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using System;
using System.Diagnostics;
using System.Linq;
using System.Net;
using System.Net.Sockets;
using Gestor.Common.Validation;
namespace Gestor.Common.Helpers;
public class Functions
{
public static Stopwatch Stopwatch;
public static DateTime? StartTime;
public static int Compare(string original, string modified)
{
if (original == null)
{
original = "";
}
if (modified == null)
{
modified = "";
}
string text = original.ToLongNullable().ToString();
if (!string.IsNullOrWhiteSpace(text))
{
original = text;
}
text = modified.ToLongNullable().ToString();
if (!string.IsNullOrWhiteSpace(text))
{
modified = text;
}
int length = original.Length;
int length2 = modified.Length;
int[,] array = new int[length + 1, length2 + 1];
for (int i = 0; i <= length; i++)
{
array[i, 0] = i;
}
for (int j = 0; j <= length2; j++)
{
array[0, j] = j;
}
for (int k = 1; k <= length; k++)
{
for (int l = 1; l <= length2; l++)
{
int num = ((modified[l - 1] != original[k - 1]) ? 1 : 0);
int[] source = new int[3]
{
array[k - 1, l] + 1,
array[k, l - 1] + 1,
array[k - 1, l - 1] + num
};
array[k, l] = source.Min();
if (k > 1 && l > 1 && original[k - 1] == modified[l - 2] && original[k - 2] == modified[l - 1])
{
array[k, l] = Math.Min(array[k, l], array[k - 2, l - 2] + num);
}
}
}
return array[length, length2];
}
public static DateTime GetNetworkTime()
{
try
{
if (StartTime.HasValue)
{
return StartTime.Value.AddMilliseconds(Stopwatch.ElapsedMilliseconds);
}
byte[] array = new byte[48];
array[0] = 27;
IPEndPoint remoteEP = new IPEndPoint(Dns.GetHostEntry("time.google.com").AddressList.First((IPAddress a) => a.AddressFamily == AddressFamily.InterNetwork), 123);
using (Socket socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp))
{
socket.Connect(remoteEP);
socket.ReceiveTimeout = 3000;
socket.Send(array);
socket.Receive(array);
socket.Close();
}
ulong num = ((ulong)array[40] << 24) | ((ulong)array[41] << 16) | ((ulong)array[42] << 8) | array[43];
ulong num2 = ((ulong)array[44] << 24) | ((ulong)array[45] << 16) | ((ulong)array[46] << 8) | array[47];
ulong num3 = num * 1000 + num2 * 1000 / 4294967296L;
DateTime value = new DateTime(1900, 1, 1).AddMilliseconds((long)num3).ToLocalTime();
StartTime = value;
Stopwatch = Stopwatch.StartNew();
return StartTime.Value;
}
catch (Exception)
{
StartTime = DateTime.Now;
Stopwatch = Stopwatch.StartNew();
return StartTime.Value;
}
}
}
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