Stop using Dictionaries for THIS in Python #programming #python #coding Most developers solve the 'First Unique Character' problem using a Hash Map or Dictionary. While that works, it consumes significant memory overhead for the data structure. In this video, I show you a 'low-level' optimization using Bit Manipulation. By using just two integers and bitwise operators, we can track character frequency with zero Dictionary overhead. This is a great technique for constrained environments or just t
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