Implement RLE and Bit Packing Encoder
Implement an encoding algorithm that combines Run Length Encoding (RLE) and Bit Packing (BP). RLE encodes consecutive identical elements as RLE[element, frequency] and is applicable when there are 8 or more repetitions. BP packs exactly 8 non-RLE-eligible elements. RLE is always preferred: if the remaining elements at the end of a sequence are all identical (even if fewer than 8), they are encoded using RLE rather than BP. Examples: - [5,5,5] → RLE[5,3] - [1,1,1,2,3,4,5] → BP[1,1,1,2,3,4,5] - [0,0,0,0,0,0,0,0,0,2,3,4] → RLE[0,9], BP[2,3,4] - [1,1,1,1,1,1,1,1,1,2,2,1] → RLE[1,9], BP[2,2,1] - [0,0,0,0,0,0,0,0,0,2,2,2] → RLE[0,9], RLE[2,3]
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Late December, 2025
Senior
Mid December, 2025
Senior
There are two encoding types: RLE (Run Length Encoding) and BP (Bit Packing). RLE compresses consecutive repeated elements into the format RLE[element, frequency]. It requires a minimum of 8 repetitions to be applicable. Example: [1,1,1,1,1] → RLE[1,5] BP packs exactly 8 elements that are not eligible for RLE encoding. Default Rule: RLE is always preferred. This means if the remaining elements at the end of a sequence are all identical (even if fewer than 8), they are still encoded using RLE rather than BP. for e.g. [5,5,5] -> RLE[5,3] [1,1,1, 2, 3, 4, 5] -> BP[1,1,1,2,3,4,5] [0,0,0,0,0,0,0,0,0,2,3,4] -> RLE[0,9], BP[2,3,4] [1,1,1,1,1,1,1,1,1,2,2,1] -> RLE[1,9], BP[2,2,1] [0,0,0,0,0,0,0,0,0,2,2,2] -> RLE[0,9], RLE[2,3]
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