure handling two type of queries. 1. Maximize(l,r,x) 2. Sum(l,r)

I have a O(sqrt(n)*log(n)) solution using sqrt decomposition + set.But I am looking for a better solution. Thanks in advance

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6 years ago, # |
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Auto comment: topic has been updated by Shayan.P (previous revision, new revision, compare).

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6 years ago, # |
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Maximise (l,r,x) means set a[i] = max(a[i], x) ?

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6 years ago, # |
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Segment tree beats.

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    6 years ago, # ^ |
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    It was awesome. Thank you!

    Btw do you have any link to Chinese trick like this?

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6 years ago, # |
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It's possible sqrt decomposition in this case without logarithmic factor? (Lazy sqrt decomposition or dsu approach? Yeah... segment tree beats is cool)

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    6 years ago, # ^ |
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    By setting a proper bucket size, you can achieve per query.

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      6 years ago, # ^ |
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      Yeah, I know...,but with potential function analyze (7'-'). u.u maybe, I hope :v

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