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Mykola Fedurko B1Z0N

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B1Z0N /
Last active August 23, 2023 16:53
A piece of code that will allow you to spam with reactions on a new message in a chat. Requires telethon installed.
from telethon import TelegramClient, events, types
from import SendReactionRequest
from telethon.errors.rpcerrorlist import ReactionInvalidError
import random
# Config from
api_id = 123456 # your api id here
api_hash = 'aajwjwjwjwjwiwiwisdjsdjsddsk' # you api hash here
B1Z0N / All.cs
Last active August 23, 2022 12:24
using System.Runtime.CompilerServices;
using System;
public static class Program
public static Logger logger = new Logger { EnabledLevel = LogLevel.Error };
public static void Main()
B1Z0N /
Last active February 20, 2022 15:32
Postgres setup
  1. Install postgres.
  2. Setup password for postgres linux user: sudo passwd postgres
  3. Switch to this user: su - postgres
  4. Run psql -U postgres
  5. Create user with your name as in linux. Grant it some privileges. For all privileges:
CREATE USER {your_username} WITH ENCRYPTED PASSWORD '{your_password}';
B1Z0N /
Last active December 12, 2021 13:02
Equals and GetHashCode in C#


If you need to define equality:

  1. Override object.Equals to define logical, human desirable equality in case of classes and in case of structs a lot more efficient equality.
    • For classes default Object.Equals compares references to memory(e.g. only the same object will be equal to itself, so it's not always as human would expect).
    • For structs default ValueType.Equals calls Equals on every field using reflection(which is very slow).
  2. Implement IEquatable to optimize for value types and just to declare intent in any case.
B1Z0N / Notify-Job.ps1
Created September 3, 2021 23:48
Powershell function(cmdlet) to set notification for job completion.
function Notify-Job {
class Singleton(type):
_instances = {}
def __call__(cls, *args, **kwargs):
if cls not in cls._instances:
cls._instances[cls] = super(Singleton, cls).__call__(*args, **kwargs)
return cls._instances[cls]
class NoneDict(dict, metaclass=Singleton):
def __getitem__(self, key):
return NoneDict()
using System.Linq.Expressions;
using System;
public static class Program
public static void Main()
B1Z0N / BigDecimal.cs
Created July 23, 2020 22:40 — forked from nberardi/BigDecimal.cs
BigDecimal type in .NET
using System;
using System.Linq;
namespace System.Numerics
public struct BigDecimal : IConvertible, IFormattable, IComparable, IComparable<BigDecimal>, IEquatable<BigDecimal>
public static readonly BigDecimal MinusOne = new BigDecimal(BigInteger.MinusOne, 0);
public static readonly BigDecimal Zero = new BigDecimal(BigInteger.Zero, 0);
public static readonly BigDecimal One = new BigDecimal(BigInteger.One, 0);
B1Z0N / ls.cpp
Last active May 17, 2020 17:06
List directories using cpp(Linux only, waiting for c++20 to handle subtle moments)
#include <iostream>
#include <vector>
#include <string>
#include <cstring>
#include <filesystem>
#include <sstream>
#include <chrono>
#include <type_traits>
B1Z0N / gist:028d1667f4f576dac79b4453f07cd065
Created April 14, 2020 10:21 — forked from prathe/gist:2439752
Python Regular Expression: double-quoted string literals that allows for escaped double quotes
# Tricky REs with ^ and \
# Assign to regexp a regular expression for double-quoted string literals that
# allows for escaped double quotes.
# Hint: Escape " and \
# Hint: (?: (?: ) )
import re