27
Eduardo Tsen
Last seen 1 year ago
Member for 2 years, 13 days
Difficulty Normal
Initiation
rstrip
End Zeros
17
17
2
lstrip
Beginning Zeros
23
12
0
Counter.most_common()
The Most Frequent
207
3
0
max
Max Digit
241
4
0
abs
Nearest Value
304
2
0
plain
Multiply (Intro)
334
4
1
re.{findall,sub}
Split Pairs
519
1
0
all + comprehension
All Upper I
818
0
1
upper + endswith
Correct Sentence
823
1
0
Home
slice & starmap
Split List
79
0
0
replace & split
First Word
116
7
0
finditer + islice
Second Index
188
5
2
str.replace
Right to Left
381
5
0
double split
Morse Decoder
416
1
1
triplewise
Three Words
540
0
0
substitute plurals
Date and Time Converter
788
0
0
Counter.most_common()
Bigger Price
982
1
2
2x Counter
Sort Array by Element Frequency
995
0
0
enumerate
Even the Last
1049
2
0
none slices
Between Markers
1306
0
0
timedelta
Sun Angle
1358
0
0
counter & itemgetter
Popular Words
1415
0
0
heapq.nlargest()
Bigger Price
1663
0
0
precalculated
Pawn Brotherhood
3524
0
0
Electronic Station
breadth first search
Remove Brackets
8
0
0
@functools.cache
Mathematically Lucky Tickets
9
0
0
str.translate
Surjection Strings
35
8
0
'list' object has no attribute 'find'
Words Order
63
5
1
apply verifiers
Acceptable Password II
93
4
0
methodcaller
Boolean Algebra
99
7
0
check if all sides are proprtional
Similar Triangles
104
3
0
ray trace
Inside Block
109
0
0
splitext
Sort by Extension
113
3
0
re.fullmatch
Unix Match. Part 2
159
0
0
stack
Brackets
206
5
1
apply verifiers
Acceptable Password IV
208
1
0
itertools.pairwise
Ascending List
230
2
0
disjoint set
Can You Pass?
231
0
0
re.fullmatch
Unix Match. Part 1
264
0
0
str.isupper
All Upper II
267
1
0
math.prod
Digits Multiplication
272
0
0
apply verifiers
Acceptable Password V
383
0
0
apply verifiers
Acceptable Password VI
426
0
0
apply verifiers
Acceptable Password III
538
0
0
compare lists
Find Sequence
831
0
0
Counter
Verify Anagrams
1850
0
0
Scientific Expedition
match case
Sum by Type
2
17
3
with StringIO
Conversion from CamelCase
14
15
3
min or max
The Most Wanted Letter
26
4
0
format and translate
Morse Clock
74
5
0
time + format
Time Converter (24h to 12h)
77
8
0
match-case
YAML. More Types
122
0
0
avoid text transformation
Pangram
196
0
0
unicodedata
Remove Accents
227
0
0
dict comprehension
YAML. Simple Dict
255
0
0
next
Bird Language
301
4
0
map + cycle (wrong)
Caps Lock
336
0
3
map + cycle (corrected)
Caps Lock
340
0
1
row by row, col by col
The Hidden Word
469
0
0
groupby
Call to Home
491
0
0
Enum
Follow Instructions
493
0
0
index
Goes Right After
528
0
0
re.split()
Conversion into CamelCase
640
0
0
intersection 2
Common Words
748
1
0
processor class
Letter Queue
770
0
0
issuperset
Striped Words
1116
0
0
re.sub
Secret Message
1377
1
0
itertools.{chain, compress, cycle, starmap}
Cipher Map
1622
0
0
intersection
Common Words
2099
0
0
O'Reilly
datetime comparison
Lightbulb Start Watching
12
8
1
heapq
The Final Stone
20
3
0
more
Lightbulb More
35
0
0
track successors
Determine the Order
39
4
1
check operation
Lightbulb Operating
41
0
0
Counter + sorted
