What is the time complexity of bit manipulation playground?

Worst case O(1) per operation. Space complexity is O(1).

Bit manipulation playground

medium

x & (x−1) clears the lowest set bit; x & −x isolates it. Between them they give you popcount, power-of-two tests and subset enumeration, all in single instructions.

Worst O(1) per operationSpace O(1)

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Where to go next

Fenwick tree (BIT)

hard

Prefix sums in one array, driven by the lowest set bit.

Subsets (power set)

medium

One binary decision per element - and a bitmask does the same job.

Hash table with chaining

medium

Collisions share a bucket, and load factor is everything.