Harden heap merge streams
Hard C++ arena: priority_queue, custom comparators, and k-way merge
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Missing prerequisites: cpp-easy-heap-merge
Log shards arrive sorted by timestamp and must be merged without loading everything. You are working inside a C++ performance arena, and the arena only clears when the result is safe, deterministic, and explainable.
Learn to apply priority_queue, custom comparators, and k-way merge in a C++ performance arena while explaining the invariant, safety constraints, and hidden edge cases.
- Demonstrates priority_queue, custom comparators, and k-way merge
- Handles the visible sample and hidden edge cases
- Keeps output deterministic and explainable
- Avoids unsafe dynamic execution
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