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Discussion on: Daily Challenge #273 - Remove Duplicates

cipharius profile image
Valts Liepiņš

Perhaps you're mistaking IntMap for Map?

Here, in Map documentation most lookup and insertion operations are indeed O(log n):

But in IntMap documentation, you can see that the actual complexity is O(min(n, W)), where W is size of integer type (32 or 64):

This effectively means that after IntMap contains more than 64 elements, the time complexity is constant O(W) or O(1).

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akashkava profile image
Akash Kava

Interesting .. I wasn't aware of that.