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Initiation
First
Acceptable Password I
6
4
0
First
Replace First
36
1
0
First
The Most Frequent
38
8
0
First
Beginning Zeros
47
1
0
First
Multiply (Intro)
190
5
1
First
Is Even
250
0
0
First
Backward String
297
0
0
First
All Upper I
310
0
0
First
Count Digits
330
0
0
First
Number Length
378
0
0
First
Max Digit
401
0
0
First
Split Pairs
419
0
0
First
Remove All Before
432
0
0
First
End Zeros
475
0
0
First
Sum Numbers
492
0
0
First
Easy Unpack
739
0
0
First
First Word (simplified)
807
0
0
First
All the Same
822
1
1
First
Between Markers (simplified)
823
0
1
First
Correct Sentence
852
0
1
Home
First
First Word
1
389
95
First
Sun Angle
2
98
5
First
Sort Array by Element Frequency
5
37
1
First
Changing direction
7
0
0
First
Pawn Brotherhood
16
13
0
First
Days Between
18
13
0
First
Right to Left
23
13
0
First
Even the Last
24
13
0
First
Three Words
24
13
0
First
Non-unique Elements
29
13
0
First
Date and Time Converter
39
0
0
First
Missing Number
48
0
0
First
Duplicate Zeros
56
0
0
First
Morse Decoder
96
5
0
First
Bigger Price
251
4
0
First
Split List
274
0
0
First
Backward Each Word
316
0
0
First
Between Markers
340
2
0
First
Popular Words
530
1
0
First
Second Index
876
0
0
Electronic Station
First
Can You Pass?
1
15
0
First
Inside Block
2
13
1
First
Find Sequence
3
14
0
First
Mathematically Lucky Tickets
5
5
0
First
Acceptable Password VI
12
3
1
First
Verify Anagrams
14
13
0
First
Brackets
15
13
0
First
Acceptable Password IV
15
1
0
First
Unix Match. Part 2
17
4
1
First
Boolean Algebra
19
13
1
First
Digits Multiplication
25
13
0
First
Remove Brackets
28
4
1
First
Unix Match. Part 1
48
4
2
First
Acceptable Password V
119
0
0
First
Similar Triangles
122
0
0
First
All Upper II
136
0
0
First
Acceptable Password III
147
0
0
First
Acceptable Password II
149
0
0
First
Sort by Extension
162
0
0
First
Words Order
203
0
0
First
Ascending List
235
1
1
First
Surjection Strings
250
0
0
Scientific Expedition
First
Remove Accents
1
9
0
First
The Hidden Word
1
9
0
First
Call to Home
4
4
0
First
Nonogram Encode
4
4
0
First
Convert and Aggregate
5
11
1
First
Striped Words
6
13
0
First
Cipher Map
6
9
0
First
Letter Queue
7
13
0
First
Conversion from CamelCase
8
19
0
First
Morse Clock
8
9
0
First
Bird Language
10
9
0
First
Pangram
15
13
0
First
I Love Python!
19
14
0
First
Common Words
19
13
0
First
Absolute Sorting
19
13
0
First
Secret Message
21
12
0
First
The Most Wanted Letter
24
13
0
First
Latest ISO datetime
35
0
0
First
Count Substring Occurrences
35
0
0
First
YAML. More Types
49
0
0
First
Replace All Occurrences
50
0
0
First
Count Vowels
54
0
0
First
Convert To Title Case
61
0
0
Second
Morse Clock
63
6
0
First
YAML. Simple Dict
67
0
0
First
Sum by Type
102
0
0
First
Goes Right After
128
0
0
First
Caps Lock
173
0
0
First
Follow Instructions
296
0
0
First
Conversion into CamelCase
317
0
0
First
Time Converter (24h to 12h)
487
0
1
Second
Absolute Sorting
3065
0
0
O'Reilly
First
Cipher Crossword
2
5
0
First
Integer Palindrome
2
0
0
First
Loading Cargo
3
20
1
First
Determine the Order
3
10
0
First
Majority
9
14
2
First
Count Inversions
13
13
0
First
Lightbulb Operating
15
0
0
First
Index Power
17
13
0
First
The Flat Dictionary
17
0
0
First
Flatten a List
18
4
0
First
Multiple Lightbulbs
18
0
0
First
Xs and Os Referee
22
13
0
First
Sum of Digits
22
3
0
First
Lightbulb More
22
0
0
First
Median
26
13
0
First
