Find Median from Data Stream — Hard DSA Interview Problem | Interview Prep Buddy

Find Median from Data Stream — Hard Coding Interview Question

Design a data structure that supports adding numbers and finding the median of all added elements.

Example

Input: addNum(1), addNum(2), findMedian() -> 1.5, addNum(3), findMedian() -> 2

Output: 2

Constraints

At most 5 * 10^4 calls will be made

Topics & Companies

Topics: heap

Asked by: Google, Amazon, Meta

Optimal Solution Complexity

Time complexity: O(n). Space complexity: O(n).

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