30
Leonid Selivanov
Last seen 1 month ago
Member for 10 years, 12 days
Difficulty Normal
Initiation
Simple counter (bad solution)
Nearest Value
4
53
8
First
Beginning Zeros
14
16
2
First
First Word (simplified)
25
11
4
Second
Count Digits
33
8
1
First
Multiply (Intro)
48
9
0
First
All the Same
62
10
2
First
Split Pairs
78
6
1
First
Replace First
95
6
0
Third
Max Digit
107
6
2
First
End Zeros
122
5
1
Second
Is Even
132
5
0
First
Acceptable Password I
132
4
2
Spliting
Between Markers (simplified)
138
5
3
Correct Sentence
Correct Sentence
176
5
2
First
Backward String
214
5
3
First
All Upper I
222
3
2
First
The Most Frequent
264
2
0
First
Count Digits
265
2
1
First
Is Even
289
2
1
First
Remove All Before
317
2
0
Second
Sum Numbers
364
2
0
First
Number Length
423
1
2
4th
Max Digit
447
2
1
First
Sum Numbers
474
1
0
First
Easy Unpack
475
2
3
Second
Max Digit
481
1
1
Third
Sum Numbers
639
0
1
First
Max Digit
687
0
2
Home
datetime: strptime, strftime
Date and Time Converter
5
27
1
First
Popular Words
8
5
3
Second Index
Second Index
11
7
2
First
Sort Array by Element Frequency
26
15
1
Between Markers
Between Markers
52
1
1
Three Words
Three Words
78
4
2
Just join and replace
Right to Left
111
19
0
Second
Sort Array by Element Frequency
131
6
1
First
Morse Decoder
147
4
0
Second
Second Index
167
5
2
First
Days Between
219
7
2
First
Split List
264
2
1
First
Backward Each Word
329
1
0
First
Bigger Price
345
4
1
Second
Backward Each Word
368
1
1
First
Even the Last
392
5
2
First
Non-unique Elements
420
9
0
Second
Popular Words
688
1
1
First Word
First Word
873
0
0
Sun Angle
Sun Angle
1099
0
1
First
Pawn Brotherhood
2716
0
0
Electronic Station
numpy
Find Sequence
7
4
0
First
Unix Match. Part 1
9
13
1
First
Sort by Extension
16
11
0
First
Words Order
17
10
1
First
Boolean Algebra
26
17
1
First
Verify Anagrams
93
1
0
First
Brackets
96
13
0
First
Ascending List
102
4
0
Second
Similar Triangles
116
2
0
Second
Ascending List
144
3
0
First
All Upper II
157
2
0
First
Digits Multiplication
169
9
1
First
Similar Triangles
201
0
0
recursion
Can You Pass?
219
0
0
Second
Unix Match. Part 1
247
0
0
Second
Boolean Algebra
254
3
0
First
Surjection Strings
307
0
0
Scientific Expedition
First
YAML. Simple Dict
4
4
0
Second
YAML. Simple Dict
8
12
1
First
Letter Queue
9
13
2
First
YAML. More Types
11
10
0
First
Time Converter (24h to 12h)
15
5
0
First
Sum by Type
18
0
2
Second
Sum by Type
24
0
2
datetime
Time Converter (24h to 12h)
27
15
2
First
Caps Lock
65
4
0
First
Follow Instructions
72
6
0
First
Call to Home
104
2
1
Second
Remove Accents
112
1
1
First
Conversion from CamelCase
130
4
0
sorted() and abs()
Absolute Sorting
136
15
1
First
Conversion into CamelCase
141
4
0
First
Secret Message
181
9
1
First
I Love Python!
190
8
1
short and unreadable
Remove Accents
219
0
0
First
Striped Words
275
2
0
First
Common Words
283
4
2
First
Goes Right After
341
0
0
First
The Hidden Word
440
0
0
First
Pangram
482
2
0
First
Morse Clock
619
0
0
First
Bird Language
916
0
0
Second
The Most Wanted Letter
1171
1
2
Second
Secret Message
1372
1
0
lower islower ascii_lowercase
Pangram
1488
0
0
First
Cipher Map
1608
0
0
The Most Wanted Letter
The Most Wanted Letter
6198
0
0
O'Reilly
First
Chunk
22
6
1
First
Frequency Sorting
28
9
0
First
Replace Last
37
7
0
Flatten a List
Flatten a List
47
2
0
First
Lightbulb Start Watching
54
3
1
Second
Count Inversions
55
5
0
First
Compress List
72
4
0
First
How Deep
104
1
1
First
Median of Three
106
2
0
First
Reverse Every Ascending
107
1
0
First
Lightbulb Intro
118
2
0
First
Lightbulb End Watching
123
0
0
First
Remove All After
126
3
0
sorted and pop
Sort Except Zero
176
2
0
First
Determine the Order
178
0
0
First
The Flat Dictionary
182
0
1
First
Time Converter (12h to 24h)
203
0
0
First
Index Power
211
8
1
Second
Remove All After
214
2
1
First
Count Inversions
259
1
0
First
Majority
295
1
1
Second
Xs and Os Referee
441
3
0
First
Xs and Os Referee
4567
0
0
First
Median
8320
0
0
Incinerator
First
The Warriors
2
10
4
inheritance
Army Units
12
0
0
First
Hacker Language
19
4
1
First
Microwave Ovens
24
4
0
First
3 Chefs
25
5
0
First
Geometry Figures
37
2
0