Time Converter (12h to 24h)
28
7
1
First
Lightbulb End Watching
30
0
0
First
Lightbulb Start Watching
41
0
0
First
The Final Stone
51
0
0
First
Lightbulb Intro
54
0
0
First
Chunk
63
0
0
First
Reverse Every Ascending
99
1
0
First
Compress List
107
0
0
First
How Deep
126
0
0
First
Replace Last
137
0
0
First
Median of Three
162
0
0
First
Remove All After
225
0
0
First
Frequency Sorting
232
0
0
First
Sort Except Zero
517
0
0
Incinerator
First
The Defenders
1
102
7
First
The Vampires
1
98
1
First
The Lancers
1
46
5
First
Straight Fight
1
29
0
First
The Healers
3
15
1
First
Microwave Ovens
3
13
0
First
The Weapons
4
6
0
First
Dialogues
7
12
1
First
Friends
9
14
0
First
Building Base
11
13
1
First
Army Battles
12
13
2
First
Text Editor
13
6
0
First
Every Person is Unique
21
5
1
First
3 Chefs
34
4
0
First
Capital City
36
2
0
First
Geometry Figures
40
1
0
First
Hacker Language
41
0
0
First
Voice TV Control
43
2
1
First
Party Invitations
46
1
0
First
Army Units
47
1
0
First
The Warlords
47
0
0
Second
Multicolored Lamp
77
4
0
First
Multicolored Lamp
224
0
0
First
The Warriors
238
2
1
Mine
First
Determinant
1
13
0
First
Color Map
1
10
0
First
Adjacent Letters
1
0
0
First
Fibonacci Poem
2
12
3
First
Domino Chain
2
0
0
First
Aggregate by Operation
2
0
0
First
The Greatest Common Divisor
3
14
2
First
The Einstein Problem-Lite
3
10
0
First
Fast Train
3
10
0
First
Achilles and the Tortoise
3
9
0
First
Currency Style
3
5
2
First
Disposable Teleports
4
10
0
First
Toothpicks
8
3
0
First
Moore Neighbourhood
11
13
0
First
Ulam-Warburton Automaton Hex
12
0
0
First
Ulam–Warburton Automaton
13
2
0
First
Can Balance
17
6
0
First
Bigger Together
17
5
1
First
Binary Count
18
13
0
First
Find Remainder
19
2
1
First
Matrix "Hatching"
22
0
0
First
Fizz Buzz
23
13
0
First
Find Enemy
24
1
0
First
Count Divisibles in Range
26
0
0
First
Rectangle Perimeter
27
2
0
First
Chess Knight
29
2
0
First
Replace with Biggest
35
0
0
First
Cut Sentence
39
5
1
First
Number With Exclamation
39
0
0
First
Integer Sign Determination
41
0
0
First
Chemical Analysis
42
0
0
First
Long Pressed
43
0
0
First
Switch Keys to Values
49
0
0
First
Caesar Cipher (decryptor)
51
1
0
First
Escape
54
0
0
First
Caesar Cipher (encryptor)
93
4
1
First
What Is Wrong With This Family?
109
0
0
First
Best Stock
437
1
0
Ice Base
First
Largest Rectangle in a Histogram
1
82
9
First
Oil Pie
1
14
0
First
Clock Angle
3
9
0
First
Making Change
3
3
0
First
Write Quadratic Equation
4
0
0
First
Counting Tiles
5
14
0
First
Interesting, intersecting
5
4
0
First
Identify Block
6
0
0
First
Reveal the Number
6
0
0
First
How to Find Friends
7
9
0
First
Feed Pigeons
9
9
0
First
Roman Numerals
10
15
2
First
When "k" is Enough!
19
2
0
First
Quadratic Equation Roots
23
0
0
First
The Most Numbers
24
13
0
First
Monkey Typing
29
13
0
First
Not in Order
30
0
0
First
Leap Year Checking
32
0
0
First
Move Zeros
39
0
0
First
Is String a Number? (Part II)
41
0
0
First
Count Chains
41
0
0
First
Is String a Number?
53
0
0
First
Correct Capital
63
0
1
First
Reverse Roman Numerals
73
3
0
First
Find Quotes
109
3
0
First
Morse Encoder
127
2
0
First
Long Repeat
279
2
0
Alice In Wonderland
First
Digits Doublets
1
10
0
First
IP Network: Route Summarization
1
10
0
First
Multiplication Table
3
9
0
First
Swap Nodes
4
16
0
First
Flood Area
6
7
0
First
Long Non Repeat
7
20
0
First
Transposed Matrix
8
14
0
First
The Shortest Knight's Path
10
5
0
First
When is Friday?
