rudolph flash

Level 16

25472 XP

My Courses

2853 XP

2311 XP

2141 XP

1923 XP

1816 XP

1627 XP

960 XP

419 XP

404 XP

234 XP

212 XP

176 XP

109 XP

My Codes

web

Balls

Last Modified: 06/25/2019 20:05:12

web

Custom checkbox - vue.js

Last Modified: 06/06/2019 09:32:57

Doubling each letter

Last Modified: 06/03/2019 14:24:43

Reverse integer

Last Modified: 06/03/2019 14:17:20

java

FizzBazz #4

Last Modified: 06/02/2019 10:28:28

web

FizzBazz

Last Modified: 06/01/2019 14:22:11

IEnumerable<T>: Interesting behavior

Last Modified: 05/30/2019 18:29:52

web

Async loops: loop processing

Last Modified: 05/22/2019 19:08:08

web

Async/await anomaly?

Last Modified: 05/21/2019 22:35:41

web

Sync loops

Last Modified: 05/21/2019 21:18:26

web

Async loops: do not wait

Last Modified: 05/21/2019 21:18:13

web

forEach() with splice() inside

Last Modified: 05/21/2019 19:37:39

Command Line

Last Modified: 05/21/2019 04:24:31

filter() function. Version 2.

Last Modified: 05/19/2019 17:38:07

filter() function

Last Modified: 05/19/2019 15:34:30

java

Random greeting

Last Modified: 05/18/2019 17:45:58

web

Promise.all

Last Modified: 05/15/2019 20:49:24

web

forEach() with return [non-working]

Last Modified: 05/09/2019 20:24:55

Prime: 2v

Last Modified: 05/09/2019 07:42:50

web

String " " in JS

Last Modified: 05/07/2019 13:50:37

Last word in a sentence?

Last Modified: 05/04/2019 13:46:14

DP: Strategy. Soccer

Last Modified: 04/30/2019 06:03:50

web

Collatz Conjecture

Last Modified: 04/18/2019 16:56:58

web

Component

Last Modified: 04/18/2019 16:53:50

web

JS Tricks: sequence generation

Last Modified: 04/10/2019 20:20:33

web

Async

Last Modified: 04/09/2019 07:52:34

Interface C#

Last Modified: 04/06/2019 22:23:54

java

OOP

Last Modified: 03/23/2019 21:49:28

web

Vue.js: sample

Last Modified: 03/20/2019 21:21:33

java

Threads

Last Modified: 03/20/2019 10:53:44

java

Static field v2

Last Modified: 03/18/2019 21:39:43

web

Jeans

Last Modified: 03/18/2019 20:50:08

java

Java interfaces

Last Modified: 03/18/2019 20:31:23

java

Static example

Last Modified: 03/18/2019 13:23:34

java

Static field

Last Modified: 03/18/2019 11:03:14

java

Explanation: how the stack works

Last Modified: 03/17/2019 20:10:15

java

My API for storage

Last Modified: 03/16/2019 20:33:44

Async / await

Last Modified: 03/05/2019 08:23:16

C# strings

Last Modified: 03/04/2019 09:46:15

Asynchronous method call

Last Modified: 02/20/2019 18:56:35

Primes

Last Modified: 02/20/2019 06:23:35

web

Create triangle for three sides

Last Modified: 02/18/2019 17:59:39

Password validator

Last Modified: 02/18/2019 11:06:58

Caesar Cipher

Last Modified: 02/18/2019 11:06:48

Matches FIFA 2018

Last Modified: 02/18/2019 11:06:33

Big factorial (1000!)

Last Modified: 02/18/2019 11:06:24

Pythagorean Triples v.2

Last Modified: 02/18/2019 11:05:44

Array Partitioning

Last Modified: 02/18/2019 11:05:30

Database Context Imitation

Last Modified: 02/18/2019 11:05:15

Explanation: loops faster than recursion

Last Modified: 02/18/2019 11:05:06

web

Create a color table.

Last Modified: 02/18/2019 11:04:52

Explanation: why this code prints "CA"

Last Modified: 02/18/2019 11:04:36

Lightweight password generator

Last Modified: 02/18/2019 11:04:25

More lightweight password generator

Last Modified: 02/18/2019 11:04:19

Password generator by character type

Last Modified: 02/18/2019 11:04:05

N-Queens Problem

Last Modified: 02/18/2019 11:03:42

Add two numbers without using +

Last Modified: 02/18/2019 11:03:11

Search for the optimal path

Last Modified: 02/18/2019 11:02:59

Delegates and lambda expressions

Last Modified: 02/18/2019 11:02:47

Semiprime numbers : check

Last Modified: 02/18/2019 11:02:27

cpp

The Golden Mountain

Last Modified: 02/18/2019 11:02:09

Deferred LINQ extension methods

Last Modified: 02/18/2019 11:01:50

Account

Last Modified: 02/18/2019 10:58:35

Scrabble

Last Modified: 02/18/2019 10:58:19

Minimal pairs product sum

Last Modified: 02/18/2019 10:58:09

Which collection is fastest?

