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Freek Dijkstra
http://www.macfreek.nl/freek/
Last seen 12 months ago
Member for 11 years, 4 months, 21 days
Difficulty Normal
Physicist by education.
Network specialist by profession.
Amateur programmer by hobby.
Home
Use itertools.pairwise & list concatenation
Changing direction
6
0
0
regexp
Three Words
50
1
0
strptime & string formatting
Date and Time Converter
158
3
0
First
Non-unique Elements
255
0
0
First
Even the Last
1819
0
0
Electronic Station
S*L*O*W
Mathematically Lucky Tickets
25
0
2
List comprehension + reduce
Digits Multiplication
40
1
0
Loopy Loop
Find Sequence
69
0
0
Filter, sort, compare
Verify Anagrams
355
2
1
Simple stack
Brackets
628
0
1
Scientific Expedition
Remove Mn chars after NFD normalization
Remove Accents
23
6
0
zip
The Hidden Word
79
0
0
First
Morse Clock
120
3
0
First
Absolute Sorting
131
0
0
Use set.intersection
Pangram
138
0
0
First
Striped Words
397
0
0
Set intersection
Common Words
817
0
0
First
The Most Wanted Letter
1247
0
0
2 big pros, 3 smaller cons
I Love Python!
1460
0
0
O'Reilly
Exit checks
Parse Array
1
3
0
Very Fast!
Determine the Order
7
2
0
Fixed
Loading Cargo
16
5
2
Match sequence patterns (incomplete)
Cipher Crossword
50
0
0
First
Loading Cargo
514
0
0
First
Flatten a List
689
0
0
First
Xs and Os Referee
984
0
0
First
Median
1383
0
0
Mine
Depth first search with recursion
Disposable Teleports
23
3
1
First
What Is Wrong With This Family?
65
2
2
Short
Binary Count
852
0
0
First
Fizz Buzz
1258
0
0
Ice Base
Loop colomns in a quarter
Counting Tiles
2
6
1
All Math
Feed Pigeons
3
29
5
First
Largest Rectangle in a Histogram
18
0
0
Mark Pilgrim's library
Roman Numerals
91
28
8
Plain
Morse Encoder
125
2
0
First
The Most Numbers
127
13
1
Use of Mark Pilgrims roman library
Reverse Roman Numerals
128
0
0
Alice In Wonderland
Use ipaddress module
IP Network: Route Summarization
5
4
0
BFS with mutations
Digits Doublets
56
0
0
Breadth First Search
The Shortest Knight's Path
80
0
0
First
Transposed Matrix
216
0
0
GitHub
Simple math
Area of a Convex Polygon
2
25
2
First
The End of Other
32
0
0
py-rangeset library
Painting Wall
52
0
0
First
Solution for Anything
76
0
0
Re-useable code
Open Labyrinth
89
5
0
Dropbox
Using difflib
The Longest Palindromic
2
9
1
First
Friendly Number
15
3
0
First
Three Points Circle
17
12
2
First
Speech Module
24
7
0
Clear & fast
Numbers Factory
154
2
0
4-line solution with difflib
The Longest Palindromic
174
2
0
PyCon TW
First
Double Substring
2
2
0
Clear, but lengthy
Unfair Districts
8
2
0
Straightforward
Building Visibility
20
0
0
Simple addition
How Much Gold
22
2
0
A*
Express Delivery
27
0
0
First
Golden Pyramid
65
4
0
Find, expand and mark islands
Calculate Islands
101
0
0
Three formulas
Simple Areas
115
1
0
First
Network Attack
264
0
0
First
House Password
706
2
1
Storage
Coordinate transform
Square Spiral
5
8
0
Generic: works for all primes
Restricted Prime
6
0
0
All 128 states
Haunted House
9
0
0
Dijkstra algorithm
Digging a Canal
17
0
0
Poor BFS
Haunted House
33
0
0
Too complicated
The Rows of Cakes
48
0
0
zip_longest
Word Pattern
51
0
3
First
Skew-symmetric Matrix
111
0
0
With notes
Weak Point
553
0
0
HubSpot
bin, zip, map, xor, sum
The Hamming Distance
52
0
1
Simple: just go through it in order, twice
Auto Painting
106
0
0
Recursive
Restricted Sum
107
0
0
First
Number Base
870
0
0
Blizzard
7 strategies
Sudoku Solver
1
33
5
Backslash magic
Palindromic Palindrome
5
2
2
Region detection
Radiation Search
9
4
0
Second, fixed
Stair Steps
82
0
0
First
Spaceship Landing Strip
109
0
0
With exceptions too
Min and Max
281
2
9
First
Weekend Counter
393
0
0
First
The Angles of a Triangle
434
0
0
Improved, with exceptions
Min and Max
508
0
0
Rock
BFS
Water Jars
15
0
0
First
CheckSum
59
0
0
Variant of Newton approximation, works for almost any input number
Super Root
191
0
0
Lamber W function, with poor accuracy method
Super Root
222
0
0
Shelter
Overengineered
Completely Empty
38
0
0
Eerie and unreadable
Ghosts Age
45
0
0
Codeship
Fast, clear
Pearls in the Box
9
4
0
Suurballe algorithm
Snake Lite
10
0
2
Four strategies
Minesweeper
13
1
0
Another BFS
8 Puzzle
19
0
0
Dijkstra/A*
Bats Bunker
32
0
0
Brute force
The Square Chest
71
0
0
Hermit
First
Colder-Warmer
3
5
0
Recursive two-tuple iterator
Reverse Engineer
5
5
0
Generic BFS puzzle
Anagrams By Stacks
22
0
0
First
Keywords Finder
28
0
0
Dumb brute force
Ore In The Desert
34
0
0
Assumes 4-bit wide chars
Mono Captcha
35
0
0
Brute force
The Good Radix
71
0
0
Watchtower
Brute force, smart order
Numbered Triangles
1
14
6
Wikibooks is my friend
Convex Hull
11
3
0
Dumb brute force
Bulls and Cows
20
0
1
Solve it in your sleep()
Funny Addition
22
6
1
Brute force
Number Guess
28
0
0