13
14
1
First
YAML. Complex Structure
14
0
0
First
YAML. List and Comments
24
0
0
First
Middle Characters
54
3
0
First
Zigzag Array
55
2
1
First
Tree Walker
63
0
1
First
The Fastest Horse
128
0
0
GitHub
First
Xs and Os Champion
1
10
0
Bruteforce
The Most Frequent Weekdays
1
5
0
First
Shooting Range
2
14
0
First
Area of a Convex Polygon
2
10
0
First
Broken Clock
2
5
1
First
Merge Intervals
3
27
0
First
Cookies
4
15
1
First
Painting Wall
5
5
0
First
Paper Dice
5
2
0
First
Open Labyrinth
6
10
0
First
Power Plants
6
0
0
First
Solution for Anything
8
13
0
First
Long Repeat Inside
8
11
1
First
Searchlights
11
0
0
First
Power Supply
13
3
0
First
The End of Other
14
13
0
First
Barcode Reader
14
0
0
First
The Cheapest Flight
17
5
1
Second
The Most Frequent Weekdays
17
0
0
First
Evenly Spaced Trees
25
0
0
First
Simplify Unix Path
31
0
4
Second
Simplify Unix Path
32
0
1
First
Create Intervals
96
1
0
First
The Highest Building
102
0
0
First
Expand Intervals
124
0
0
Dropbox
First
Place Queens
1
17
0
First
Three Points Circle
1
13
0
First
The Longest Palindromic
1
10
0
First
Humpty Dumpty Form
2
9
0
First
Hubspot Amulet
2
5
0
First
Huffman Encode
2
5
0
First
Worth of Words
3
33
2
First
Numbers Factory
3
15
0
First
Friendly Number
3
10
0
First
Simple Hashlib
3
9
0
First
Common Tail
5
9
1
Second
Hubspot Amulet
6
3
0
First
Rotating Grille Cipher
7
3
1
First
Nonogram Row
8
0
0
First
The Best Number Ever
10
15
0
First
Speech Module
13
13
0
First
Reverse Integer
18
4
0
First
Count Divisibles in Range (simplified)
23
0
0
First
Sum of Integers
32
0
0
First
Scytale Encryption
34
0
0
First
Atbash Cipher
44
0
0
First
The Longest Word
49
0
0
First
On the same path
57
0
0
First
Text Formatting
87
0
1
PyCon TW
First
Calculate Islands
1
10
0
First
How Much Gold
2
10
0
First
Network Attack
2
10
0
First
Building Visibility
2
5
0
First
Robot Sort
3
9
0
First
Simple Areas
4
14
0
First
Golden Pyramid
6
10
0
First
Unfair Districts
6
2
0
First
Ryerson Letter Grade
7
11
0
First
Fused Cubes
7
0
0
First
Digit Stack
9
13
0
First
Dark Labyrinth
12
0
0
First
Double Substring
26
5
0
First
House Password
30
15
0
First
Sum Consecutives
33
0
0
First
Express Delivery
84
0
0
Storage
First
Square Spiral
1
15
0
First
The Rows of Cakes
1
14
1
First
Moria Doors
1
14
0
Second
Exec Quine
1
10
0
First
Playfair Cipher
1
10
0
First
English to Braille Translator
1
10
0
First
Digging a Canal
2
10
0
First
Restricted Prime
2
10
0
First
Word Pattern
2
9
0
First
Saw the Stick
2
9
0
First
Earth Distances
2
9
0
First
Group Equal consecutive
8
19
2
First
Weak Point
8
13
0
First
Exec Quine
8
5
0
First
Forgetful Prisoner
13
0
0
First
Skew-symmetric Matrix
15
4
0
First
Battle Dice
16
0
0
First
Hexagon Spiral
19
0
0
First
Convert Date
26
0
0
First
Mind Switcher
34
0
0
First
Haunted House
68
0
0
HubSpot
First
Auto Painting
1
10
0
First
Team Play
1
0
0
First
Repeating Decimals
2
4
0
First
City's Happiness
3
10
0
First
Next Birthday
4
0
0
First
Square Board
5
0
0
First
The Hamming Distance
8
15
0
First
Univocalic davasaan
10
0
0
First
Supply Stations
11
0
0
First
Restricted Sum
14
13
0
First
Supply Line
14
3
1
First
Number Base
15
13
0
First
Non Empty Lines
17
0
0
First
Node Disconnected Users
20
4
0
First
Expected Dice
23
0
0
First
Triangular Islands
28
0
0
First
Workout
32
0
0
First
Weekly Calendar
33
1
0
First
New Cities
40
1
0
Second
New Cities
79
0
0
Blizzard
First
Spaceship Landing Strip
1
15
1
First
Sudoku Solver
1
10
0
First
Unlucky Days
1
10
0
First
Safe Coasts
1
10
0
Second
Unlucky Days
2
10
0
First
Radiation Search
