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Hot problems
CCC '19 S2 - Pretty Average Primes
WC '18 Contest 3 S2 - Gym Tour
UACC 1 P3 - Cheeky Checkers
IOI '06 P2 - Pyramid
Knapsack 4
ACSL '09 Practice P4 - Rank
COCI '12 Contest 3 #3 Malcolm
Problem
Category ▴
Points
AC %
Users
DWITE '09 R4 #1 - Social Media Overload
DWITE
3
65.9%
100
DWITE '12 R5 #4 - Fencing Problems
DWITE
5
15.5%
9
DWITE '11 R5 #5 - Binary Weight
DWITE
5
21.8%
34
DWITE '08 R4 #2 - Tic Tac Win
DWITE
5
43.3%
73
DWITE '09 R7 #1 - Binary Equipment
DWITE
3
43.5%
105
DWITE '10 R2 #1 - Pattern Matching
DWITE
3
40.1%
89
DWITE '12 R2 #3 - Bitstrings
DWITE
3
34.8%
117
DWITE '10 R3 #5 - E-Searching
DWITE
7
42.4%
10
DWITE '09 R5 #2 - Round to Second Prime
DWITE
5
58.5%
250
DWITE '11 R2 #2 - Scratch Card
DWITE
5
29.5%
35
DWITE '10 R4 #5 - Sleepwalking Probabilities
DWITE
5
71.4%
11
DWITE '09 R7 #3 - Oil Spill Area
DWITE
7
53.4%
79
DWITE '12 R5 #5 - Pattern Lock
DWITE
7
47.7%
21
DWITE '07 R4 #2 - And the winner is...
DWITE
5
35.3%
81
DWITE '10 R2 #4 - Fractions to Decimal
DWITE
7
37.7%
18
DWITE '10 R4 #4 - Mountain Hiking
DWITE
7
38.5%
72
DWITE '10 R3 #3 - Dominos Tiling
DWITE
10
46.3%
266
DWITE '07 R3 #5 - Portals
DWITE
7
48.9%
35
DWITE '09 R5 #4 - Kind of like OCR
DWITE
7
46.3%
18
DWITE '11 R1 #4 - C001 Numbers
DWITE
3
28.1%
85
DWITE '10 R1 #4 - Planting Trees
DWITE
7
50.0%
16
DWITE '11 R1 #3 - Take a Walk
DWITE
10
14.5%
18
DWITE '09 R2 #1 - Angles
DWITE
5
46.6%
18
DWITE '07 R3 #3 - Playlist
DWITE
7
43.8%
146
DWITE '07 R1 #2 - Cubes in a Pyramid
DWITE
3p
17.6%
344
DWITE '10 R4 #3 - Binary Weight
DWITE
5
21.3%
36
DWITE '10 R2 #2 - Seating Arrangement
DWITE
5
52.2%
8
DWITE '07 R3 #2 - There's An Essay In My Code
DWITE
5
30.2%
222
DWITE '07 R4 #4 - Shortest path around
DWITE
7
42.3%
186
DWITE '09 R6 #1 - ROT13 Encryption
DWITE
3
48.2%
95
DWITE '08 R1 #5 - Moving Stuff in Boxes
DWITE
7
43.5%
18
DWITE '07 R1 #5 - Velociraptor Maze
DWITE
7
13.3%
42
DWITE '12 R2 #5 - Car Hoppers
DWITE
7
29.8%
46
DWITE '08 R3 #3 - Unicorns and Teaspoons
DWITE
5
67.7%
31
DWITE '07 R5 #2 - Number of factors
DWITE
5
41.8%
331
DWITE '08 R1 #4 - What is this Roman Numeral
DWITE
7
62.0%
155
DWITE '07 R4 #5 - It all adds up
DWITE
7
57.1%
12
DWITE '08 R3 #1 - ASCII Rhombus
DWITE
5
70.3%
47
DWITE '09 R2 #2 - Mini DWITE
DWITE
3
31.7%
90
DWITE '10 R4 #1 - Future Printer
DWITE
3
47.9%
33
DWITE '07 R3 #1 - Yet Another Primes Question
DWITE
5
58.2%
156
DWITE '11 R2 #5 - Portals Check
DWITE
7
13.7%
160
DWITE '09 R1 #3 - That Missing Number
DWITE
5
52.7%
257
DWITE '12 R1 #4 - Trick or Tree'ing
DWITE
5
23.1%
262
DWITE '12 R1 #5 - Haunted House
DWITE
10
44.4%
10
DWITE '10 R5 #5 - Cube World
DWITE
12
26.3%
111
DWITE '10 R3 #2 - Unit rectangles
DWITE
5
54.5%
52
DWITE '11 R5 #2 - Forest Fires
DWITE
7
39.6%
93
DWITE '08 R5 #2 - Kill Dash Nine
DWITE
5
50.0%
21
DWITE '11 R4 #3 - Breaking Bonds
DWITE
7
45.7%
20
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