How Can I Efficiently Convert Gigantic String-Represented Integers to Hexadecimal in C#?

Convert huge string representation of integer to hexadecimal in C#

For very large integers represented in C# format, converting them to their equivalent hexadecimal representation requires new methods beyond conventional methods. The sheer size of these numbers (often over 50 digits) renders conventional techniques ineffective.

Custom conversion algorithm

To deal with this challenge, a specialized algorithm is needed. This algorithm includes:

1. Character to integer conversion: Converts each character in a string to its corresponding integer value.
2. Multiplication and addition: Multiply the result of each number by 10 and add its current value.
3. Storing the result: Store the number in a list of bytes.
4. Convert bytes to hexadecimal: Finally, convert the bytes to their hexadecimal representation.

Conversion example

Consider the following huge integers:

<code>843370923007003347112437570992242323</code>

Applying the above algorithm yields the hexadecimal equivalent:

<code>27C400BE7196066E4C6218B4C647E1C6DB721</code>

By employing this custom conversion technique, programmers can efficiently convert extremely large integers represented as strings to their corresponding hexadecimal values.

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