36
Colin McNicholl
Last seen 6 months ago
Member for 6 years, 9 months, 10 days
Difficulty Normal
Initiation
Second
Easy Unpack
3
110
7
First
End Zeros
45
0
0
First
Number Length
50
0
0
First
Backward String
53
0
0
First
Is Even
130
0
0
First
The Most Frequent
164
3
0
First
Split Pairs
260
2
0
First
Nearest Value
465
0
0
First
Easy Unpack
513
1
0
First
Acceptable Password I
513
0
0
Second
All Upper I
544
0
0
First
Beginning Zeros
596
0
0
First
Count Digits
601
0
0
First
Replace First
657
0
0
First
Max Digit
678
0
0
First
Remove All Before
685
0
0
First
Sum Numbers
731
0
0
First
First Word (simplified)
795
0
2
First
Between Markers (simplified)
810
0
0
All_the_Same
All the Same
821
1
0
Home
First
Duplicate Zeros
5
10
1
First
Changing direction
5
0
0
Third: with suppress and text.index instead of text.find
Second Index
7
26
9
Second
Bigger Price
27
11
2
First
Backward Each Word
33
0
0
First
Missing Number
52
0
0
First
Bigger Price
55
0
0
Second
Second Index
64
8
0
Second
Even the Last
104
25
2
Morse decoder
Morse Decoder
127
4
0
Second
Days Between
132
11
3
First
Sort Array by Element Frequency
266
3
0
Second
Between Markers
285
3
0
Second
Popular Words
408
2
0
Date and time convertor
Date and Time Converter
417
0
0
First
Split List
482
0
0
Second Index
Second Index
590
1
0
Between Markers
Between Markers
721
0
0
Popular Words
Popular Words
773
0
0
Sun Angle
Sun Angle
804
0
0
Second
Pawn Brotherhood
1175
1
0
First
Right to Left
1210
1
0
First
Pawn Brotherhood
2781
0
0
First
Three Words
3768
0
0
First
Even the Last
4596
0
0
Electronic Station
First
Cipher Dict
6
0
0
Second
Surjection Strings
9
19
0
First
Remove Brackets
32
2
0
Second
Boolean Algebra
33
15
2
First
Inside Block
37
1
4
First
Unix Match. Part 2
44
2
2
First
Words Order
48
5
3
Second
Find Sequence
77
5
0
Second
Inside Block
100
0
0
Unix Match. Part 1
Unix Match. Part 1
117
1
0
Second
Verify Anagrams
146
8
2
Second
Brackets
170
6
0
First
Similar Triangles
181
0
0
Second
Digits Multiplication
206
7
0
First
Surjection Strings
235
0
2
First
Sort by Extension
268
0
0
First
Acceptable Password III
272
0
0
First
All Upper II
281
0
0
Second - 'First' incorrect for assert is_ascending([1, 6, 6]) == False
Ascending List
328
0
0
First
Acceptable Password II
333
0
0
First
Find Sequence
600
0
0
First
Digits Multiplication
607
2
0
First
Brackets
1534
0
2
First
Verify Anagrams
1564
0
0
Scientific Expedition
First
Convert and Aggregate
2
0
0
First
Latest ISO datetime
3
0
0
First
YAML. More Types
8
11
1
Second
The Hidden Word
23
8
0
First
Beat The Previous
29
0
0
Third
The Hidden Word
31
6
0
Second
The Most Wanted Letter
39
14
4
Conversion into CamelCase
Conversion into CamelCase
73
5
0
First
YAML. Simple Dict
81
1
2
First
Remove Accents
105
0
0
First
Caps Lock
136
1
1
First
Sum by Type
277
0
0
Second
Cipher Map
290
1
2
Folllow Instructions
Follow Instructions
300
0
0
The Hiden Word
The Hidden Word
311
0
2
Second
Absolute Sorting
334
5
2
First
Common Words
341
3
0
colin_conversion_from_camel_case
Conversion from CamelCase
372
0
0
First
Call to Home
440
0
0
Time Converter (24h to 12h)
Time Converter (24h to 12h)
