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Hot problems
COCI '08 Contest 3 #2 Kemija
COCI '08 Contest 3 #6 Najkraci
APIO '10 P1 - Commando
CCCHK '15 J4 - Where to build my house?
CCC '24 S2 - Heavy-Light Composition
Yet Another Contest 8 P2 - No More Modern Art
2spooky4me
Problem
Category
Points
AC %
Users ▾
ECOO '18 R3 P2 - Vegenère
ECOO
12p
8.5%
6
ECOO '18 R3 P4 - Circular Cities
ECOO
15p
13.1%
6
Triway Cup '18 Summer G - Gu of Love
Seasonal
20
28.6%
6
DS '19 Day 2 P3 Inaho C
Seasonal
35p
13.9%
6
All Pairs Shortest Path
Classics
20p
8.7%
6
CCO '00 P2 - Ransom Note
CCO
12p
7.7%
6
Mock CCO '19 Contest 2 Problem 4 - A Geometry Problem
Mock CCO
5p
9.9%
6
Triway Cup '19 Summer D - Napping
Seasonal
15p
4.1%
6
APIO '18 P2 - Circle Selection
APIO
40p
12.4%
6
OCC '19 G2 - A Guessing Game
Olympiads School
25p
7.3%
6
CERC '07 E - Gates of Logic
ICPC
20p
26.8%
6
COCI '17 Contest 7 #4 Clickbait
COCI
15p
46.7%
6
Wesley's Anger Contest 2 Problem 6 - Haunted Houses
WAC
30
33.3%
6
PIB '20 P4 - Ninjaclasher the Perfect Man
Uncategorized
25p
27.4%
6
COCI '19 Contest 1 #4 Trobojnica
COCI
15p
14.6%
6
ROI '17 P4 - Travel To Metropolis
Uncategorized
25p
10.9%
6
CCO '04 P3 - S and K
CCO
15p
4.5%
6
NOI '99 P3 - Birthday Cake
China NOI
20p
12.7%
6
NOI '12 P5 - Food Festival
China NOI
30p
20.9%
6
NOI '13 P5 - Calligrapher
China NOI
30p
19.4%
6
ICPC NEERC 2010 E - Evacuation Plan
ICPC
15p
12.7%
6
ICPC NEERC 2010 D - Dome of Circus
ICPC
15p
25.7%
6
WC '18 Finals S4 - Posters
Woburn Challenge
20p
24.0%
6
WC '16 Contest 3 S3 - Puzzle Rooms
Woburn Challenge
15p
4.7%
6
WC '18 Finals S5 - Opening Weekend
Woburn Challenge
25p
12.4%
6
WC '15 Contest 3 S4 - Lex Luthor's Landmines
Woburn Challenge
30p
3.6%
6
WC '16 Finals S5 - Bovine Grenadiers
Woburn Challenge
25p
10.3%
6
WC '02 Suicidal P2 - Klingon Roulette
Woburn Challenge
10
15.6%
6
WC '98 P4 - GATTACA
Woburn Challenge
20p
11.6%
6
CCCHK '15 S5 - Can I pass the courses?
CCC
25p
5.0%
6
Super Boggle
Uncategorized
15p
13.3%
6
Pipe Dream
Uncategorized
15
9.1%
6
IOI '12 P4 - Ideal City (Standard I/O)
IOI
25p
46.7%
6
COCI '20 Contest 3 #5 Specijacija
COCI
25p
28.3%
6
COCI '10 Contest 2 #6 Crni
COCI
12p
53.8%
6
COCI '10 Contest 3 #6 Mono
COCI
12p
66.7%
6
COCI '16 Contest 5 #6 Strelice
COCI
20p
7.1%
6
COCI '13 Contest 4 #5 Čokolade
COCI
15p
13.3%
6
JOI '20 Spring Camp Day 2 P2 - Making Friends on Joitter is Fun
JOI
30p
10.3%
6
NOI Winter Camp '09 P1 - A Shortest Path Problem
China NOI
40p
50.4%
6
NOI '15 P6 - Farm
China NOI
25p
6.1%
6
ICPC NWERC 2011 F - Pool Construction
ICPC
25
35.3%
6
UCRPC F21 I - Sphere Mongers
ICPC
15p
5.8%
6
Baltic OI '09 P6 - Monument
Baltic OI
17
8.6%
6
DMOPC '21 Contest 7 P5 - King's Commands
DMOPC
35p
6.3%
6
NOI '22 Multi-Provincial Team Selection P5 - Bracket
China NOI
35p
6.8%
6
NOIP '20 P3 - Game of Moving Ball
China NOI
15p
12.3%
6
JOI '22 Open P3 - School Road
JOI
17p
17.9%
6
NOIP '18 Junior P3 - Shuttle Bus
China NOI
12p
16.3%
6
IOI '22 P6 - Thousands Islands
IOI
30p
3.1%
6
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