31
Sawako Ohno
Last seen 2 months ago
Member for 2 years, 12 months, 3 days
Difficulty Normal
Initiation
First
Count Digits
14
5
1
Home
First
Backward Each Word
3
8
1
First
Popular Words
17
13
2
Second
Split List
37
9
2
Simple Solution
Morse Decoder
75
7
0
Second
Backward Each Word
96
5
1
One by One
Date and Time Converter
99
5
2
Simple Solution
Split List
114
5
3
Simple Solution
Sun Angle
141
5
0
First
Sort Array by Element Frequency
179
5
2
First
Non-unique Elements
369
10
0
First
Second Index
826
1
0
First
Pawn Brotherhood
1276
1
2
Electronic Station
Winding Number Algorithm
Inside Block
4
5
0
First
Unix Match. Part 2
9
9
0
First
Can You Pass?
20
5
0
First
Remove Brackets
20
5
0
First
Unix Match. Part 1
30
7
0
First
Similar Triangles
53
5
2
First
Surjection Strings
69
5
2
First
Sort by Extension
213
1
1
First
Words Order
523
0
0
First
Verify Anagrams
1817
0
0
Scientific Expedition
First
YAML. Simple Dict
26
5
0
First
YAML. More Types
47
5
0
Create Two patterns of matrix
The Hidden Word
49
5
0
First
I Love Python!
142
12
3
First
Common Words
171
6
0
First
Cipher Map
304
1
0
First
Call to Home
469
0
0
First
Absolute Sorting
626
3
0
First
Morse Clock
639
0
0
First
Time Converter (24h to 12h)
702
0
0
First
Secret Message
818
2
2
O'Reilly
Solution with dictionary
Lightbulb More
3
6
1
Create dictionaries for on-off state & remaining time
Lightbulb Operating
8
5
0
Cases one-by-one
Lightbulb End Watching
11
5
1
Stepwise
Lightbulb Start Watching
17
6
1
Recursion
The Flat Dictionary
54
3
0
itertools.permutations()
Cipher Crossword
63
0
0
itertools.product
Loading Cargo
70
2
0
First
Integer Palindrome
85
0
0
First
Sum of Digits
131
0
0
First
Determine the Order
170
0
0
First
Xs and Os Referee
440
3
0
Incinerator
First
Text Editor
21
5
1
First
The Warlords
37
1
0
Second
Geometry Figures
45
1
1
First
Multicolored Lamp
68
5
2
First
Straight Fight
94
0
0
First
Geometry Figures
119
0
0
Third
Geometry Figures
120
0
0
First
The Lancers
123
0
0
First
Voice TV Control
178
0
0
First
Party Invitations
205
0
0
Mine
Angle between vectors
Find Enemy
7
0
0
First
Fast Train
16
2
0
First
Can Balance
21
6
1
First
Chess Knight
27
3
0
First
Caesar Cipher (decryptor)
45
2
0
First
Escape
49
0
0
First
Domino Chain
56
0
0
First
The Einstein Problem-Lite
67
0
0
First
Determinant
101
0
0
First
Color Map
113
0
0
First
The Greatest Common Divisor
141
2
1
First
Binary Count
148
10
2
First
Currency Style
165
0
0
BFS
Disposable Teleports
227
0
0
First
What Is Wrong With This Family?
236
0
0
First
Moore Neighbourhood
252
4
0
First
Cut Sentence
257
0
0
1-Liner
Caesar Cipher (encryptor)
649
0
0
Ice Base
Second: Intended to be fast for large prices
Making Change
12
0
0
First
Oil Pie
45
2
0
re.findall() approach for Histogram
Largest Rectangle in a Histogram
49
0
0
First
Identify Block
86
0
0
BFS
Count Chains
88
0
0
DFS
Count Chains
89
0
0
Third
Count Chains
90
0
0
First
Making Change
129
0
0
First
Long Repeat
139
5
0
First
Counting Tiles
261
0
0
First
Clock Angle
266
0
0
First
Morse Encoder
377
0
0
First
Reverse Roman Numerals
490
0
0
First
How to Find Friends
879
0
0
fibofibo
Feed Pigeons
948
0
0
First
Monkey Typing
2262
0
0
Alice In Wonderland
regex
YAML. List and Comments
3
5
0
First
The Shortest Knight's Path
4
5
0
First
IP Network: Route Summarization
15
5
0
First
Flood Area
48
0
1
Just Recursion
Tree Walker
53
0
0
First
Transposed Matrix
56
5
1
First
Swap Nodes
126
0
0
First
Zigzag Array
170
0
0
BFS
Digits Doublets
210
0
0
First
When is Friday?
