36
Nikos Papaspyrou
https://www.softlab.ntua.gr/~nickie/
Last seen 10 months ago
Member for 10 years, 6 months, 28 days
Difficulty Normal
Initiation
Difference in lengths
End Zeros
13
3
0
Elementary
Number Length
185
0
0
Elementary
Acceptable Password I
194
0
0
Elementary
First Word (simplified)
398
0
0
Elementary
Easy Unpack
796
0
0
Elementary
Multiply (Intro)
847
0
0
Home
Two sums
Even the Last
3
22
9
After Tubis
Three Words
3
16
5
Datetime 1-liner
Days Between
8
3
0
All strings
Three Words
80
1
0
First
Non-unique Elements
84
37
15
Straightforward
Right to Left
112
18
3
Just count
Pawn Brotherhood
114
15
1
Electronic Station
One-liner
Verify Anagrams
1
44
9
Simple DP
Mathematically Lucky Tickets
1
24
4
Straightforward
Digits Multiplication
2
42
10
Using groupby
Find Sequence
3
64
3
Second
Verify Anagrams
7
3
3
Operators
Boolean Algebra
28
3
0
Flood-fill
Can You Pass?
40
2
5
Stack
Brackets
46
3
0
Test and scan
Words Order
177
2
0
Elementary
Acceptable Password II
408
0
0
Scientific Expedition
1-liner join
Secret Message
1
32
4
Refactored
The Hidden Word
3
9
7
qria's shorter
Striped Words
6
9
0
Regex short
Bird Language
9
8
2
Obvious
Absolute Sorting
9
6
0
Transpose
The Hidden Word
9
3
2
Straightforward
Call to Home
11
9
0
1-liner re
Secret Message
12
6
0
One-liner
Pangram
25
2
0
Obvious
Common Words
25
2
0
First
Striped Words
39
13
0
Pros and cons
I Love Python!
52
2
1
Fixed 1l, 1t
The Most Wanted Letter
63
4
1
First
Morse Clock
253
0
0
Using index
Goes Right After
386
0
0
First
The Most Wanted Letter
390
0
0
O(n) but finish early
Pangram
664
0
2
O'Reilly
Ignalion's twist
Flatten a List
1
234
16
O(n) select
Median
1
39
17
O(NlogN)
Count Inversions
2
24
5
Modified subset sum
Loading Cargo
6
0
0
Using exception
Xs and Os Referee
8
13
5
Functional
Flatten a List
8
6
2
Fixed topo sort
Determine the Order
15
9
0
Boolean ops
Index Power
23
3
1
All size and geometry
Cipher Crossword
31
0
0
Functional generator
Flatten a List
688
0
1
Using sort
Median
941
1
4
Incinerator
Set of edges
Friends
41
4
3
Repr using dict
Building Base
113
2
0
Mine
String arithmetic
Fizz Buzz
1
267
23
Straightforward
Moore Neighbourhood
3
75
11
Spanning trail cycle
Disposable Teleports
15
4
0
Straigthforward
The Greatest Common Divisor
54
0
0
Obvious
Binary Count
58
0
0
First
Determinant
77
0
0
Straightforward
Achilles and the Tortoise
163
0
0
Ice Base
Do the math, O(1)
Feed Pigeons
1
92
11
Union-find
How to Find Friends
1
14
0
First
Counting Tiles
2
31
4
Straightforward
The Most Numbers
2
20
1
First
Roman Numerals
27
7
0
Sum find
Monkey Typing
70
0
0
Straightforward
Clock Angle
167
0
0
Alice In Wonderland
One liner
Multiplication Table
5
6
2
Shortest path
Digits Doublets
23
2
0
BFS
The Shortest Knight's Path
29
2
0
First
Transposed Matrix
480
0
0
GitHub
Fixed sort and search
Painting Wall
2
24
2
Using a trie
The End of Other
2
11
1
1-liner
Area of a Convex Polygon
2
7
1
Straightforward
Shooting Range
5
10
0
Set permutations
The End of Other
6
10
5
Hijack ops
Solution for Anything
26
7
0
Sort and search
Painting Wall
31
2
5
Triangle split
Area of a Convex Polygon
47
1
1
Labyrinth optimal
Open Labyrinth
79
6
2
Dropbox
Gauss & mod
Hubspot Amulet
3
9
0
2-liner
Numbers Factory
3
7
1
Compressed
Friendly Number
11
1
0
First
Numbers Factory
16
16
1
Obvious
The Best Number Ever
22
11
0
Look it up!
