44
Last seen 4 months ago
Member for 10 years, 2 months, 20 days
Difficulty Normal
Initiation
First
The Most Frequent
293
1
0
First
First Word (simplified)
532
1
0
First
All the Same
563
2
0
First
Multiply (Intro)
649
1
0
First
Easy Unpack
807
0
0
First
Between Markers (simplified)
914
0
0
First
Is Even
942
0
0
Second
Correct Sentence
958
0
0
Home
ord
Pawn Brotherhood
1
351
26
4th
Three Words
3
167
26
First
Changing direction
13
5
0
First
Sun Angle
62
7
1
First
Days Between
127
11
0
First
Missing Number
153
0
0
First
Right to Left
154
12
1
slice
Even the Last
170
11
2
First
Duplicate Zeros
190
0
0
Second
Second Index
196
4
1
First
Three Words
258
0
2
re
Date and Time Converter
302
1
0
Third
Three Words
435
3
2
First
Between Markers
491
1
0
First
Bigger Price
510
2
0
First
Popular Words
533
1
0
First
Second Index
583
1
0
i9
Pawn Brotherhood
667
2
2
First
Sort Array by Element Frequency
752
0
0
First
Backward Each Word
844
0
0
First
Split List
853
0
0
First
Morse Decoder
880
0
0
Second
Non-unique Elements
891
4
0
First
First Word
988
0
0
Second
First Word
989
0
0
Electronic Station
itertools
Can You Pass?
1
83
2
operators
Can You Pass?
5
3
0
First
Boolean Algebra
9
29
5
First
Mathematically Lucky Tickets
14
4
1
Second
Verify Anagrams
18
40
12
re.search
Find Sequence
23
16
0
Winding Number
Inside Block
27
1
0
First
Verify Anagrams
63
1
4
4th
Brackets
77
18
1
First
Find Sequence
85
4
6
Third
Digits Multiplication
138
12
2
4th
Digits Multiplication
229
6
2
First
Digits Multiplication
246
0
2
groupby
Find Sequence
264
0
0
Second
Find Sequence
446
0
0
Scientific Expedition
say quickly
I Love Python!
1
26
0
First
Secret Message
2
405
36
re.sub
Bird Language
2
147
12
First
Remove Accents
2
56
0
except me in the lie
I Love Python!
2
37
5
Clearly
I Love Python!
3
113
4
generator
Cipher Map
6
37
4
Second
The Hidden Word
8
15
1
rot90
Cipher Map
9
9
1
Second
Common Words
10
39
5
re
Striped Words
11
32
2
Third
Morse Clock
15
4
0
Second
Letter Queue
16
9
0
First
Letter Queue
28
1
0
First
Call to Home
29
5
3
ask myself
I Love Python!
34
6
2
First
Pangram
83
10
1
defaultdict
Convert and Aggregate
87
0
0
itemgetter
Call to Home
109
1
2
findall
Secret Message
111
22
6
Third
The Most Wanted Letter
175
6
0
First
The Most Wanted Letter
177
1
0
Second
Morse Clock
254
0
0
re
Conversion into CamelCase
265
1
1
First
Follow Instructions
293
0
0
split
Conversion into CamelCase
313
0
0
Second
Time Converter (24h to 12h)
329
2
0
Second
Absolute Sorting
523
3
0
O'Reilly
Second
Xs and Os Referee
1
1078
89
First
Count Inversions
1
291
22
UserDict
Cipher Crossword
1
45
10
Speedy DP
Loading Cargo
1
16
2
sorted fast
Cipher Crossword
1
0
1
First
Index Power
2
306
23
sorted
Cipher Crossword
3
0
0
topological
Determine the Order
5
22
2
re.match
Cipher Crossword
5
0
0
UserDict 2nd
Cipher Crossword
6
6
0
First
Cipher Crossword
7
3
1
First
Parse Array
7
0
0
DP
Loading Cargo
8
10
3
itemgetter
Median
15
6
0
2nd
Determine the Order
29
4
2
Second
Loading Cargo
33
4
2
First
Xs and Os Referee
39
5
3
re.match
Xs and Os Referee
132
0
1
First
Flatten a List
133
6
0
First
Frequency Sorting
230
0
0
statistics
Median
837
2
1
Third
Xs and Os Referee
1155
0
0
Incinerator
set
Friends
1
463
28
First
Building Base
1
347
23
Second
Building Base
4
32
1
super
Friends
6
19
10
list
Friends
40
0
0
Mine
First
Moore Neighbourhood
1
719
54
slice
Moore Neighbourhood
2
110
9
Second
The Einstein Problem-Lite
7
6
0
StopIteration
Disposable Teleports
11
6
1
First
Currency Style
15
5
0
Second
What Is Wrong With This Family?