Frequency Sorting
45
0
0
zero or next
Sort Except Zero
47
5
1
filter by state
Multiple Lightbulbs
79
0
0
timedelta
Lightbulb Intro
109
3
4
strftime/strptime
Time Converter (12h to 24h)
151
2
0
zip_longest
Lightbulb End Watching
151
0
0
take until
Remove All After
223
2
1
brute force - all combinations
Loading Cargo
229
0
0
recurse with map
How Deep
240
0
0
iter with callable
Chunk
249
0
0
recur items
The Flat Dictionary
261
0
0
split when
Reverse Every Ascending
287
0
0
yield from
Flatten a List
297
4
0
sliding window
Median of Three
316
0
0
itertools
Compress List
373
0
0
shift len
Majority
644
0
0
combinations
Count Inversions
1016
0
0
chain
Xs and Os Referee
2094
0
0
statistics.median
Median
3261
0
0
Incinerator
sort 'em up
The Warlords
39
1
0
proper dataclasses
The Vampires
53
3
0
hasattr/setattr/getattr
The Weapons
104
0
0
last fight wins
Straight Fight
119
0
0
regex tokenizer
Hacker Language
119
0
0
geometric formulas
Geometry Figures
141
0
1
RegularPolygon base class
Geometry Figures
142
0
0
dummy heal (pass)
The Healers
143
0
0
metaclass & ABC
Army Units
144
0
0
linked list
The Lancers
145
0
0
class decorator
Capital City
147
0
0
sizzle
Microwave Ovens
157
0
0
partialmethod
Dialogues
178
0
0
Ich glotz TV
Voice TV Control
193
0
0
dataclass
Every Person is Unique
210
0
0
observer pattern
Party Invitations
225
0
0
short and simple
3 Chefs
242
0
0
UserList
Text Editor
267
0
0
add hit method
The Defenders
334
0
0
iterator as state
Multicolored Lamp
365
0
0
last fight wins
Army Battles
454
0
0
defaultdict(set)
Friends
775
0
0
simple class
Building Base
796
0
0
minimize code repetition
The Warriors
834
0
0
Mine
cube coordinates
Find Enemy
3
0
0
backtrack generator
Fast Train
7
0
0
recursive with adjacency matrix
Domino Chain
61
0
0
just math
Escape
68
0
0
graphs
What Is Wrong With This Family?
78
2
0
simple deduction
The Einstein Problem-Lite
78
0
0
for loop
Chess Knight
87
0
0
gaussian elimination
Determinant
106
0
0
greedy
Color Map
119
0
0
sort padded
Bigger Together
127
0
0
brute force
Can Balance
151
0
0
re.sub
Currency Style
178
0
0
backtrack
Disposable Teleports
233
0
0
rsplit
Cut Sentence
286
0
0
binary gcd algorithm
The Greatest Common Divisor
464
0
0
int.bit_count
Binary Count
582
2
0
elif
Fizz Buzz
1150
1
0
itertools.product
Moore Neighbourhood
1196
0
0
Ice Base
find-union
Count Chains
10
0
0
calculate lookup
Identify Block
97
0
0
df-search connectd components
Count Chains
118
0
0
bottom up
Making Change
141
0
0
simple lookup
Morse Encoder
158
2
0
groupby
Long Repeat
189
4
0
map contains
Monkey Typing
192
4
0
finditer
Find Quotes
195
1
0
itertools
Feed Pigeons
206
3
0
reduce
Oil Pie
210
0
0
cached power
Counting Tiles
277
0
0
Δ_θ
Clock Angle
285
0
0
min/max with default
The Most Numbers
473
3
1
subtractive
Reverse Roman Numerals
516
0
0
additive
Reverse Roman Numerals
517
0
0
groupby
Largest Rectangle in a Histogram
577
0
0
disjoint set
How to Find Friends
904
0
0
just lookup
Roman Numerals
3326
0
0
max - min
The Most Numbers
4280
0
1
Alice In Wonderland
strptime + weekday
When is Friday?