Last Modified: 02/18/2019 10:57:58

Amount of banknotes

Last Modified: 02/18/2019 10:57:49

Determination of the day of the week

Last Modified: 02/18/2019 10:56:28

Phone number format

Last Modified: 02/18/2019 10:56:21

Decimal to Rational

Last Modified: 02/18/2019 10:56:04

Scrabble

Last Modified: 02/18/2019 10:55:50

LINQ: Counting words in text

Last Modified: 02/18/2019 10:55:40

Leyland numbers : check

Last Modified: 02/18/2019 10:55:28

Prime string: check (new ver.)

Last Modified: 02/18/2019 10:55:15

Abundant numbers: check

Last Modified: 02/18/2019 10:55:01

Happy numbers: check

Last Modified: 02/18/2019 10:54:49

String compression

Last Modified: 02/18/2019 10:54:05

Balanced Parentheses

Last Modified: 02/18/2019 10:53:47

Clock Hands

Last Modified: 02/18/2019 10:53:29

Counting words in text

Last Modified: 02/18/2019 10:53:13

Struct and static class

Last Modified: 02/18/2019 10:51:45

Ugly numbers: check

Last Modified: 02/18/2019 10:51:30

Grouping data in C#

Last Modified: 02/18/2019 10:51:23

Swap columns/rows in matrix

Last Modified: 02/18/2019 10:51:08

LINQ: Filtration

Last Modified: 02/18/2019 10:50:59

Black Box

Last Modified: 02/18/2019 10:50:35

Trimorphic numbers: check

Last Modified: 02/18/2019 10:50:16

Adam numbers: check

Last Modified: 02/18/2019 10:49:56

Perfect numbers: check

Last Modified: 02/18/2019 10:49:48

Twin prime numbers: check

Last Modified: 02/18/2019 10:49:33

Color: RGB to HEX converter

Last Modified: 02/18/2019 10:49:12

Validator IPv4 /using regex/

Last Modified: 02/18/2019 10:48:53

Validator IPv4 v.2

Last Modified: 02/18/2019 10:48:47

Mersenne Primes in range

Last Modified: 02/18/2019 10:48:19

International Morse Code

Last Modified: 02/18/2019 10:47:42

Anti-Lychrel number

Last Modified: 02/18/2019 10:47:30

Anti-Lychrel number

Last Modified: 02/18/2019 10:47:22

Howling Prime

Last Modified: 02/18/2019 10:47:13

Even or Odd

Last Modified: 02/18/2019 10:46:56

Even or Odd

Last Modified: 02/18/2019 10:46:49

LCM and HCF

Last Modified: 02/18/2019 10:46:15

String rotations [Recursion]

Last Modified: 02/18/2019 10:45:44

String rotations [LINQ]

Last Modified: 02/18/2019 10:45:38

Goldbach's conjecture

Last Modified: 02/18/2019 10:45:10

Goldbach's conjecture

Last Modified: 02/18/2019 10:44:58

Converting an object to JSON

Last Modified: 02/15/2019 13:34:14

🌎🌍🌏❤

Last Modified: 02/15/2019 13:32:43

web

Hymn of Love

Last Modified: 02/12/2019 23:55:03

Console loader

Last Modified: 02/12/2019 22:27:05

112

web

Loader...

Last Modified: 02/08/2019 20:27:59

Pythagorean Triples

Last Modified: 02/08/2019 17:31:09

web

Chain

Last Modified: 01/29/2019 20:46:13

web

Pattern

Last Modified: 01/29/2019 20:45:46

cpp

Explanation: Random numbers in C++

Last Modified: 01/27/2019 21:20:48

ASCII converter

Last Modified: 01/25/2019 23:10:45

Valid Binary String

Last Modified: 01/17/2019 15:42:55

Prime Factorization

Last Modified: 01/16/2019 09:23:49

Deficient number: check

Last Modified: 01/16/2019 09:18:03

Sort the string 2

Last Modified: 01/16/2019 09:15:15

Sort the string 1

Last Modified: 01/16/2019 09:13:28

Print char of string in a new line

Last Modified: 01/16/2019 09:09:48

Game: Lottery

Last Modified: 01/16/2019 06:53:07

Game: the toy

Last Modified: 01/16/2019 06:52:21

A simple WPF app

Last Modified: 01/16/2019 06:49:43

Merge two sequences

Last Modified: 01/10/2019 19:05:20

Using Unicode

Last Modified: 01/09/2019 22:46:10

web

Scary code

Last Modified: 12/29/2018 16:39:10

cpp

Pattern: chessboard

Last Modified: 12/29/2018 16:38:22

Binary search

Last Modified: 12/29/2018 16:37:37

java

Sum of the first 5 el. of the array

Last Modified: 12/29/2018 16:32:24

swift

Greeting

Last Modified: 12/29/2018 16:31:11

php

Pig Latin

Last Modified: 12/29/2018 16:28:38

web

Hive

Last Modified: 12/28/2018 09:45:36

web

Bee :)

Last Modified: 12/27/2018 17:20:20

web

Guess the word

Last Modified: 12/24/2018 07:58:16

Count of vowels

Last Modified: 12/19/2018 17:17:54

cpp

Array reference. C++

Last Modified: 12/13/2018 18:44:30

cpp

Print the Pattern 2

Last Modified: 12/13/2018 18:44:20

cpp

Jagged array in C++

Last Modified: 12/13/2018 18:43:38

cpp

Placement of the object in memory

Last Modified: 12/13/2018 18:42:36

cpp

OOP. The Diamond Problem.