First
Army Battles
51
4
1
First
Party Invitations
63
1
2
not clear not DRY just for questpoints
Dialogues
72
0
0
First
Friends
80
3
1
First
Every Person is Unique
81
1
0
First
The Defenders
85
2
0
First
Capital City
100
0
0
First
Multicolored Lamp
127
3
0
First
Voice TV Control
159
0
1
First
The Vampires
228
0
1
First
Building Base
251
1
1
First
Text Editor
256
0
0
Mine
ascii_lowercase/maketrans/translate
Caesar Cipher (decryptor)
12
5
0
First
Chess Knight
20
4
0
Best Stock
Best Stock
26
3
1
First
Achilles and the Tortoise
30
6
1
First
Can Balance
34
5
2
First
Caesar Cipher (encryptor)
36
9
0
For any number of numbers with sorted()
The Greatest Common Divisor
56
5
0
First
Bigger Together
114
0
0
First
Currency Style
169
0
0
First
Moore Neighbourhood
183
5
0
First
Binary Count
196
7
1
First
Cut Sentence
231
0
4
divmod
Fizz Buzz
661
2
3
First
Fizz Buzz
4872
0
1
Ice Base
First (incorrect)
Count Chains
47
0
2
First
Monkey Typing
51
9
0
First
Largest Rectangle in a Histogram
52
5
2
First
Long Repeat
56
8
1
The Most Numbers
The Most Numbers
57
5
1
Second
Morse Encoder
63
5
1
First
Morse Encoder
108
3
0
simple
Count Chains
110
0
1
First
Find Quotes
223
0
0
First
Oil Pie
225
0
2
One while and some min()
Feed Pigeons
293
2
0
First
Clock Angle
377
0
0
First
Reverse Roman Numerals
479
0
0
First
How to Find Friends
859
0
0
First
Roman Numerals
1009
1
1
Second
The Most Numbers
4260
0
0
Alice In Wonderland
First
Swap Nodes
35
6
0
First
The Fastest Horse
46
4
0
First
Multiplication Table
50
4
1
First
Middle Characters
60
3
0
recursion
Tree Walker
60
0
0
First
Long Non Repeat
86
2
0
First
Transposed Matrix
110
3
1
First
Zigzag Array
133
0
0
First
IP Network: Route Summarization
160
0
0
First
When is Friday?
186
0
0
First
Digits Doublets
212
0
0
GitHub
First
Cookies
13
8
1
First
Long Repeat Inside
19
0
0
First
Expand Intervals
23
6
1
First
The Highest Building
27
6
2
First
Simplify Unix Path
34
0
0
First
Barcode Reader
41
0
0
Simple cycles and endswith
The End of Other
55
6
0
First
Evenly Spaced Trees
101
0
0
First
The Most Frequent Weekdays
127
2
0
First
Broken Clock
134
0
0
First
Merge Intervals
170
0
0
First
Create Intervals
323
0
1
First
Solution for Anything
323
0
0
Recursion
Open Labyrinth
934
0
0
Dropbox
First
Simple Hashlib
76
3
1
First
Worth of Words
161
0
0
First
Numbers Factory
220
1
1
First
The Longest Palindromic
234
1
1
Second
Worth of Words
408
0
0
First
Speech Module
5220
0
0
PyCon TW
First
Double Substring
4
5
1
First
Sum Consecutives
51
2
0
First
Simple Areas
57
5
3
Recursion
Golden Pyramid
96
4
1
First
Digit Stack
112
2
1
match-case
Digit Stack
621
0
0
Second (Boolean)
House Password
1046
2
2
"House Password"
House Password
10221
0
0
Storage
First
Skew-symmetric Matrix
38
10
1
First
Restricted Prime
46
1
0
First
Group Equal consecutive
67
4
1
Second
Restricted Prime
114
0
0
First
Saw the Stick
378
0
3
HubSpot
First
New Cities
2
20
4
The index dictionary
Triangular Islands
14
1
2
First
Node Disconnected Users
17
5
0
Second
New Cities
28
3
0
First
Weekly Calendar
37
1
0
Second
Non Empty Lines
38
2
0
First
Non Empty Lines
45
1
0
First
City's Happiness
77
0
0
Second
City's Happiness
90
0
0
First
Number Base
223
5
1
First
The Hamming Distance
255
3
5
First
Restricted Sum
279
4
1
Blizzard
First
Weekend Counter
12
8
0
First
Rectangles Union
16
6
2
First
Connect Stars
22
0
0
First
Stair Steps
30
5
1
datetime
Unlucky Days
40
5
0
First
The First Working Day
59
1
0
Second
The First Working Day
60
1
0
First
Stressful Subject
102
4
3
math: acos, degrees
The Angles of a Triangle
187
4
1
First
Min and Max
1335
0
0
Rock
First
Home Coming
1
5
2
binary search
Super Root
20
5
1
Real removing :)
Sort by Removing
28
2
2
First
CheckSum
169
0
0
First
Parity Bit Generator
210
0
2
Shelter
First
The Nearest Square Number
43
3
1
First
ADFGVX Cipher
140
0
0
First
Ghosts Age
152
0
0
Codeship
First
Probably Dice
283
0
0
Recursion
Pearls in the Box
396
0
0
Hermit
First
The Good Radix
12
5
0
most simple
Backspace Apply
21
0
0
First
Stock Profit
27
0
0
cleaning func
Unique Email Addresses
41
0
0
Not On Map
First
Most Wanted Letter
11
5
0
First
Aggregate and Count
50
0
0