Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % ▾ Users
IOI '09 P6 - Mecho IOI 15 14.8% 324
IOI '94 P2 - The Castle IOI 10 18.8% 127
IOI '94 P4 - The Clocks IOI 10 27.2% 121
IOI '95 P4 - Letter Game IOI 15p 26.9% 33
IOI '95 P5 - Street Race IOI 15p 24.1% 39
IOI '95 P1 - Packing Rectangles IOI 15p 45.3% 26
IOI '96 P3 - Network of Schools IOI 12p 23.7% 83
IOI '96 P4 - Sorting a Three-Valued Sequence IOI 10 31.9% 142
IOI '96 P2 - Job Processing IOI 20p 29.5% 53
IOI '96 P1 - A Game IOI 10 39.2% 270
IOI '96 P5 - Longest Prefix IOI 12 20.8% 112
IOI '97 P4 - Map Labelling IOI 20p 53.2% 3
IOI '97 P3 - The Toxic iShongololo IOI 20p 47.5% 7
IOI '98 P6 - Polygon IOI 15 32.0% 61
IOI '98 P5 - Camelot IOI 15p 40.6% 51
IOI '98 P2 - Starry Night IOI 15 41.3% 28
IOI '98 P3 - Party Lamps IOI 12p 34.0% 168
COCI '09 Contest 4 #5 Kaboom COCI 12 40.2% 27
COCI '09 Contest 4 #6 Palacinke COCI 15 41.2% 24
IOI '00 P4 - Walls IOI 12 35.9% 225
IOI '00 P5 - Post Office IOI 15p 40.6% 183
IOI '00 P2 - Car Parking IOI 15p 17.7% 53
IOI '00 P6 - Building with Blocks IOI 20p 6.6% 7
IOI '02 P1 - The Troublesome Frog IOI 15p 16.5% 78
IOI '02 P5 - Bus Terminals IOI 30p 14.8% 53
IOI '04 P5 - Farmer IOI 15p 13.3% 210
IOI '05 P1 - Garden IOI 20p 21.7% 252
IOI '05 Practice Task 3 - Polish Flag IOI 20p 10.6% 4
IOI '04 P6 - Empodia IOI 30p 16.8% 139
IOI '04 P4 - Phidias IOI 10p 53.6% 887
IOI '01 P6 - Depot IOI 30p 12.1% 39
IOI '04 P1 - Artemis IOI 15p 6.9% 68
IOI '04 P2 - Hermes IOI 15p 23.5% 188
IOI '02 P2 - Utopia Divided IOI 20p 24.5% 91
ICPC NEERC 2010 C - Cactus Revolution ICPC 30p 10.0% 1
ICPC NEERC 2010 F - Factorial Simplification ICPC 15p 26.7% 4
ICPC NEERC 2010 B - Binary Operation ICPC 20p 20.0% 3
ICPC NEERC 2010 K - Graph Oddity ICPC 12p 28.8% 19
ICPC NEERC 2010 E - Evacuation Plan ICPC 15p 12.7% 6
ICPC NEERC 2010 D - Dome of Circus ICPC 15p 25.7% 6
ICPC NEERC 2010 A - Alignment of Code ICPC 7 54.0% 21
ICPC NEERC 2010 H - Hands of Poker ICPC 15p 37.5% 3
COCI '09 Contest 5 #1 Sok COCI 3 53.1% 91
COCI '09 Contest 5 #2 Cudoviste COCI 5 58.1% 111
COCI '09 Contest 5 #3 Kletva COCI 7 20.0% 32
COCI '09 Contest 5 #4 Zuma COCI 15 46.5% 71
COCI '09 Contest 5 #5 Program COCI 12 30.4% 96
COCI '09 Contest 5 #6 Chuck COCI 25p 14.3% 1
QCC P0 - Thermometer Uncategorized 3 54.1% 165
Median Modulo Uncategorized 15p 7.3% 7