24
6
0
First
Determinant
37
0
0
StopIteration
Color Map
37
0
0
First
Best Stock
38
10
0
First
The Greatest Common Divisor
39
6
1
First
Achilles and the Tortoise
75
3
1
format
Binary Count
244
5
0
comprehension
Fizz Buzz
263
5
0
filter
Fizz Buzz
411
3
0
Ice Base
First
Making Change
1
85
10
reduce
Oil Pie
1
42
7
triangle
Clock Angle
1
30
4
memoized branch and bound
Making Change
2
5
3
First
How to Find Friends
3
172
19
Second
Roman Numerals
3
30
3
Second
Making Change
7
8
0
4th
Monkey Typing
9
6
2
ceil & floor
Counting Tiles
18
8
0
Third
Monkey Typing
32
12
1
recursive
Largest Rectangle in a Histogram
36
6
0
branch and bound
Making Change
37
0
0
reduce 2nd
Oil Pie
48
1
0
Cardano
Feed Pigeons
102
5
3
groupby
Long Repeat
112
5
0
groupby
Largest Rectangle in a Histogram
182
0
1
combinations
Largest Rectangle in a Histogram
183
0
2
group-sequence
Feed Pigeons
263
2
1
Third
The Most Numbers
645
1
1
bisect
Roman Numerals
1132
0
1
Alice In Wonderland
IPv4Network
IP Network: Route Summarization
4
24
2
bytes
IP Network: Route Summarization
9
7
4
First
The Shortest Knight's Path
14
3
0
set
IP Network: Route Summarization
18
4
0
Second
Multiplication Table
19
6
1
re
IP Network: Route Summarization
48
0
1
First
Digits Doublets
54
0
0
Second
Transposed Matrix
500
0
1
GitHub
New Year's Day
The Most Frequent Weekdays
1
174
8
set
Power Supply
1
63
6
shortest_path
Open Labyrinth
1
9
0
shortest_path
Power Supply
2
0
0
Second
Shooting Range
4
11
0
re
Broken Clock
5
8
0
multiplayer
Xs and Os Champion
6
0
0
First
The Highest Building
7
0
0
Second
Painting Wall
8
7
0
First
Solution for Anything
10
15
0
and-or
Xs and Os Champion
11
0
0
scipy
Area of a Convex Polygon
28
1
1
First
The Cheapest Flight
34
3
0
StopIteration
Open Labyrinth
42
13
1
Third
Area of a Convex Polygon
53
1
0
Second
The End of Other
71
4
2
Second
The Highest Building
104
0
0
Dropbox
combinations
The Longest Palindromic
1
173
14
5th
URL Normalization
1
24
2
itertools
Place Queens
3
4
8
Third
Place Queens
3
3
2
Second
URL Normalization
6
4
1
First
Place Queens
6
0
2
functional
Place Queens
6
0
0
Third
Speech Module
16
20
1
Second
Friendly Number
17
13
2
First
Tricky String
19
0
0
First
Friendly Number
20
2
0
Second
Numbers Factory
35
10
2
First
The Longest Word
36
0
0
Second
Three Points Circle
45
4
1
First
Common Tail
60
0
0
First
Simple Hashlib
78
2
0
First
Atbash Cipher
85
0
0
golden
The Best Number Ever
86
3
0
f-strings
Friendly Number
136
2
1
First
Speech Module
140
1
0
First
Humpty Dumpty Form
149
0
0
PyCon TW
Second
Simple Areas
1
181
13
ndimage
Calculate Islands
1
15
1
numpy
Building Visibility
1
5
1
Tremaux
Dark Labyrinth
1
5
0
DP
Golden Pyramid
2
80
4
Third
Robot Sort
2
15
1
Third
Building Visibility
2
12
1
connected_components
Calculate Islands
2
8
1
5th
Robot Sort
2
6
0
Second
Dark Labyrinth
4
0
0
Second
Building Visibility
5
2
2
Second
Robot Sort
6
4
3
4th
Robot Sort
7
3
3
First
Robot Sort
10
2
3
Third
Network Attack
11
7
0
First
Golden Pyramid
12
4
0
re.findall
Double Substring
18
7
0
Second
Digit Stack
19
5
1
Second
Golden Pyramid
19
3
3
First
Simple Areas
19
1
1
Second
How Much Gold
21
2
2
Second
Express Delivery
25
0
0
First
How Much Gold
42
0
1
Third
Golden Pyramid
43
0
0
Third
Simple Areas
85
3
0
First
Calculate Islands
95
0
0
First
Ryerson Letter Grade
136
0
0
First
Sum Consecutives
169
0
0
re.search
Double Substring
184
0
0
Second
House Password
710
2
1
Storage
First
Moria Doors
1
231
16
First
Word Pattern
1
116
9
Triangle Wave
Square Spiral
1
24
6
itertools
Hexagon Spiral
1
7
1
4 itertools
Square Spiral
2
52
5
numpy.array
Skew-symmetric Matrix
3
13
5
Second
Weak Point
4
34
5
Second