226
0
0
First
Middle Characters
241
0
0
First
The Fastest Horse
261
0
0
First
Multiplication Table
317
0
0
First
Long Non Repeat
323
0
0
GitHub
First
Searchlights
1
8
1
First
Simplify Unix Path
5
5
0
First
Barcode Reader
9
2
0
First
Expand Intervals
10
10
1
1-Liner
Expand Intervals
11
10
2
Pair cube-faces are in 4 types of positional relationship on a net
Paper Dice
20
0
0
np.linarg.solve
Shooting Range
22
0
0
First
Area of a Convex Polygon
22
0
0
Aim for efficient search process
Power Plants
29
0
0
First
Create Intervals
34
5
4
First
Cookies
39
4
1
First
Long Repeat Inside
48
3
0
First
Evenly Spaced Trees
89
0
0
First
Shooting Range
91
0
0
First
The Highest Building
96
1
0
First
Broken Clock
132
0
0
First
Painting Wall
155
0
0
First
Power Supply
163
0
0
1-Liner
Cookies
191
0
0
setattr
Solution for Anything
321
0
0
setattr2
Solution for Anything
322
0
0
First
The Most Frequent Weekdays
509
0
0
First
Open Labyrinth
943
0
0
Dropbox
First
Hubspot Amulet
5
3
0
First
Humpty Dumpty Form
13
0
0
First
Nonogram Row
31
0
0
First
On the same path
50
0
0
First
URL Normalization
50
0
0
First
Place Queens
53
0
0
Second
Place Queens
54
0
0
First
Worth of Words
73
4
1
First
Text Formatting
75
0
0
First
Three Points Circle
76
0
0
First
Simple Hashlib
296
0
0
First
Friendly Number
576
0
0
First
Numbers Factory
633
0
0
PyCon TW
First
Fused Cubes
2
6
1
First
Dark Labyrinth
3
5
1
Dynamic Programming
Express Delivery
7
5
0
First
How Much Gold
18
0
0
First
Ryerson Letter Grade
25
4
0
First
Simple Areas
55
5
1
First
Building Visibility
82
0
0
First
Robot Sort
161
0
0
functools.partial()
House Password
179
8
0
First
Digit Stack
193
1
1
Assign substring length to regex as variable
Double Substring
291
0
0
First
Calculate Islands
316
0
0
First
Network Attack
345
0
0
route = itertools.product(*tuple([[0,1]])*(len(pyramid)-1))
Golden Pyramid
460
0
0
Storage
Memoization
Battle Dice
1
5
0
3-axis(x,y,z) Coordinate for Hex system
Hexagon Spiral
4
5
0
Second
Haunted House
4
5
0
First
Exec Quine
19
0
0
Try digging all the neighboring areas until you reach to the other side
Digging a Canal
66
0
0
First
Group Equal consecutive
70
4
0
First
Earth Distances
82
0
0
1-Liner with itertools.groupby
Group Equal consecutive
102
2
1
First
Playfair Cipher
103
0
0
First
English to Braille Translator
104
0
0
First
Restricted Prime
111
0
0
First
Square Spiral
118
0
0
First
The Rows of Cakes
186
0
0
First
Word Pattern
252
0
0
First
Moria Doors
258
0
0
BFS
Saw the Stick
374
0
0
First
Weak Point
598
0
0
First
Skew-symmetric Matrix
687
0
0
HubSpot
First
Triangular Islands
27
0
0
First
Next Birthday
31
1
0
First
Weekly Calendar
32
1
0
First
Square Board
52
0
0
First
Non Empty Lines
56
1
0
Simple
Repeating Decimals
101
0
0
First
New Cities
138
0
0
Recursion
Restricted Sum
219
5
0
First
Number Base
544
2
0
First
The Hamming Distance
1309
0
0
Blizzard
First
Mountain Scape
34
0
0
First
Useless Flights
44
0
0
First
Sudoku Solver
59
0
0
First
Reversed Permutation Index
61
0
0
First
Permutation Index
71
0
0
First
Spaceship Landing Strip
82
0
0
First
Stressful Subject
109
4
1
First
The First Working Day
136
0
0
First
The Angles of a Triangle
138
5
0
First
Radiation Search
158
0
0
First
Stair Steps
184
0
0
First
Unlucky Days
396
0
0
First
Min and Max
502
1
1
First
Weekend Counter
527
0
0
Rock
First
Most Efficient Cutting
45
0
0
First
Sort by Removing
98
0
0
Shelter
First
Pattern Recognition
10
5
1
First
The Nearest Square Number
41
3
2
First
Halloween Monsters
48
0
0
Codeship
First
The Square Chest
352
0
0
First
Pearls in the Box
408
0
0
Hermit
First
Keywords Finder
4
6
1
