How to resolve the algorithm Arbitrary-precision integers (included) step by step in the C# programming language

Published on 12 May 2024 09:40 PM

How to resolve the algorithm Arbitrary-precision integers (included) step by step in the C# programming language

Table of Contents

Problem Statement

Using the in-built capabilities of your language, calculate the integer value of:

Let's start with the solution:

Step by Step solution about How to resolve the algorithm Arbitrary-precision integers (included) step by step in the C# programming language

The provided code is written in C# and performs the following tasks:

  • It calculates the value of n using exponentiation operations: BigInteger.Pow(5, BigInteger.Pow(4, BigInteger.Pow(3, 2))). This results in n having a very large value.

    • BigInteger.Pow(base, exponent) calculates base raised to the power of exponent and returns the result as a BigInteger data type.
  • It converts the calculated n to a string for further processing.

  • It performs some assertions (Debug.Assert) to verify if the calculated n meets certain conditions:

    • It checks if the string representation of n has a length of 183231 characters.
    • It checks if the string representation of n starts with the substring "62060698786608744707".
    • It checks if the string representation of n ends with the substring "92256259918212890625".
  • It then prints the value of n in a more readable format by showing the first 20 and last 20 digits of the string representation.

  • Finally, it outputs the length of the string representation of n to show the number of digits it has.

In summary, the code calculates a very large integer n using exponentiation operations and then performs various checks and outputs to verify and display the result.

Source code in the csharp programming language

using System;
using System.Diagnostics;
using System.Linq;
using System.Numerics;

static class Program {
    static void Main() {
        BigInteger n = BigInteger.Pow(5, (int)BigInteger.Pow(4, (int)BigInteger.Pow(3, 2)));
        string result = n.ToString();

        Debug.Assert(result.Length == 183231);
        Debug.Assert(result.StartsWith("62060698786608744707"));
        Debug.Assert(result.EndsWith("92256259918212890625"));

        Console.WriteLine("n = 5^4^3^2");
        Console.WriteLine("n = {0}...{1}", 
            result.Substring(0, 20),
            result.Substring(result.Length - 20, 20)
            );

        Console.WriteLine("n digits = {0}", result.Length);
    }
}


  

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