Skew-symmetric Matrix
4
31
5
First
Playfair Cipher
5
6
0
First
Exec Quine
10
5
0
First
Digging a Canal
14
0
0
4th
English to Braille Translator
18
1
0
numpy
Weak Point
20
0
0
First
Earth Distances
31
0
1
Second
The Rows of Cakes
40
2
4
First
Restricted Prime
51
0
0
itertools
Saw the Stick
53
2
1
First
Skew-symmetric Matrix
136
3
3
f-strings
Word Pattern
183
0
0
HubSpot
Second
Repeating Decimals
3
13
0
First
Repeating Decimals
5
8
1
RE
Auto Painting
33
0
2
First
The Hamming Distance
330
1
0
Second
Number Base
383
2
0
Second
Restricted Sum
806
0
0
Blizzard
calendar.weekday
Unlucky Days
1
92
6
cheat sheet
Unlucky Days
1
27
3
ndimage
Safe Coasts
1
9
1
numpy.less
String Conversion
1
0
0
flood fill
Safe Coasts
5
5
1
400 year cycle
Unlucky Days
9
0
0
elimination
Sudoku Solver
17
1
0
defaultdict
Radiation Search
25
2
1
First
Spaceship Landing Strip
27
1
0
First
String Conversion
49
0
0
numpy.less-less
String Conversion
51
0
1
First
Palindromic Palindrome
53
0
0
First
Min and Max
55
19
1
First
Stair Steps
80
0
0
calendar
Weekend Counter
81
2
0
4th
The Angles of a Triangle
597
0
0
Rock
Counter
Life Counter
1
70
5
Bisection
Super Root
1
46
5
optimize
Super Root
1
26
3
scipy.ndimage
Life Counter
1
18
1
lru_cache
Life Counter
1
8
7
Second
CheckSum
2
33
3
First
Water Jars
2
5
5
Newton
Super Root
3
16
0
First
Web Log Sessions
3
12
0
ChainMap & Counter
Crossword Solver
3
8
1
Newton with initial guess
Super Root
6
2
3
bool
Parity Bit Generator
8
0
0
groupby
Berserk Rook
14
3
0
First
Parity Bit Generator
19
4
0
First
Super Root
23
0
2
Shelter
First
The Lantern Festival
1
5
0
First
ADFGVX Cipher
2
16
3
Counter
One line Drawing
2
13
7
flood fill
The Lantern Festival
7
2
2
First
AMSCO Cipher
15
3
2
First
Pattern Recognition
28
1
0
First
Delivery Drone
36
0
0
math
The Nearest Square Number
206
0
0
First
Ghosts Age
866
0
0
Codeship
re.sub
Behind 2048
1
10
3
groupby
Behind 2048
2
11
2
Second
The 88th Puzzle
2
8
2
First
The 88th Puzzle
2
3
2
First
8 Puzzle
4
6
1
DP
Unfair Dice
9
4
1
First
Behind 2048
11
0
0
Third
Behind 2048
14
0
0
lru_cache
The 88th Puzzle
15
1
0
First
Bats Bunker
28
0
0
Second
Texas Referee
40
0
0
5th
The Square Chest
48
3
0
Counter
Pearls in the Box
68
3
0
First
Probably Dice
103
0
0
First
The Square Chest
302
0
5
Hermit
frozen DP
Break Rings
1
16
0
First
Simplification
1
9
2
Counter
Simplification
2
14
4
First
Break Rings
3
53
3
numpy
Mono Captcha
4
0
0
First
Mono Captcha
10
3
1
Third
The Good Radix
24
3
1
Third
Network Loops
24
1
0
First
Anagrams By Stacks
30
0
0
First
Colder-Warmer
30
0
0
First
Ore In The Desert
32
0
0
reset
Keywords Finder
40
0
0
First
The Good Radix
116
0
2
Watchtower
named group
Vigenere Cipher
1
34
8
First
Bacteria Colonies
1
23
2
ndimage
Bacteria Colonies
1
17
2
Run Length with itertools
Bacteria Colonies
2
2
3
Counter
Ethernet Ring Dimensioning
3
7
0
First
Bag of Santa Claus
3
4
1
Run Length
Bacteria Colonies
3
4
0
DP itertools
DNA Common Sequence
3
2
3
Third
Numbered Triangles
5
6
1
randomized
Bulls and Cows
6
4
1
namedtuple DP
DNA Common Sequence
8
3
4
First
Vigenere Cipher
8
3
2
re named groups
Vigenere Cipher
9
3
10
First
Convex Hull
10
3
0
re.finditer
Rotate Hole
12
0
2
Counter
Bacteria Colonies
14
1
2
First
Magic Square
14
0
1
Second
Number Guess
26
0
0
First
Compare Functions
35
0
0
operators
Funny Addition
51
17
1
First
Numbered Triangles
73
0
8
Second
Rotate Hole
113
1
2
Escher
numpy.where
Ground for the House
24
0
0
numpy.where
Compass, Map and Spyglass
28
0
0
First
The Stone Wall
232
0
0
First
Ground for the House
238
0
1
groupby
The Ship Teams
422
0
0
defaultdict
The Ship Teams
423
0
0
Not On Map
First
Most Wanted Letter
130
0
0