494
0
0
First
Bird Language
544
1
0
First
Pangram
603
1
0
First
Secret Message
696
2
0
Second
Pangram
1306
0
0
First
Absolute Sorting
3408
0
0
O'Reilly
First
The Final Stone
4
0
0
First
Lightbulb End Watching
4
0
0
First
Multiple Lightbulbs
4
0
0
First
Lightbulb Start Watching
5
0
0
First
Lightbulb Operating
7
5
0
First
Lightbulb Intro
8
0
0
First
Exploring Wythoff Array
9
0
0
First
Integer Palindrome
10
5
2
First
Sum of Digits
12
6
4
First
Knapsack Problem
16
0
0
First
Flatten a List (generator version)
27
0
0
First
Flatten a List (iterator version)
35
0
0
First
Count Inversions
37
7
0
First
How Deep
51
3
0
Second
Count Inversions
54
5
0
First
Chunk
123
0
0
colin_the_flat_dictionary
The Flat Dictionary
130
0
3
First
Reverse Every Ascending
137
0
4
Second uses extend instead of flat_list helper function
Reverse Every Ascending
139
0
2
Third
Reverse Every Ascending
141
0
0
Second
Index Power
142
14
0
First
Median of Three
160
0
0
First
Compress List
192
0
0
First
Majority
202
2
0
Time Converter (12h to 24h)
Time Converter (12h to 24h)
227
0
2
First
Sort Except Zero
231
1
1
colin_Frequency_Sorting
Frequency Sorting
243
0
0
Second
Xs and Os Referee
289
4
0
First
Remove All After
308
0
0
First
Flatten a List
318
3
4
First
Replace Last
321
0
0
Second
Median
883
2
2
First
Xs and Os Referee
1566
0
0
First
Index Power
4638
0
0
Incinerator
colin_dialogues
Dialogues
4
0
0
very_wet_not_DRY_fight
The Vampires
4
0
0
Second
Voice TV Control
6
9
2
colin_army_units
Army Units
6
0
0
First_colin_straight_fight
Straight Fight
7
4
3
colin_multicolored_lamp
Multicolored Lamp
14
13
2
colin_hacker_language
Hacker Language
15
4
0
First
Voice TV Control
21
4
2
First_colin_the_warlords
The Warlords
27
1
4
colin_text_editor
Text Editor
29
3
2
First_colin_the_healers
The Healers
29
3
0
colin_microwave_ovens
Microwave Ovens
32
2
0
colin_the_lancers
The Lancers
35
1
3
First_colin_the_weapons
The Weapons
36
0
5
colin_Capital_City
Capital City
46
1
0
colin_geometry_figures
Geometry Figures
52
0
0
Every Person is Unique
Every Person is Unique
63
1
2
Second
Friends
75
3
0
colin_party_invitations
Party Invitations
77
0
0
Second_thanks_Phil_15_and_a_hayashi
The Vampires
113
0
1
colin_3_chefs
3 Chefs
117
0
2
colin_the_defenders
The Defenders
135
0
3
colin_army_battles
Army Battles
144
1
0
colin_the_warriors
The Warriors
255
2
2
First
Friends
637
0
0
First
Building Base
1235
0
0
Mine
First
Aggregate by Operation
1
0
0
First
Fibonacci Poem
2
0
0
First
Matrix "Hatching"
2
0
0
First
Determinant
6
10
0
First
Cut Sentence
6
5
0
First
Fast Train
7
5
0
First
Domino Chain
9
7
2
Best Stock
Best Stock
10
4
2
First
Checking Perfect Power
14
0
0
First
"Lunar" Multiply
15
0
0
First
Escape
20
0
0
First
Color Map
22
4
2
First
Switch Keys to Values
23
1
0
First
Achilles and the Tortoise
24
7
0
Third
Currency Style
27
4
2
First
Chemical Analysis
27
0
0
Second
Chemical Analysis
28
0
0
First
Long Pressed
29
0
0
First
Adjacent Letters
32
0
0
First
Replace with Biggest
32
0
0
First
Bigger Together
33
3
0
First
Find Enemy
36
0
0
First
Can Balance
63
0
2
What is wrong with family
What Is Wrong With This Family?
