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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 4.4% 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 12.2% 132
IOI '16 P6 - Aliens (Standard I/O) IOI 30p 6.0% 62
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