All Your Base

Challenge Overview

Convert a number, represented as a sequence of digits in one base, to any other base.

Visit the all-your-base 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 @BadKarmaZen (⭐ 5) — View on Exercism
Solution 2 by @EnderDroid (⭐ 0) — View on Exercism
Solution 3 by @CrazyZ (⭐ 0) — View on Exercism

Source: Exercism csharp/all-your-base

💡 View Solution

using System;

public static class AllYourBase
{
    public static int[] Rebase(int inputBase, int[] inputDigits, int outputBase)
    {
        if (inputBase <= 1 || outputBase <= 1) throw new ArgumentException();
        int Validate(int digit) => (digit >= inputBase || digit < 0) ? throw new ArgumentException() : digit;

        int Unbase() => inputDigits.Reverse().Select((d, i) => Validate(d) * (int)Math.Pow(inputBase, i)).Sum();