23
andreylvov
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Last seen seconds ago
Member for 1 year, 4 months, 11 days
Difficulty Easy
Missions (287) / Solutions
 Strings and Integers
The Most Wanted Letter
8
Digits Multiplication
8
Three Words
5
Fizz Buzz
5
Bird Language
8
Cut Sentence
8
First Word
8
Correct Sentence
5
Conversion into CamelCase
8
Conversion from CamelCase
8
Middle Characters
8
Multiply (Intro)
5
Between Markers (simplified)
5
First Word (simplified)
5
End Zeros
5
Number Length
5
Backward String
5
All Upper I
5
Beginning Zeros
8
Max Digit
5
Sum Numbers
5
Goes Right After
8
Is Even
5
Excel Column Number
8
Goes Right After (simplified)
6
Just Fizz!
8
Rectangle Perimeter
3
The Longest Word
6
Count Vowels
6
Convert To Title Case
9
Replace All Occurrences
9
Longest Substring of Unique Characters
12
Number With Exclamation
6
Count Substring Occurrences
9
Longest Common Prefix
9
Convert Date
9
Fuzzy String Matching
12
All Permutations
9
Find Remainder
6
Integer Sign Determination
3
Sum of Integers
9
Reverse Integer
9
Armstrong Number Checking
9
Maximum Among Three
6
Leap Year Checking
9
Quadratic Equation Roots
9
Count Divisibles in Range (simplified)
6
Perfect Number Checking
9
Variable: Declaration and Value Setting
1
Variables with Expression Values
2
Empty Function
2
Take and Return Argument
2
 List but not the least
Non-unique Elements
8
Median
8
Even the Last
5
Absolute Sorting
5
Right to Left
5
Index Power
5
Easy Unpack
5
The Most Frequent
5
All the Same
15
Follow Instructions
8
Frequency Sorting
8
Ascending List
8
Zigzag Array
8
Reverse Every Ascending
8
Replace First
5
Compress List
8
Remove All Before
5
Remove All After
5
Majority
8
Chunk
8
Sort Except Zero
15
Backward Each Word
8
Words Order
8
Sort by Extension
15
Non Empty Lines
5
Stock Profit
5
Changing direction
15
Missing Number
15
Duplicate Zeros
8
 Look up in the Dict()
Golden Pyramid
8
The Flat Dictionary
20
Pawn Brotherhood
15
What Is Wrong With This Family?
20
Bigger Price
8
Best Stock
8
Popular Words
8
The Cheapest Flight
8
YAML. Simple Dict
15
YAML. More Types
20
Count Digits
5
Aggregate by Operation
12
 Strings Theory
Speech Module
8
House Password
8
Friendly Number
8
Common Words
8
Pangram
8
Currency Style
8
Stressful Subject
8
Long Repeat
8
Double Substring
8
Second Index
8
Between Markers
8
The Nearest Square Number
8
Morse Encoder
8
Morse Decoder
8
Sun Angle
15
Caps Lock
8
Surjection Strings
15
Remove Brackets
15
Text Formatting
8
All Upper II
5
Acceptable Password I
5
Acceptable Password II
8
Acceptable Password III
8
Acceptable Password IV
8
Acceptable Password V
8
Acceptable Password VI
8
Sum of Digits
9
One Switch Strings
9
Adjacent Letters
15
Long Pressed
12
Is String a Number?
15
Is String a Number? (Part II)
15
Fibonacci Poem
15
Calculator-I
15
Huffman Encode
15
Reveal the Number
9
Working Hours Calculator
15
Count Morse
12
The Hollow Diamond
12
Revorse the vewels
9
Champernowne Word
12
Matrix-2-String
9
String-2-Matrix
9
 List, list and list again
Determine the Order
30
Xs and Os Referee
12
Flatten a List
12
Color Map
20
Most Efficient Cutting
8
The Highest Building
8
Flatten a List (generator version)
12
Median of Three
8
Sort Array by Element Frequency
8
Split Pairs
8
Split List
15
Replace Last
5
Sum by Type
8
Sort Sorted Groups
15
When "k" is Enough!
