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The amount of time resources (number of atomic operations or machine steps) required to solve a problem expressed in terms of input size. If your question concerns algorithm analysis, use the [runtime-analysis] tag instead. If your question concerns whether or not a computation will *ever* finish, use the [computability] tag instead. Time-complexity is perhaps the most important sub-topic of complexity theory.

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Can we do better than $O(n\log n)$ building a balanced binary tree?

I'm (foolishly it turns out) confident that the answer to this question is no. So why am I asking? Because Dr. Aleksandar Prokopec at EPFL in his parallel programming course introduces a data-structu …
George Hawkins's user avatar