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A centralized coordination service for distributed systems providing configuration management, leader election, distributed locking, and service discovery

Distributed stream processing framework for real-time analytics, event-driven applications, and complex event processing

Distributed streaming platform designed for high-throughput, real-time data pipelines and event-driven architectures

Distributed search and analytics engine built on Apache Lucene for real-time search, logging, and data analytics

Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted order, not the kth distinct element.

Given an array of intervals where intervals[i] = [start_i, end_i], merge all overlapping intervals and return an array of the non-overlapping intervals that cover all the intervals in the input.

Merge k sorted arrays into one sorted array using heap

LeetCode 88 merge sorted array in-place: reverse two pointers (merge from end) in O(m+n) time, O(1) space. Step-by-step + examples.

Managing backward and forward compatibility in data schemas

JSON vs Protocol Buffers vs Avro vs Thrift - choosing the right format

Find the shortest transformation sequence from beginWord to endWord using single character changes