2
10
0
First
Stair Steps
3
15
0
First
Connect Stars
4
5
1
First
Palindromic Palindrome
6
5
0
First
The Angles of a Triangle
7
13
0
First
Weekend Counter
10
9
1
First
Rectangles Union
14
6
0
First
Min and Max
19
5
0
First
Reversed Permutation Index
28
1
1
First
Useless Flights
29
0
0
First
The First Working Day
37
2
1
First
Mountain Scape
37
0
0
First
String Conversion
39
1
0
First
Permutation Index
74
0
1
First
Stressful Subject
111
3
0
Rock
First
Berserk Rook
1
15
0
First
Parity Bit Generator
1
14
4
First
Count Comprehensions
1
0
0
First
CheckSum
2
10
0
First
Super Root
2
9
0
First
Most Efficient Cutting
3
11
0
First
Life Counter
3
5
0
First
Water Jars
4
5
0
First
Family Dinner
4
0
0
First
Black Holes
5
4
0
First
Web Log Sessions
6
3
1
First
Family Gifts
6
0
0
First
Home Coming
6
0
0
First
Park Benches
6
0
0
First
Fibonacci Spiral's End
8
5
2
First
River Crossing
9
0
0
First
Chicken Hunt
10
0
0
First
Sort by Removing
12
0
0
First
Crossword Solver
17
0
0
First
Hexagonal Islands
28
0
0
First
Greedy Number
29
0
1
Shelter
First
ADFGVX Cipher
1
10
0
First
One line Drawing
1
5
0
First
AMSCO Cipher
2
5
0
First
The Lantern Festival
2
5
0
First
Pattern Recognition
3
9
0
First
Climbing Route
7
0
0
First
Ghosts Age
10
13
0
First
Fortress Cannons
11
0
0
Second
Completely Empty
17
7
0
First
Landing Site
29
0
0
First
Delivery Drone
33
0
0
First
Completely Empty
35
3
0
First
The Nearest Square Number
47
2
0
First
Halloween Monsters
47
0
0
First
Seven Segment
117
0
0
Codeship
First
Bats Bunker
1
10
1
First
Texas Referee
1
10
0
First
Minesweeper
2
10
0
First
Magic Domino
2
3
0
First
Pearls in the Box
4
5
0
First
Behind 2048
4
5
0
First
Ugly Numbers
4
0
0
First
The Square Chest
5
9
1
First
8 Puzzle
5
5
0
First
Magic with 5 cards
5
0
0
First
The Territory of Go
11
1
0
First
Eaten Go Stones
16
0
0
bruteforce
The 88th Puzzle
20
0
0
First
Unfair Dice
30
0
0
First
Snake Lite
61
0
0
First
Probably Dice
66
0
0
Hermit
First
Network Loops
1
15
1
First
Colder-Warmer
1
5
0
First
Mono Captcha
1
5
0
First
Break Rings
2
10
0
First
The Good Radix
2
9
0
First
Ore In The Desert
3
5
1
First
Keywords Finder
3
5
0
First
Anagrams By Stacks
3
5
0
First
Count Consecutive Summers
3
5
0
First
Strawberry Fields
3
0
0
Second
Shorter Set
5
0
0
First
Stacking Cubes
10
2
0
First
Fractions Addition
15
3
0
First
Birthday Party
27
0
0
First
Backspace Apply
29
0
0
First
Simplification
36
0
0
First
Excel Column Number
39
0
0
First
Reverse Engineer
40
0
0
Second
Reverse Engineer
41
0
0
First
Shorter Set
46
0
0
First
Unique Email Addresses
46
0
0
First
Stock Profit
49
0
0
Watchtower
First
Bag of Santa Claus
1
15
0
First
Bacteria Colonies
1
8
0
First
DNA Common Sequence
1
5
0
First
Convex Hull
2
10
0
First
Numbered Triangles
2
10
0
First
Vigenere Cipher
2
9
0
Second
Convex Hull
3
10
0
First
Magic Square
4
5
0
First
Ethernet Ring Dimensioning
4
0
0
First
Rotate Hole
5
5
0
First
Number Guess
5
5
0
First
Wall Keeper
5
0
0
First
Funny Addition
7
14
0
First
Compare Functions
8
0
0
First
Broken Window
18
0
0
First
Boundary Blocks
20
0
0
First
Bulls and Cows
45
0
0
Escher
First
Ground for the House
3
33
3
First
Wild Dogs
5
11
1
First
Safe Code
5
11
0
First
Treasures
12
5
0
First
Graphical Key
13
1
0
First
The Stones
14
7
0
First
The Tower
26
0
0
First
Hypercube
28
0
0
First
Card Game
31
1
0
First
The Buttons
34
0
0
First
The Secret Room
35
2
1
First
Keys and Locks
37
1
1
First
The Ship Teams
68
4
1
First
Compass, Map and Spyglass
91
1
1
First
The Stone Wall
133
0
1
Not On Map
First
Length of the String
32
0
1