Humpty Dumpty Form
25
6
5
State search
Place Queens
31
0
0
First
Speech Module
117
7
3
Do the math
Three Points Circle
127
0
0
Straightforward
Simple Hashlib
130
0
0
Reversed enumerate
Friendly Number
195
0
0
PyCon TW
Flood fill
Calculate Islands
1
56
4
Functional DP
Golden Pyramid
1
39
7
Dijkstra
Network Attack
2
4
0
FP compressed
Network Attack
3
5
1
Dijkstra variation
Express Delivery
4
5
0
Compressed
Digit Stack
6
9
0
Simple DP
Golden Pyramid
7
17
9
Straightforward
Simple Areas
10
12
3
Bunny fixed
How Much Gold
25
1
1
Gauss
How Much Gold
34
0
2
O(N^2)
Building Visibility
61
0
1
Using re
House Password
89
3
0
Straightforward
Digit Stack
127
1
2
Without re
House Password
3478
0
1
Storage
Bunny's simplified
The Rows of Cakes
1
66
7
Fast enough for now
Saw the Stick
1
31
4
Veky style
The Rows of Cakes
2
6
2
Some cheating, O(sqrt(n))
Restricted Prime
3
15
0
Alpha beta pruning
Haunted House
3
9
3
Simple Dijkstra
Digging a Canal
7
1
0
1-liner
Skew-symmetric Matrix
10
3
0
zip_longest
Word Pattern
10
2
1
Straightforward 1-liner
Weak Point
18
1
0
Just count!
The Rows of Cakes
31
3
2
First
Restricted Prime
47
0
0
Don't think
Moria Doors
51
1
0
HubSpot
Deja vu
Number Base
1
81
10
Straightforward
The Hamming Distance
1
47
0
Max flow
Supply Stations
2
4
0
Least ready first
Auto Painting
9
4
1
Recursive
Restricted Sum
366
2
0
Blizzard
Simple math
Weekend Counter
1
12
0
Simple dynamic
Stair Steps
1
10
0
Flood fill
Radiation Search
4
11
0
Fast enough
Sudoku Solver
5
5
0
Simple O(N^2*M^2)
Spaceship Landing Strip
18
2
0
Doc string 1-liner
Palindromic Palindrome
19
1
1
Flood-fill
Safe Coasts
40
0
0
Straightforward
Min and Max
62
15
8
Simple math
The Angles of a Triangle
224
2
1
Rock
2-liner
CheckSum
3
6
2
Straightforward
CheckSum
5
8
0
GCD and BFS
Water Jars
5
0
0
First
Web Log Sessions
11
0
0
Simple binary search
Super Root
115
0
1
Shelter
Straightforward
Pattern Recognition
1
53
7
Simulation with generators
Ghosts Age
34
11
1
Codeship
Do the math
Pearls in the Box
1
103
6
Two rules
Minesweeper
1
17
5
Straightforward
Behind 2048
1
12
0
Compressed
Behind 2048
3
7
2
Simple A*
Snake Lite
3
4
0
Straightforward
The Square Chest
5
13
1
Simple BFS
The 88th Puzzle
6
5
0
Recursive
Pearls in the Box
8
3
0
Dijkstra
Bats Bunker
9
4
1
A*, misplaced as heuristic
8 Puzzle
64
0
0
First
The Square Chest
240
0
0
Hermit
First
The Good Radix
1
78
6
One liner
The Good Radix
1
28
0
Splitter
Mono Captcha
2
16
0
Brute force
Reverse Engineer
2
7
4
General & pessimistic
Ore In The Desert
2
3
3
Full parser
Simplification
3
3
1
ReFuncPuzzle
Keywords Finder
3
2
1
Fixed wannabe optimal
Colder-Warmer
5
3
1
Brute force
Break Rings
6
25
2
Straightforward
Keywords Finder
7
3
4
Simple BFS
Anagrams By Stacks
8
2
4
Wannabe optimal
Colder-Warmer
18
0
2
Watchtower
Simple recursion
Numbered Triangles
1
36
10
7 or fewer
Bulls and Cows
1
9
4
Church at work
Funny Addition
3
23
1
Graham's tweaked
Convex Hull
9
3
0
Play it safe
Number Guess
23
0
0
Backtracking with exceptions
Magic Square
27
0
0
First
Funny Addition
206
2
2
Escher
List partition
The Ship Teams
62
5
1