64
2
2
First
The Einstein Problem-Lite
64
0
0
Second
Can Balance
73
0
0
Second
Achilles and the Tortoise
90
3
2
First
Caesar Cipher (decryptor)
99
0
3
First
Currency Style
147
0
0
Second
Currency Style
157
0
0
The greatest common divisor
The Greatest Common Divisor
162
1
2
First
Moore Neighbourhood
184
5
2
First
Disposable Teleports
232
0
0
Second
Binary Count
331
4
0
First
Caesar Cipher (encryptor)
520
0
0
First
Binary Count
703
1
0
First
Fizz Buzz
5395
0
0
Ice Base
First
Write Quadratic Equation
3
0
0
First
Is String a Number?
3
0
0
First
Correct Capital
13
4
0
First
Identify Block
14
0
0
Second
Monkey Typing
18
16
5
First
Reveal the Number
21
0
0
Second
Identify Block
25
2
0
First
Not in Order
28
0
0
First
Interesting, intersecting
36
0
0
colin_oil_pie
Oil Pie
37
2
0
First
Count Chains
40
0
0
First
Move Zeros
42
0
0
First
When "k" is Enough!
46
0
0
First
Is String a Number? (Part II)
50
0
0
First
Counting Tiles
52
3
4
Second
Largest Rectangle in a Histogram
128
2
1
First
Largest Rectangle in a Histogram
157
1
0
First
How to Find Friends
176
3
0
First
Find Quotes
197
0
0
Morse encoder
Morse Encoder
210
0
0
First
Reverse Roman Numerals
249
0
0
Second
Long Repeat
358
2
2
First
Roman Numerals
506
3
2
Second
The Most Numbers
1001
1
2
First
Feed Pigeons
2391
0
0
First
The Most Numbers
3685
0
0
Alice In Wonderland
First
Flood Area
4
8
0
First
YAML. List and Comments
4
4
2
First
Swap Nodes
9
11
2
First
Tree Walker
11
5
2
Second
Zigzag Array
17
6
2
First
The Shortest Knight's Path
20
2
2
Second
Tree Walker
21
2
2
Third
The Shortest Knight's Path
26
1
0
First
Transposed Matrix
33
6
0
Third
IP Network: Route Summarization
37
2
1
Middle Characters
Middle Characters
39
4
0
Multiplication Table
Multiplication Table
60
3
2
When is Friday
When is Friday?
85
2
0
First
Zigzag Array
91
0
0
Second
The Shortest Knight's Path
101
0
0
First
IP Network: Route Summarization
105
0
3
Second
Long Non Repeat
108
1
0
Second
IP Network: Route Summarization
129
0
3
The fastest horse
The Fastest Horse
137
0
0
Digits Doublets
Digits Doublets
158
0
4
Second
Digits Doublets
175
0
0
Second
Multiplication Table
265
0
1
GitHub
First
Searchlights
9
0
2
Paper_Dice
Paper Dice
13
0
0
First
The Cheapest Flight
14
6
2
First
Shooting Range
15
4
2
First
Power Plants
17
0
0
First
Simplify Unix Path
25
1
3
Second
Expand Intervals
28
5
1
First
Evenly Spaced Trees
53
0
2
Close
Cookies
81
1
0
colin_Solution_for_Anything
Solution for Anything
100
2
0
First
Expand Intervals
120
0
4
First
Broken Clock
122
0
0
First - (credit Nikie)
Painting Wall
141
0
2
First
Open Labyrinth
144
3
0
First
Long Repeat Inside
144
0
0
Second
The Most Frequent Weekdays
149
1
0
First
Area of a Convex Polygon
245
0
0
Second
Create Intervals
271
0
0
First
The Most Frequent Weekdays
337
0
2
First
The End of Other
942
0
0
Second