42
5
1
collections.deque
Middle Characters
49
4
1
generator
Swap Nodes
147
0
0
bits and bytes
IP Network: Route Summarization
169
0
0
list comprehension
Zigzag Array
198
0
0
Counter
The Fastest Horse
278
0
0
substring generator
Long Non Repeat
337
0
0
zip
Transposed Matrix
638
0
0
GitHub
loops
Long Repeat Inside
21
0
0
plain generator
Create Intervals (generator version)
53
0
0
sort input
The End of Other
105
0
0
dijkstra
The Cheapest Flight
111
0
0
calendar
The Most Frequent Weekdays
541
0
0
dfs with namedtuple
Open Labyrinth
957
0
0
Dropbox
monotonically increasing product
Grille Cipher Attack
4
0
0
distribute
Scytale Encryption
9
5
1
spaces
Text Formatting
12
7
0
calculate permutation
Rotating Grille Cipher
26
0
0
maketrans + swapcase
Atbash Cipher
63
0
0
101
Speech Module
176
6
0
literal_eval
Three Points Circle
394
0
0
decimal
Friendly Number
587
0
0
SequenceMatcher
The Longest Palindromic
743
0
0
PyCon TW
simplified reduction
How Much Gold
10
5
1
for line in TABLE
Ryerson Letter Grade
21
5
1
sympy.solve
How Much Gold
25
0
0
FusingCubes
Fused Cubes
25
0
0
groupby
Sum Consecutives
33
4
1
call stack generator
Digit Stack
48
4
1
raytrace
Building Visibility
93
0
0
dijkstra
Express Delivery
95
0
0
top-down
Golden Pyramid
97
4
1
cocktail shaker sort
Robot Sort
174
0
0
brute force
Double Substring
303
0
0
disjoint set
Calculate Islands
329
0
0
dijkstra
Network Attack
354
0
0
Counter
House Password
449
0
0
bottom-up
Golden Pyramid
473
0
0
fun array
Simple Areas
494
0
0
Storage
count lines, not cakes
The Rows of Cakes
6
0
1
f-string
Exec Quine
21
0
0
cube coordinates
Hexagon Spiral
32
0
0
fix cycle by cycle
Mind Switcher
52
0
0
yet another dijkstra
Digging a Canal
69
0
0
harvesine formula
Earth Distances
90
0
0
class with OrderedDict
Playfair Cipher
106
0
0
itertools
English to Braille Translator
112
0
0
Sieve of Eratosthenes
Restricted Prime
118
0
0
just math
Square Spiral
120
0
0
groupby
Group Equal consecutive
220
0
0
@functools.cache
Moria Doors
275
0
0
sliding window
Saw the Stick
388
0
0
cmp_to_key
Weak Point
612
0
0
__getitem__
Weak Point
613
0
0
combinations_with_replacement
Skew-symmetric Matrix
694
0
0
HubSpot
str.splitlines
Non Empty Lines
27
4
1
factor table
Square Board
60
0
0
disjoint set
New Cities
146
0
0
sets
New Cities
147
0
0
disjoint set
Node Disconnected Users
187
0
0
recursion
Restricted Sum
1612
0
0
Blizzard
geometry (O(n))
Mountain Scape
4
0
0
Knuth's Dancing Links (DLX) - pretty fast
Sudoku Solver
6
5
2
no factorial
Reversed Permutation Index
7
5
1
Knuth's Dancing Links (DLX) using dicts
Sudoku Solver
7
0
1
no factorial
Permutation Index
10
5
1
prim's
Connect Stars
11
1
0
stacking rectangles
Spaceship Landing Strip
13
0
0
sum (lots of) little mountains
Mountain Scape
18
2
0
escaped quote
Palindromic Palindrome
34
0
0
multi-dijkstra
Useless Flights
57
0
0
track heights and widths
Spaceship Landing Strip
93
0
0
itertools.product
Rectangles Union
99
0
1
dilate and flood fill
Safe Coasts
104
0
0
datetime.date
The First Working Day
157
0
0
recursive edit with SequenceMatcher
String Conversion
165
0
0
disjoint set
Radiation Search
169
0
0
recursive generator
Stair Steps
196
0
0
just compare
Min and Max
280
3
1
gauss
Unlucky Days
416
0
0
count weeks and rest
Weekend Counter
551
0
0
transform to regex
Stressful Subject
669
0
0
law of cosines
The Angles of a Triangle
1404
0
0
Shelter
floor < sqrt < ceil
The Nearest Square Number
187
0
0