15
Replace with Biggest
9
List Beautify
12
Beat The Previous
9
Colorful Disks
6
 Different kind of sets
The End of Other
5
Berserk Rook
20
Merge Intervals
9
Create Intervals
8
Seven Segment
15
Create Intervals (iterator version)
9
Create Intervals (generator version)
9
Merge Intervals (generator version)
9
Expand Intervals
15
Square Board
8
Nearest Value
8
Power Plants
15
Shorter Set
5
 Mine
Stair Steps
8
Multiplication Table
8
Parse Array
30
Simple Areas
8
Super Root
8
Reverse Roman Numerals
15
Unix Match. Part 1
30
Unix Match. Part 2
40
Common Tail
9
Interesting, intersecting
12
Latest ISO datetime
9
Checking Perfect Power
12
 Ice Base
Radiation Search
15
Skew-symmetric Matrix
5
Transposed Matrix
15
Counting Tiles
8
Disposable Teleports
15
Calculate Islands
15
Pearls in the Box
15
The Hidden Word
20
Feed Pigeons
8
The Most Numbers
8
Weak Point
5
The Greatest Common Divisor
8
Moria Doors
15
Caesar Cipher (encryptor)
8
Similar Triangles
30
e+pi
12
Count Divisibles in Range
6
Count And Say
9
 The Game is Worth it!
Digits Doublets
15
Unfair Dice
20
Rolling 🎲!
12
 GitHub
Roman Numerals
15
Numbers Factory
8
Ghosts Age
8
Binary Count
8
Number Base
15
Min and Max
8
Monkey Typing
8
I Love Python!
5
Secret Message
15
Moore Neighbourhood
8
 Dropbox
How Much Gold
15
Saw the Stick
8
Humpty Dumpty Form
15
Count Chains
15
 Everything is Object
Every Person is Unique
15
3 Chefs
15
Geometry Figures
15
Capital City
15
Microwave Ovens
15
Voice TV Control
15
Hacker Language
15
Dialogues
15
Party Invitations
15
Army Units
15
The Warriors
15
Army Battles
15
The Defenders
15
The Vampires
8
The Lancers
20
The Healers
20
Straight Fight
20
The Weapons
15
The Warlords
30
OOP 1: First Look at Class and Object
5
OOP 2: Class Attributes
5
OOP 3: Initializing
5
OOP 4: Adding Methods
5
OOP 5: Parent - Child
5
OOP 6: Overriding Methods
5
 Master of the Time Stone
Weekend Counter
8
Days Between
5
The Most Frequent Weekdays
8
Date and Time Converter
8
When is Friday?
8
Time Converter (24h to 12h)
15
Time Converter (12h to 24h)
15
The First Working Day
5
Next Birthday
15
Lightbulb Intro
15
Lightbulb Start Watching
15
Lightbulb End Watching
15
 HubSpot
Building Visibility
8
Repeating Decimals
8
Oil Pie
8
Parity Bit Generator
8
 Blizzard
The Rows of Cakes
15
Simple Hashlib
5
Word Pattern
5
Shooting Range
8
Vigenere Cipher
8
String Conversion
15
Identify Block
20
Worth of Words
5
Fast Train
8
Flood Area
15
 Rock
URL Normalization
20
Safe Coasts
20
Rectangles Union
8
Find Quotes
8
Evenly Spaced Trees
8
Sum Consecutives
8
Halloween Monsters
15
Sort by Removing
15
Mountain Scape
15
Greedy Number
20
 Shelter
Home Coming
15
Park Benches
15
Atbash Cipher
5
Scytale Encryption
8
 Codeship
Cookies
8
The Fastest Horse
8
Ugly Numbers
20
 Hermit
Ryerson Letter Grade
5
Write Quadratic Equation
12
 Watchtower
Useless Flights
20
Rotating Grille Cipher
15
 Not On Map
Most Wanted Letter
0
Length of the String
5