23
Last seen 2 years ago
Member for 8 years, 8 months, 13 days
Difficulty Normal
Initiation
Short and fast
Split Pairs
1
21
2
Clear and efficient
Beginning Zeros
14
4
0
Short and easy
The Most Frequent
28
2
0
Short and efficient
Nearest Value
60
7
0
Consise with slices
Replace First
66
8
0
Short and efficient
All Upper I
77
0
0
Short solution using built-in functions
Max Digit
162
5
0
Simple
Count Digits
225
3
0
Trivial
Is Even
327
2
0
Simple
Acceptable Password I
517
0
0
Simple solution
Acceptable Password I
518
0
0
Solution with regex
Sum Numbers
586
1
2
Simple and efficient
First Word (simplified)
603
1
0
While loop
End Zeros
677
0
0
Consise with slices
Between Markers (simplified)
690
1
2
Trivial
Number Length
694
0
0
Simple solution
All the Same
740
2
1
Simple
Remove All Before
745
0
0
First
Easy Unpack
749
0
0
Short and simple
Backward String
762
0
0
Short and simple
Correct Sentence
1023
0
0
Trivial
Multiply (Intro)
1104
0
0
Home
First
Pawn Brotherhood
33
3
1
Simple solution
Second Index
70
8
3
Find and slice
Between Markers
73
8
0
Count and sort
Sort Array by Element Frequency
87
0
0
Short and efficient
Backward Each Word
91
5
1
Simple slices
Split List
223
3
0
Simple solution
Date and Time Converter
265
2
1
First
Non-unique Elements
421
0
0
Simple
Morse Decoder
448
0
0
First
Right to Left
707
2
0
Simple and readable
Sun Angle
763
0
0
First
Days Between
822
1
0
Sort and slice
Bigger Price
902
1
0
Regex
First Word
1145
0
0
Simple and efficient
Popular Words
1229
0
0
First
Three Words
1832
0
0
First
Even the Last
2318
0
1
Electronic Station
No redundant or unnecessary checks
Find Sequence
7
3
2
Readable and efficient with queue of dictionaries
Cipher Dict
7
0
0
Dict-based fast solution
Surjection Strings
21
0
0
First
Verify Anagrams
34
2
0
First
Boolean Algebra
61
1
0
Regular expression
Unix Match. Part 1
171
0
0
Simple
Acceptable Password IV
224
0
0
Simple solution
Acceptable Password IV
225
0
0
Simple
Acceptable Password VI
252
0
0
First
Digits Multiplication
268
0
0
Simple
Acceptable Password III
278
0
0
Simple solution
Acceptable Password III
279
0
0
Simple
Acceptable Password II
338
0
0
Simple solution
Acceptable Password II
339
0
0
Simple and efficient
Ascending List
341
0
0
First
Brackets
368
2
0
Scientific Expedition
Regex and try ... except
YAML. Simple Dict
5
1
0
First
The Hidden Word
61
4
1
First
Pangram
122
0
0
Simple
Letter Queue
129
2
1
Simple one-liner
Conversion into CamelCase
174
3
0
First
The Most Wanted Letter
231
0
0
One-liner with regex and join
Conversion from CamelCase
257
1
0
First
Secret Message
274
5
3
Dict and tuple unpacking
Follow Instructions
316
0
0
First
Common Words
329
3
0
First
Striped Words
577
0
0
Deque efficient solution
Letter Queue
627
0
0
First
I Love Python!
688
0
0
First
Absolute Sorting
744
2
0
Simple
Bird Language
864
0
0
Second
Secret Message
913
1
0
O'Reilly
Short and efficient
Sort Except Zero
12
3
1
First
Xs and Os Referee
15
3
0
Readable
Multiple Lightbulbs
19
2
0
Using yield / yield from
Flatten a List (generator version)
26
0
0
Using yield / yield from
Flatten a List (iterator version)
32
0
0
Simple and recursive
How Deep
49
4
1
Readable
Lightbulb End Watching
55
0
0
First
Count Inversions
63
0
0
Readable
Lightbulb Start Watching
116
0
0
Consise with slices
Replace Last
148
3
1
Straightforward with built-in timedelta
Lightbulb Intro
193
0
0
Simple slices
Chunk
207
0
0
Readable and efficient
Reverse Every Ascending
231
0
0
Simple solution
Majority
237
2
1
Short and efficient
Frequency Sorting
366
0
0
Readable
Time Converter (12h to 24h)
367
0
0
Ugly
Flatten a List
494
0
0
Simple solution
Remove All After
540
0
0
First
Median
1825
0
1
First
Index Power
1962
0
0
Incinerator
First
Friends
23
0
0
Simple and Readable
The Vampires
107
0
0
Simple and Readable
The Defenders
128
0
0
Simple and commented
Army Battles
142
1
0
Simple and commented
The Warriors
249
2
0
First
Building Base
408
0
0
Mine
Recursive with backtracking
Determinant
4
2
0
Recursive optimizted brute-force solution
Color Map
8
8
3
First
Moore Neighbourhood
13
4
0
Clean one-pass chemical parser
Chemical Analysis
24
0
0
Simple
Cut Sentence
162
0
0
Detailed
Achilles and the Tortoise
277
0
0
Iterative and recursive
The Greatest Common Divisor
325
0
0
First
Binary Count
1191
0
0
First
Fizz Buzz
3028
0
0
Ice Base
Single pass Solution
Long Repeat
8
6
0
One pass solution
Largest Rectangle in a Histogram
10
0
0
With symmetry optimization
Counting Tiles
25
7
0
