16
Dennis Koopman
Last seen 8 months ago
Member for 6 years, 11 months, 23 days
Difficulty Normal
I wanted to solve 50 CheckiO missions to improve my Python and algorithm skills. It proved to be more more effective and more fun than I thought, so I kept going.
Initiation
First
The Most Frequent
142
4
1
First
Correct Sentence
420
0
0
First
Easy Unpack
998
0
0
Home
First
Second Index
106
6
2
reverse sort lambda key
Bigger Price
172
5
0
Python is great
Morse Decoder
457
0
1
First
Date and Time Converter
465
0
0
First
Right to Left
569
3
0
First
Pawn Brotherhood
1095
1
0
regular expression
First Word
1198
0
0
Needlessly long I suspect...
Days Between
1931
0
0
First
Non-unique Elements
2112
1
0
Ugly but works
Three Words
3967
0
0
First
Even the Last
5291
0
0
Electronic Station
bfs
Can You Pass?
179
0
0
First
Verify Anagrams
441
2
4
First
Digits Multiplication
3544
0
0
Scientific Expedition
First
Morse Clock
130
3
0
First
Time Converter (24h to 12h)
217
3
0
moves dict and list comprehensions
Follow Instructions
319
0
0
splitting, joining, trying and excepting
The Hidden Word
332
0
0
First
Conversion into CamelCase
351
0
0
First
Conversion from CamelCase
363
0
0
First
Call to Home
402
0
0
First
Letter Queue
662
0
0
lambda to the rescue
Absolute Sorting
845
2
0
First
Bird Language
1045
0
0
First
Pangram
1194
0
0
First
Common Words
1628
0
0
First
Striped Words
1772
0
0
First
Secret Message
4084
0
0
Room for improvement...
The Most Wanted Letter
4942
0
0
O'Reilly
Monte Carlo simulation
Loading Cargo
21
0
1
First
Time Converter (12h to 24h)
231
0
0
First
Index Power
667
2
0
pair of for-loops
Count Inversions
917
0
0
Two solutions
Median
1166
1
0
Surprised this worked...
Xs and Os Referee
3807
0
0
Incinerator
First
The Warriors
46
7
0
First
Party Invitations
90
0
0
First
Building Base
164
2
2
First
Friends
642
0
1
Mine
First
Achilles and the Tortoise
25
7
1
First
Caesar Cipher (decryptor)
84
0
0
First
Caesar Cipher (encryptor)
97
4
0
First
Cut Sentence
158
0
0
First
Best Stock
187
4
0
First
Binary Count
2095
0
0
First
Fizz Buzz
5388
0
0
Ice Base
First
Making Change
23
2
0
First
Reverse Roman Numerals
37
0
0
Second: shorter, more readable and faster
Making Change
104
0
0
First
Long Repeat
145
4
0
First
Clock Angle
213
0
0
First
Morse Encoder
227
0
0
First
How to Find Friends
339
1
0
Easier after reverse romans
Roman Numerals
394
4
0
First
Feed Pigeons
844
0
2
First
Monkey Typing
1758
0
2
First
The Most Numbers
3583
0
0
Alice In Wonderland
First
Middle Characters
139
0
0
First
The Fastest Horse
147
0
0
First
Long Non Repeat
245
0
0
bin playing with truthtables
Multiplication Table
254
0
3
Oneliner with lambda and zip
Transposed Matrix
583
0
0
GitHub
Ugly if-elif-else, but pretty fast
Broken Clock
3
0
1
First
Merge Intervals
54
1
0
zippy listcomp
The Highest Building
83
1
0
Dictionary and strftime
Broken Clock
107
0
0
split, strip and find
Cookies
138
0
0
First
The Most Frequent Weekdays
346
0
0
Dropbox
Nothing Special
Worth of Words
228
0
0
if, elif, else and bunch of formulas
Humpty Dumpty Form
354
0
0
Works but ugly
Speech Module
5074
0
0
PyCon TW
First
House Password
358
0
0
Simple
Simple Areas
424
0
0
Storage
reverse sort Triangulars, then loop
Saw the Stick
318
0
0
HubSpot
Simple recursion
Restricted Sum
581
1
0
two functions
The Hamming Distance
1115
0
0
Blizzard
First
Unlucky Days
73
3
0
Standing on the shoulders of Levenshtein
String Conversion
130
0
0
Simple dynamic algo
Stair Steps
155
0
0
First
The Angles of a Triangle
1273
0
0
Rock
bisection search
Super Root
202
0
0
Shelter
First
The Nearest Square Number
99
0
0
Many steps...
ADFGVX Cipher
103
0
0
First
Ghosts Age
1115
0
0
Codeship
Boring hack (data > code)
The Square Chest
537
0
0
Watchtower
unzipping key
Vigenere Cipher
145
0
0
set and modulo
Rotate Hole
450
0
0
Escher
split, find & rfind
Ground for the House
1
69
5
sorted list comprehensions
The Ship Teams
14
11
0
coordinates dict and some calcs
Compass, Map and Spyglass
44
3
0
transpose with map and zip, then loop
The Stone Wall
87
1
2