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Hot problems
WC '01 P3 - Back to the Future
COCI '08 Contest 3 #6 Najkraci
CCC '16 S4 - Combining Riceballs
GFSSOC '15 Winter S1 - OR-deal
ECOO '20 P2 - Online Shopping
IOI '11 P2 - Race
CCC '20 S4 - Swapping Seats
Problem ▾
Category
Points
AC %
Users
DWITE '09 R4 #3 - Moving at the same time
DWITE
5
31.1%
57
DWITE '09 R4 #2 - Verifying Distributed Work
DWITE
3
31.1%
43
DWITE '09 R4 #1 - Social Media Overload
DWITE
3
65.9%
100
DWITE '09 R3 #5 - Up To Four Colours
DWITE
12
61.3%
37
DWITE '09 R3 #4 - Spiral Out
DWITE
7
69.0%
17
DWITE '09 R3 #3 - Binary Test Strings 2
DWITE
5
73.2%
27
DWITE '09 R3 #2 - Rounding to Fibonacci
DWITE
5
63.4%
171
DWITE '09 R3 #1 - Quiz Time
DWITE
3
46.1%
97
DWITE '09 R2 #5 - Portals Redux
DWITE
12
39.7%
23
DWITE '09 R2 #4 - Breadth First Not Quite Tree
DWITE
5
33.1%
151
DWITE '09 R2 #3 - Binary Test String
DWITE
5
36.2%
38
DWITE '09 R2 #2 - Mini DWITE
DWITE
3
31.7%
90
DWITE '09 R2 #1 - Angles
DWITE
5
46.6%
18
DWITE '09 R1 #5 - Running In Circles
DWITE
7
19.9%
317
DWITE '09 R1 #4 - My First True Letter
DWITE
3
38.1%
104
DWITE '09 R1 #3 - That Missing Number
DWITE
5
52.7%
257
DWITE '09 R1 #2 - Word Scrambler
DWITE
5
57.0%
225
DWITE '09 R1 #1 - iProfits
DWITE
3
49.3%
62
DWITE '08 R5 #5 - Nash in Traffic
DWITE
10
25.8%
6
DWITE '08 R5 #4 - Wiring the Server Room
DWITE
15
22.6%
12
DWITE '08 R5 #3 - Working Directory
DWITE
7
45.9%
16
DWITE '08 R5 #2 - Kill Dash Nine
DWITE
5
50.0%
21
DWITE '08 R5 #1 - Baby Diff
DWITE
3
56.7%
148
DWITE '08 R4 #5 - Blow your mind with 4th D
DWITE
7
19.7%
13
DWITE '08 R4 #4 - Shortest path around v2
DWITE
7
46.9%
158
DWITE '08 R4 #3 - Secret party
DWITE
7
37.9%
54
DWITE '08 R4 #2 - Tic Tac Win
DWITE
5
38.9%
74
DWITE '08 R4 #1 - Four player Pong with no players
DWITE
7
71.9%
58
DWITE '08 R3 #5 - Now in 3D
DWITE
7
77.6%
27
DWITE '08 R3 #4 - Time for change
DWITE
7
61.2%
269
DWITE '08 R3 #3 - Unicorns and Teaspoons
DWITE
5
67.7%
31
DWITE '08 R3 #2 - Wordcount++
DWITE
5
35.6%
437
DWITE '08 R3 #1 - ASCII Rhombus
DWITE
5
70.3%
47
DWITE '08 R2 #5 - Water damage
DWITE
7
22.4%
32
DWITE '08 R2 #4 - Big shiny tunes
DWITE
7
63.0%
83
DWITE '08 R2 #3 - My drink is made of cubes
DWITE
5
38.1%
21
DWITE '08 R2 #2 - My favourite digit
DWITE
3
59.2%
300
DWITE '08 R2 #1 - My shiny digital key
DWITE
3
38.8%
62
DWITE '08 R1 #5 - Moving Stuff in Boxes
DWITE
7
43.5%
18
DWITE '08 R1 #4 - What is this Roman Numeral
DWITE
7
62.0%
155
DWITE '08 R1 #3 - School's a maze
DWITE
7
49.1%
47
DWITE '08 R1 #2 - Simple Checksum
DWITE
3
51.0%
103
DWITE '08 R1 #1 - LaNDscAPE ii
DWITE
3
64.1%
54
DWITE '07 R5 #5 - Tetris!
DWITE
7
25.9%
6
DWITE '07 R5 #4 - Train ride
DWITE
7
53.4%
37
DWITE '07 R5 #3 - Parity bit
DWITE
5
70.2%
103
DWITE '07 R5 #2 - Number of factors
DWITE
5
41.8%
331
DWITE '07 R5 #1 - I heart you
DWITE
3
31.4%
74
DWITE '07 R4 #5 - It all adds up
DWITE
7
57.1%
12
DWITE '07 R4 #4 - Shortest path around
DWITE
7
42.1%
188
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