Last Modified: 12/13/2018 18:42:26

cpp

Pattern: Z

Last Modified: 12/13/2018 18:42:07

cpp

Pattern: a hourglass

Last Modified: 12/13/2018 18:41:59

cpp

Pattern: XYZ

Last Modified: 12/13/2018 18:41:47

cpp

Flag

Last Modified: 12/13/2018 18:40:58

Tuple

Last Modified: 12/10/2018 07:39:34

php

Rotate the matrix

Last Modified: 12/01/2018 22:01:57

php

Anadrome: check

Last Modified: 11/29/2018 15:42:07

Anadrome: check

Last Modified: 11/29/2018 13:55:37

Sort the string

Last Modified: 11/24/2018 02:21:10

Print 100 times without loops

Last Modified: 11/24/2018 02:20:39

First recurring character

Last Modified: 11/24/2018 02:13:27

Last Modified: 11/23/2018 18:16:00

php

Observer - Design Pattern

Last Modified: 11/20/2018 16:15:58

php

Strategy - Design Pattern

Last Modified: 11/19/2018 12:16:58

Palindrone numbers: check

Last Modified: 11/14/2018 18:25:53

Sieve of Eratosthenes

Last Modified: 11/14/2018 18:24:59

Pattern: ABC...

Last Modified: 11/14/2018 18:21:40

Sort the string

Last Modified: 11/14/2018 18:17:36

New in C for me

Last Modified: 11/14/2018 18:16:15

Find pairs with the number of iterations

Last Modified: 11/14/2018 18:15:43

20!

Last Modified: 11/14/2018 18:13:07

Print 100 times without loops

Last Modified: 11/14/2018 18:03:26

Tower of Hanoi. Classic

Last Modified: 11/08/2018 09:52:02

Gapful numbers: check

Last Modified: 11/07/2018 16:37:43

php

Merge two sequences

Last Modified: 11/06/2018 20:09:42

Sorted array: check

Last Modified: 11/03/2018 21:07:54

Remove numbers from the word

Last Modified: 10/29/2018 14:33:03

Prime string: check

Last Modified: 10/29/2018 14:12:14

Last Modified: 10/23/2018 04:48:35

Neighbor numbers

Last Modified: 10/23/2018 04:44:52

Spy numbers: check

Last Modified: 10/23/2018 04:41:16

Pattern: a diamond

Last Modified: 10/19/2018 05:09:58

Remove a space in the string

Last Modified: 10/17/2018 15:41:33

Remove special characters

Last Modified: 10/14/2018 12:31:44

The smallest

Last Modified: 10/14/2018 10:48:19

Palindrome: check

Last Modified: 10/14/2018 10:23:37

Count Of Units - v3

Last Modified: 09/30/2018 14:20:06

Count Of Units - v2

Last Modified: 09/30/2018 14:18:34

Count Of Units - v1

Last Modified: 09/30/2018 14:16:27

Pattern: triangles 1

Last Modified: 09/28/2018 06:50:27

Converting Data to XML

Last Modified: 09/23/2018 19:33:40

void end return

Last Modified: 09/20/2018 11:43:21

Snail

Last Modified: 09/19/2018 07:11:01

Rational effect of logical operators

Last Modified: 09/18/2018 10:33:31

Fraction reduction

Last Modified: 09/16/2018 12:17:45

New in C#: Local function

Last Modified: 09/16/2018 12:07:27

JSON string comparator

Last Modified: 09/15/2018 15:07:46

java

Print 100 times without loops

Last Modified: 09/12/2018 15:57:06

Dial [Another example is recursion]

Last Modified: 09/04/2018 18:06:55

Mersenne Prime

Last Modified: 08/30/2018 05:52:46

My Certificates

Java Tutorial

Issued: 15 January, 2019

C# Tutorial

Issued: 11 January, 2019

C Tutorial

Issued: 11 January, 2019

JavaScript Tutorial

Issued: 29 December, 2018

PHP Tutorial

Issued: 29 December, 2018

jQuery Tutorial

Issued: 14 September, 2018

CSS Fundamentals

Issued: 27 July, 2018

HTML Fundamentals

Issued: 18 July, 2018

SQL Fundamentals

Issued: 20 March, 2018

C++ Tutorial

Issued: 16 March, 2018

Achievements

Course Master

Complete 10 courses

Comment Master

Leave 5 comments in a lesson/quiz with at least 5 upvotes each

Code Ninja

Post 50 codes with at least 5 upvotes each

Respect!

Complete 500 challenges using one weapon

Practice Makes Perfect

Win 200 challenges using one weapon

Unstoppable

Win 100 challenges using one weapon

Respected Citizen

Reply to a comment in a lesson/quiz and get 5 upvotes