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Hot problems
CCC '24 J3 - Bronze Count
CCC '00 S1 - Slot Machines
CCC '19 S2 - Pretty Average Primes
Problem
Category
Points ▾
AC %
Users
IOI '01 P6 - Depot
IOI
30p
12.1%
39
ICPC NEERC 2010 C - Cactus Revolution
ICPC
30p
10.0%
1
CCO '05 P6 - Windows
CCO
30p
14.2%
28
MMM '14 E - English Essay
Uncategorized
30p
1.5%
1
WC '15 Finals S5 - Supply Chain
Woburn Challenge
30p
9.8%
2
WC '15 Contest 3 S4 - Lex Luthor's Landmines
Woburn Challenge
30p
3.6%
6
WC '15 Contest 2 S4 - The Force Awakens (Senior)
Woburn Challenge
30p
6.8%
13
Wesley's Anger Contest 5 Problem 7 - Acorn Delivery System
WAC
30p
2.8%
7
Baltic OI '16 P3 - Spiral
Baltic OI
30p
13.3%
4
Wesley's Anger Contest 5 Problem 6 - Squirrel Cities 2
WAC
30p
7.7%
7
IOI '12 P1 - Pebbling Odometer
IOI
30p
2.9%
4
Root Solver
Uncategorized
30p
3.8%
9
Balkan OI '11 P1 - Two Circles
Balkan OI
30p
11.5%
11
IOI '14 P5 - Friend (Standard I/O)
IOI
30p
18.2%
188
IOI '14 P6 - Holiday (Standard I/O)
IOI
30
12.3%
133
IOI '16 P6 - Aliens (Standard I/O)
IOI
30p
6.1%
63
COCI '20 Contest 1 #3 3D Histogram
COCI
30p
22.2%
5
Wesley's Anger Contest 6 Problem 8 - Crystal Disco
WAC
30p
19.8%
9
UTS Open '21 P7 - April Fools
Uncategorized
30p
8.6%
10
DMOPC '22 Contest 1 P5 - Wesley's Cabins
DMOPC
30p
5.7%
7
COCI '16 Contest 2 #6 Burza
COCI
30p
22.0%
24
JOI '20 Spring Camp Day 2 P2 - Making Friends on Joitter is Fun
JOI
30p
10.3%
6
JOI '20 Spring Camp Day 3 P1 - Constellation 3
JOI
30p
35.7%
5
DMOPC '20 Contest 5 P6 - Top Row (Offline Version)
DMOPC
30p
22.2%
2
ECOO '21 P6 - Problematic Pathways
ECOO
30p
9.2%
4
IOI '21 P1 - Distributing Candies
IOI
30p
13.4%
29
Matchings
POI
30p
15.6%
3
IOI '21 P3 - Fountain Parks
IOI
30p
4.8%
7
IOI '21 P5 - Dungeons Game
IOI
30p
8.1%
9
IOI '21 P6 - Bit Shift Registers
IOI
30p
13.8%
8
DMOPC '21 Contest 2 P6 - Strange Function
DMOPC
30p
13.2%
10
DMOPC '21 Contest 3 P6 - Good Grids
DMOPC
30p
10.0%
7
DMOPC '21 Contest 5 P5 - Permutations & Primes
DMOPC
30p
10.9%
24
COCI '21 Contest 3 #3 Akcija
COCI
30p
4.9%
9
COI '18 #1 Izlet
COCI
30p
0.0%
0
COI '18 #4 Tenis
COCI
30p
15.4%
4
IOI '18 P5 - Highway Tolls
IOI
30p
11.7%
14
Mock CCC '22 2 S5 - Kaguya Wants to go Window Shopping with Kei Shirogane
Mock CCC
30p
5.5%
5
COCI '21 Contest 5 #3 Fliper
COCI
30p
0.0%
0
COI '16 #2 Raspad
COCI
30p
60.0%
3
COI '15 #3 Relay
COCI
30p
20.7%
5
DMOPC '21 Contest 7 P6 - Rainbow Subgraphs
DMOPC
30p
14.6%
8
COI '10 #4 Kamion
COCI
30p
20.0%
1
COI '11 #2 Mjesec
COCI
30p
6.5%
1
COI '12 #2 Rotacije
COCI
30p
12.5%
1
COI '13 #2 Histogrami
COCI
30p
11.1%
1
BPC 1 S6 - Painters
Uncategorized
30p
9.0%
9
COI '13 #3 Mostovi
COCI
30p
12.0%
8
COI '14 #3 Ogledala
COCI
30p
22.2%
2
DMOPC '21 Contest 9 P6 - Shortest Paths
DMOPC
30p
33.3%
10
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