One--pass solution
Reverse Roman Numerals
29
0
0
Dynamic Programming solution
Making Change
55
0
0
First
Roman Numerals
113
0
0
First
Feed Pigeons
171
3
0
Simple and efficient with join and conditional expression
Morse Encoder
222
0
1
First
How to Find Friends
814
0
0
First
Monkey Typing
1225
0
0
First
The Most Numbers
1638
0
0
Alice In Wonderland
Single pass solution with dictionary
Long Non Repeat
2
6
0
Formula with explanation
Multiplication Table
3
18
2
Numpy + Counter
The Fastest Horse
8
0
0
Documented
Digits Doublets
17
3
0
Simple and Readable
Zigzag Array
105
0
0
Simple and Readable
Middle Characters
163
0
0
First
Transposed Matrix
415
0
0
GitHub
One pass efficient solution
Simplify Unix Path
1
2
0
Readable single pass solution
Create Intervals
7
2
0
Optimized readable brute-force
Long Repeat Inside
11
0
1
Simple, efficent and documented
Merge Intervals (generator version)
20
0
0
One pass efficient solution
Create Intervals (generator version)
42
0
0
Regex and f-string
Cookies
48
3
0
BFS iterative solution using deque
Power Supply
48
0
0
Simple shortest path with BFS
Open Labyrinth
48
0
0
Simple shortest path with BFS with deque
Open Labyrinth
49
0
0
Simple, efficient and readable
Merge Intervals
53
1
1
Clear
The Most Frequent Weekdays
74
4
0
First
Solution for Anything
81
2
0
Object Oriented and efficient
Painting Wall
119
0
0
Simple and optimized
The Highest Building
123
0
0
First
The End of Other
173
2
0
Dropbox
First
Speech Module
5
12
0
Short, readable and efficient
Worth of Words
17
8
1
Second
Speech Module
20
3
0
Fast factoring
Numbers Factory
33
0
0
Simple solution
Friendly Number
47
7
1
First
Three Points Circle
182
0
0
First
The Best Number Ever
231
0
0
Simple with function map
Simple Hashlib
242
0
0
No redundant computations
Humpty Dumpty Form
264
0
0
Optimized
The Longest Palindromic
394
0
0
PyCon TW
One pass
Sum Consecutives
6
0
0
Iterative DFS
Calculate Islands
16
0
0
Functional Style
Golden Pyramid
46
0
0
Gaus custom solver
How Much Gold
77
0
1
Table with grades in descendig order
Ryerson Letter Grade
93
0
0
Simple
Simple Areas
101
2
0
First
Golden Pyramid
137
2
0
Optimized and readable
Double Substring
147
0
0
Bubble sort with preemptive break
Robot Sort
164
0
0
First
Digit Stack
589
0
0
First
House Password
1214
1
1
Storage
Simple linear solution
Saw the Stick
4
4
0
With cached set and scores
Moria Doors
7
0
1
Linear solution
Saw the Stick
14
0
1
Regex and geometry
Earth Distances
47
0
0
Compact
Skew-symmetric Matrix
65
6
0
Compact
Weak Point
86
3
0
O(n^2 log(n)) solution
The Rows of Cakes
112
0
0
HubSpot
Solution with datetime.date
Next Birthday
30
1
0
Readable and efficient
New Cities
53
1
0
Efficient, readable and commented
Repeating Decimals
72
0
0
Simple solution with two queues
Auto Painting
80
0
0
Short and simple
Non Empty Lines
98
0
0
Iterative DFS
Node Disconnected Users
181
0
0
First
Number Base
583
1
1
First
The Hamming Distance
662
0
0
Recursive
Restricted Sum
867
0
0
Blizzard
Space efficient
String Conversion
7
0
0
Generic
Min and Max
13
2
0
Prim's algorithm with priority queue
Connect Stars
26
0
0
Iterative DFS
Radiation Search
122
0
0
Readable and efficient
Stressful Subject
638
0
0
Simple
The Angles of a Triangle
680
0
0
Rock
Functional Style
Parity Bit Generator
9
0
0
Optimized readable brute-force
Most Efficient Cutting
24
0
0
Fixed-point with average
Super Root
37
2
0
Gridless solution
Life Counter
73
0
0
One-pass efficient solution
Sort by Removing
96
0
0
Shelter
Short and simple
The Nearest Square Number
80
0
0
Simple and Readable
Pattern Recognition
151
0
0
Scary
Ghosts Age
747
0
0
Codeship
Recursive
Pearls in the Box
11
3
0
BFS with deque
The 88th Puzzle
42
0
0
BFS with deque (2)
The 88th Puzzle
43
0
0
Hermit
Readable
Colder-Warmer
22
1
0
Recursive parser with associated grammar
Simplification
28
0
0
Fractions and f-strings
Fractions Addition
40
0
0
Watchtower
Clear and simple
Ethernet Ring Dimensioning
9
4
0
Optimized Brute-Force Search
Magic Square
29
0
0
Addition without + - / *
Funny Addition
57
2
1
Readable solution
Compare Functions
68
0
0
Readable solution 2
Compare Functions
69
0
0
Clear, readable
Vigenere Cipher
120
0
0
Simple with inner function
Rotate Hole
431
0
0
Escher
Simple and efficient
Ground for the House
53
4
0
Simple
The Stone Wall
66
2
3
Simple and efficient
Compass, Map and Spyglass
115
0
0
Simple
The Ship Teams
139
2
0
Not On Map
Simple and fast with array of frequencies
Most Wanted Letter
87
0
0
