Задача: Квадрад слов

CheckWordSquare.cs

using System;
using System.Collections.Generic;
					
public class Program
{
	public static bool CheckWordSquare(List<string> words) 
	{
		int len = words.Count;

		for(int i = 0; i < len; i++)
		{
		    for(int j = 0; j < words[i].Length; j++)
		    {
			if (j >= len || words[j].Length <= i || words[j][i] != words[i][j])
			    return false;
		    }
		}

		return true;
	}
	
	public static void Main()
	{
		Console.WriteLine("UniLecs");
		
		// tests
		Console.WriteLine(CheckWordSquare(new List<string>() { "abcd", "bnrt", "crm", "dt" })); // true
		Console.WriteLine(CheckWordSquare(new List<string>() { "ball","area","read","lady" })); // false
	}
}