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Hot problems
CCC '24 J3 - Bronze Count
COCI '08 Contest 4 #6 Periodni
Fibonacci Sequence
APIO '09 P1 - Digging for Oil
COCI '23 Contest 5 #1 Zlagalica
CCC '24 J5 - Harvest Waterloo
Segment Tree Test
Problem ▾
Category
Points
AC %
Users
WC '18 Contest 2 S4 - Car Convergence Chaos
Woburn Challenge
25p
1.6%
2
WC '18 Contest 2 S3 - Multitasking
Woburn Challenge
15p
14.8%
14
WC '18 Contest 2 S2 - Plutonium
Woburn Challenge
12p
13.4%
73
WC '18 Contest 2 S1 - Laser Grid
Woburn Challenge
7p
57.3%
113
WC '18 Contest 2 J4 - Ammunition
Woburn Challenge
7p
21.0%
49
WC '18 Contest 2 J3 - Seeing Double
Woburn Challenge
3p
58.2%
114
WC '18 Contest 2 J2 - This Message will Self-Destruct
Woburn Challenge
3p
65.8%
221
WC '18 Contest 2 J1 - Alternate Access
Woburn Challenge
3p
63.9%
127
WC '18 Contest 1 S4 - Bad Influence
Woburn Challenge
15p
12.4%
16
WC '18 Contest 1 S3 - Reach for the Top
Woburn Challenge
12p
12.0%
118
WC '18 Contest 1 S2 - Essay Generator
Woburn Challenge
7p
37.3%
219
WC '18 Contest 1 S1 - Inspiration
Woburn Challenge
7p
29.0%
67
WC '18 Contest 1 J4 - Germaphobia
Woburn Challenge
5p
41.5%
70
WC '18 Contest 1 J3 - Comparing Grades
Woburn Challenge
5p
55.3%
133
WC '18 Contest 1 J2 - Making the Cut
Woburn Challenge
3p
67.0%
202
WC '18 Contest 1 J1 - Homework
Woburn Challenge
3p
57.2%
250
WC '17 Finals S5 - Crop Rectangles
Woburn Challenge
25p
1.7%
2
WC '17 Finals S4 - Ultimatum
Woburn Challenge
17p
9.7%
11
WC '17 Finals S3 - Explosive Ordinance Disposal
Woburn Challenge
15p
24.4%
19
WC '17 Finals S2 - Cowmmunication Network
Woburn Challenge
12p
27.3%
51
WC '17 Finals S1 - An Interspecific Army
Woburn Challenge
5p
54.6%
205
WC '17 Finals J2 - Redundant Formations
Woburn Challenge
7p
23.2%
44
WC '17 Finals J1 - Cownterintelligence
Woburn Challenge
5p
43.3%
57
WC '17 Contest 4 S4 - Alpha Nerd (Hard)
Woburn Challenge
25p
33.3%
1
WC '17 Contest 4 S4 - Alpha Nerd
Woburn Challenge
17p
18.0%
8
WC '17 Contest 4 S3 - Guardians of the Cash
Woburn Challenge
15p
26.5%
17
WC '17 Contest 4 S2 - Strange Travels
Woburn Challenge
12p
40.5%
43
WC '17 Contest 4 S1 - Wakandan Sabotage
Woburn Challenge
10p
19.1%
26
WC '17 Contest 4 J4 - Efficiency
Woburn Challenge
5
48.8%
68
WC '17 Contest 4 J3 - The Infinity Stones
Woburn Challenge
3p
57.9%
172
WC '17 Contest 4 J2 - Anger Management
Woburn Challenge
3
53.3%
95
WC '17 Contest 4 J1 - Fight or Flight
Woburn Challenge
3
66.0%
324
WC '17 Contest 3 S4 - Relevant Results
Woburn Challenge
20p
7.8%
5
WC '17 Contest 3 S3 - Down for Maintenance
Woburn Challenge
15p
13.1%
8
WC '17 Contest 3 S2 - GleamingProudChickenFunRun
Woburn Challenge
12p
17.1%
51
WC '17 Contest 3 S1 - Mutual Friends
Woburn Challenge
10p
35.9%
49
WC '17 Contest 3 J4 - Meme Generator
Woburn Challenge
7
20.3%
21
WC '17 Contest 3 J3 - Uncrackable
Woburn Challenge
5
29.0%
2315
WC '17 Contest 3 J2 - Certified Fresh
Woburn Challenge
5
49.1%
79
WC '17 Contest 3 J1 - Like, Comment, and Subscribe!
Woburn Challenge
3
48.6%
142
WC '17 Contest 2 S4 - One Does Not Simply Walk Into Mordor
Woburn Challenge
17p
16.5%
10
WC '17 Contest 2 S3 - Battle of the Pelennor Fields
Woburn Challenge
12p
34.4%
30
WC '17 Contest 2 S2 - Don't Follow the Lights
Woburn Challenge
12p
40.0%
36
WC '17 Contest 2 S1 - Keeping Score
Woburn Challenge
5p
33.3%
51
WC '17 Contest 2 J4 - Entish Translation
Woburn Challenge
7p
27.7%
40
WC '17 Contest 2 J3 - Escaping the Mines
Woburn Challenge
3
42.1%
80
WC '17 Contest 2 J2 - Breeding an Army
Woburn Challenge
3
51.9%
111
WC '17 Contest 2 J1 - The Rings of Power
Woburn Challenge
3
66.9%
302
WC '17 Contest 1 S4 - Change
Woburn Challenge
17p
10.7%
15
WC '17 Contest 1 S3 - Crosscountry Canada
Woburn Challenge
15p
30.3%
33
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