Variable Length Quantity

Challenge Overview

Implement variable length quantity encoding and decoding.

Visit the variable-length-quantity exercise on Exercism to read the full instructions and download the exercise files.

Community Solutions

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The following are the top 3 community solutions by stars:

Solution 1 by @hayashida-katsutoshi (⭐ 6) — View on Exercism
Solution 2 by @mdelite (⭐ 0) — View on Exercism
Solution 3 by @prajakta2022 (⭐ 0) — View on Exercism

Source: Exercism csharp/variable-length-quantity

💡 View Solution

using System;

public static class VariableLengthQuantity
{
    public static uint[] Encode(uint[] numbers) => numbers.SelectMany(n => Split(n).Reverse()).ToArray();
    public static uint[] Decode(uint[] bytes) => Join(bytes).ToArray();

    private static IEnumerable<uint> Split(uint number)
    {
        yield return number & 0x7f;