The End of Other
1002
0
0
Dropbox
First
Calculator-I
3
0
0
First
Hubspot Amulet
9
4
5
First
On the same path
12
4
2
First
Rotating Grille Cipher
16
0
0
First
Nonogram Row
19
0
0
First
Huffman Encode
23
0
0
First
Sort Sorted Groups
24
0
0
Second
Three Points Circle
26
9
2
First
Text Formatting
27
3
2
First
Common Tail
29
0
0
First
The Longest Palindromic
36
0
0
First
Scytale Encryption
45
0
0
First
Place Queens
50
0
2
First
Atbash Cipher
57
0
0
First
Simple Hashlib
70
3
2
First
Three Points Circle
76
3
0
Humpty Dumpty Form
Humpty Dumpty Form
128
1
1
Worth of Words
Worth of Words
157
1
0
First
Speech Module
280
4
0
Second
Speech Module
289
4
2
First
Friendly Number
471
0
0
PyCon TW
First
Double Substring
7
14
2
First
Fused Cubes
7
1
2
Second
Golden Pyramid
13
14
0
Second
Calculate Islands
14
6
2
Third
Golden Pyramid
25
9
2
Simple Areas
Simple Areas
31
8
0
First
Calculate Islands
33
4
0
First
Sum Consecutives
44
2
2
First
Ryerson Letter Grade
58
0
0
Second
Digit Stack
77
3
1
First
Building Visibility
81
0
0
First
Golden Pyramid
89
4
2
First
How Much Gold
89
0
0
First
Express Delivery
126
0
0
First
Robot Sort
141
0
2
First
Digit Stack
568
0
2
Second
House Password
658
3
0
Storage
First
Digging a Canal
3
4
2
First
Square Spiral
9
5
1
First
Exec Quine
9
0
0
First
The Rows of Cakes
11
6
4
Second
Word Pattern
11
5
2
First
Group Equal consecutive
19
11
2
First
Working Hours Calculator
20
0
0
First
Battle Dice
24
0
0
Weak Point
Weak Point
32
7
0
First
Moria Doors
35
2
2
Saw the Stick
Saw the Stick
69
1
1
Second
Earth Distances
72
0
0
First
English to Braille Translator
77
0
0
First
Earth Distances
84
0
0
First
Playfair Cipher
97
0
0
Third
Skew-symmetric Matrix
124
4
0
Second
Skew-symmetric Matrix
188
2
3
First
Word Pattern
213
0
0
First
Skew-symmetric Matrix
564
0
0
HubSpot
First
Univocalic davasaan
1
0
0
First
Inscribe a Contour
2
0
2
First
Next Birthday
10
4
1
First
City's Happiness
12
5
0
First
Non Empty Lines
19
6
2
First
Workout
27
0
0
First
Square Board
31
0
2
First
New Cities
36
2
2
First
Node Disconnected Users
60
1
0
Repeating Decimals
Repeating Decimals
61
0
0
First
Weekly Calendar
61
0
0
Second
The Hamming Distance
122
6
0
Third
Number Base
152
9
2
Second
Number Base
198
6
2
First
Number Base
210
5
0
First
The Hamming Distance
385
1
0
First
Restricted Sum
1525
0
0
Blizzard
First
Permutation Index
7
5
2
colin_stair_steps_space_optimised
Stair Steps
13
9
1
First
Useless Flights
14
0
0
Second
Useless Flights
15
0
0
First
Mountain Scape
24
0
0
First
Reversed Permutation Index
31
0
1
First
Weekend Counter
41
4
1
First
Rectangles Union
45
1
3
First
The First Working Day
49
1
2
First
Unlucky Days
91
2
2
Second
Unlucky Days
96
2
2
Second
The Angles of a Triangle
111
7
0
First
Stressful Subject
112
3
0
Second
Min and Max
134
7
2
First
Radiation Search
