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Hot problems
WC '17 Contest 3 J3 - Uncrackable
IOI '04 P4 - Phidias
Knapsack 4
DMOPC '18 Contest 1 P2 - Sorting
IOI '07 P4 - Miners
IOI '94 P1 - The Triangle
Baltic OI '15 P3 - Network
Problem ▾
Category
Points
AC %
Users
WC '99 P6 - Fight Club
Woburn Challenge
10
23.8%
38
WC '99 P5 - Good Will Hunting
Woburn Challenge
5
16.8%
86
WC '99 P4 - Goldfinger
Woburn Challenge
5
33.6%
97
WC '99 P3 - The Godfather
Woburn Challenge
5
29.3%
36
WC '99 P2 - Mission Impossible
Woburn Challenge
7
18.5%
56
WC '99 P1 - The Matrix
Woburn Challenge
7
33.9%
44
WC '98 P6 - Return of the Plachta
Woburn Challenge
5
23.5%
145
WC '98 P5 - Y2K
Woburn Challenge
10
33.8%
31
WC '98 P4 - GATTACA
Woburn Challenge
20p
11.6%
6
WC '98 P3 - Do or Do Not
Woburn Challenge
10
35.3%
22
WC '98 P2 - The Hutts Strike Back
Woburn Challenge
10
45.5%
8
WC '98 P1 - Optical Recognition
Woburn Challenge
12
22.2%
4
WC '97 P5 - Encoding Grid
Woburn Challenge
20
6.3%
1
WC '97 P4 - Typing
Woburn Challenge
5
30.5%
248
WC '97 P3 - Stacks of Flapjacks
Woburn Challenge
15p
31.4%
8
WC '97 P2 - Power of Cryptography
Woburn Challenge
20
12.1%
12
WC '97 P1 - Searching Quickly
Woburn Challenge
10
30.0%
10
WC '96 P6 - Bases Multiplication
Woburn Challenge
5
40.0%
202
WC '96 P5 - Plentiful Paths
Woburn Challenge
7
36.7%
191
WC '96 P3 - Hidden Geography
Woburn Challenge
5
32.0%
121
WC '96 P2 - Row and Column
Woburn Challenge
7
13.3%
35
WC '96 P1 - Fishes in a Tank
Woburn Challenge
5
24.7%
39
WC '95 P5 - Factorial Power
Woburn Challenge
5
27.9%
123
WC '95 P4 - Wildcard
Woburn Challenge
10
40.4%
31
WC '95 P3 - Smallest Latin Square
Woburn Challenge
10
38.8%
46
WC '95 P2 - Round Numbers
Woburn Challenge
12p
8.7%
38
WC '95 P1 - Coded Message
Woburn Challenge
7
9.0%
54
WC '18 Finals S5 - Opening Weekend
Woburn Challenge
25p
12.4%
6
WC '18 Finals S4 - Posters
Woburn Challenge
20p
24.0%
6
WC '18 Finals S3 - Screen Time
Woburn Challenge
15p
19.8%
23
WC '18 Finals S2 - Top Billing
Woburn Challenge
12p
36.0%
43
WC '18 Finals S1 - Behind the Scenes
Woburn Challenge
7p
38.9%
46
WC '18 Finals J2 - Script Doctor
Woburn Challenge
5p
29.2%
53
WC '18 Finals J1 - Conditional Contracts
Woburn Challenge
5p
39.7%
169
WC '18 Contest 4 S4 - Super Luigi Odyssey
Woburn Challenge
25p
9.2%
4
WC '18 Contest 4 S3 - Dance Royale
Woburn Challenge
15p
19.2%
32
WC '18 Contest 4 S2 - Farming Simulator
Woburn Challenge
15p
34.4%
55
WC '18 Contest 4 S1 - World of StarCraft
Woburn Challenge
10p
48.8%
247
WC '18 Contest 4 J4 - Your Name, Please
Woburn Challenge
7p
13.6%
14
WC '18 Contest 4 J3 - Inventory
Woburn Challenge
5p
26.8%
31
WC '18 Contest 4 J2 - Life Insurance
Woburn Challenge
3p
50.2%
131
WC '18 Contest 4 J1 - A Fistful of Quarters
Woburn Challenge
3p
48.1%
130
WC '18 Contest 3 S4 - Holey Travels
Woburn Challenge
20p
1.0%
1
WC '18 Contest 3 S3 - Counterpicking
Woburn Challenge
15p
7.8%
13
WC '18 Contest 3 S2 - Gym Tour
Woburn Challenge
12p
41.1%
131
WC '18 Contest 3 S1 - The Perfect Team
Woburn Challenge
10p
49.8%
69
WC '18 Contest 3 J4 - Leveling Up
Woburn Challenge
7p
32.1%
84
WC '18 Contest 3 J3 - R
Woburn Challenge
3p
72.2%
89
WC '18 Contest 3 J2 - Net Weight
Woburn Challenge
5p
45.9%
257
WC '18 Contest 3 J1 - An Honest Day's Work
Woburn Challenge
3p
57.6%
3127
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