143
0
0
First
The Angles of a Triangle
1150
0
0
Rock
First
River Crossing
1
0
1
First
Greedy Number
1
0
0
First
Black Holes
4
8
2
First
Crossword Solver
5
5
1
First
Park Benches
5
0
0
colin_beserk_rook
Berserk Rook
7
5
0
Second
River Crossing
7
0
0
First
Fibonacci Spiral's End
14
4
0
First
Most Efficient Cutting
14
0
0
First
Hexagonal Islands
23
0
0
Second
Berserk Rook
30
2
2
Second
Most Efficient Cutting
30
0
2
Super Root
Super Root
41
2
0
First_and_too_long_colin_water_jars
Water Jars
47
0
0
First
Sort by Removing
48
1
0
Second
Black Holes
48
0
0
Second
Water Jars
49
0
0
First
Parity Bit Generator
135
0
0
First
CheckSum
138
0
3
Second
CheckSum
176
0
0
Second
Parity Bit Generator
180
0
0
Shelter
First
Halloween Monsters
30
0
0
The nearest square number
The Nearest Square Number
33
3
0
Seven Segment
Seven Segment
83
1
2
Completely_Empty
Completely Empty
106
0
0
First
ADFGVX Cipher
129
0
0
Pattern Recognition
Pattern Recognition
142
0
0
Codeship
colin_8_puzzle
8 Puzzle
3
7
0
First
Ugly Numbers
6
0
0
Second
Probably Dice
11
12
0
First
Magic with 5 cards
12
0
0
First
Probably Dice
24
6
4
First
Snake Lite
24
0
0
First
Pearls in the Box
37
5
0
Second
Pearls in the Box
60
4
2
First
Unfair Dice
78
0
0
First
Bats Bunker
91
0
0
The_square_chest
The Square Chest
93
1
0
Hermit
First
Birthday Party
1
1
0
First
Shorter Set
2
0
0
First
Keywords Finder
6
4
0
colin_network_loops
Network Loops
19
2
2
Strawberry Fields
Strawberry Fields
19
0
0
First
Excel Column Number
20
0
0
First
Unique Email Addresses
29
0
0
Second
Unique Email Addresses
30
0
0
First
Stock Profit
32
0
0
First
Fractions Addition
36
1
0
First
Count Consecutive Summers
44
4
1
First
The Good Radix
61
1
0
First
Colder-Warmer
73
0
0
Second
The Good Radix
218
0
0
Watchtower
First
Magic Square
11
2
1
First
Number Guess
18
1
2
First_colin_wall_keeper
Wall Keeper
44
0
0
Second
Funny Addition
48
19
2
First
Bag of Santa Claus
58
0
0
First
Rotate Hole
72
3
0
Convex Hull
Convex Hull
74
0
0
Second
Rotate Hole
139
1
0
Vigenere Cipher
Vigenere Cipher
143
0
0
First
Funny Addition
1037
0
0
Escher
First_colin_crop_rotate_keys_and_locks
Keys and Locks
11
5
0
First
Card Game
13
5
0
First
Graphical Key
19
0
3
Second
Graphical Key
20
0
3
First
Hypercube
27
0
0
First_colin_with_thanks
The Stones
28
2
1
First_simple_secret_room
The Secret Room
31
2
2
First_the_buttons_with_graph_connected_components
The Buttons
32
0
2
First_colin_wild_dogs_dictionary_free
Wild Dogs
34
3
0
First_OrderedDict
Treasures
49
0
0
Second_colin_safe_code_after_extra_tests
Safe Code
51
0
0
First_colin_ground_for_the_house
Ground for the House
54
4
2
First_colin_stone_wall
The Stone Wall
117
0
1
First_olin_map_compass_spyglass
Compass, Map and Spyglass
121
0
2
First_colin_the_ship_teams
The Ship Teams
249
0
0
Not On Map
First
Aggregate and Count
2
0
0
