Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % ▾ Users
CCC '07 J5 - Keep on Truckin' CCC 7 19.7% 1069
CCC '10 S5 - Nutrient Tree CCC 20p 19.6% 266
CCC '21 J4 - Arranging Books CCC 7p 19.6% 1317
CCC '05 S5 - Pinball Ranking CCC 12p 19.5% 738
CCC '17 S5 - RMT CCC 20p 19.2% 243
CCC '01 S4 - Cookies CCC 10 19.1% 414
CCC '02 S2 - Fraction Action CCC 5 18.9% 1878
CCC '06 S5 - Origin of Life CCC 15 18.8% 117
CCC '99 S4 - A Knightly Pursuit CCC 12 18.7% 348
CCC '15 S3 - Gates CCC 10p 18.7% 1775
CCOQR '16 - Through A Maze Darkly CCC 20p 18.3% 103
CCC '22 S3 - Good Samples CCC 10p 18.3% 651
CCC '11 S5 - Switch CCC 12p 18.3% 413
CCC '10 S3 - Firehose CCC 15p 18.2% 645
CCC '24 S3 - Swipe CCC 10p 17.9% 166
CCC '19 S5 - Triangle: The Data Structure CCC 20p 17.8% 357
CCC '14 S5 - Lazy Fox CCC 20p 17.8% 454
CCCHK '15 J4 - Where to build my house? CCC 5 17.5% 247
CCC '00 S3 - Surfing CCC 7 17.5% 620
CCC '03 S5 - Trucking Troubles CCC 10p 17.5% 681
CCC '03 S2 - Poetry CCC 5 17.3% 1453
CCC '18 S4 - Balanced Trees CCC 15p 16.8% 574
CCC '13 S4 - Who is Taller? CCC 7 16.8% 1227
CCC '98 S3 - Mars Rover CCC 7p 16.5% 161
CCC '99 S3 - Divided Fractals CCC 7 16.5% 68
CCC '23 S5 - The Filter CCC 20p 16.3% 86
CCC '99 S5 - Letter Arithmetic CCC 12 16.0% 77
CCCHK '15 S3 - Symmetric Cross CCC 12p 15.8% 19
CCC '23 S3 - Palindromic Poster CCC 10p 15.4% 420
CCC '99 S2 - Year 2000 CCC 7 14.6% 105
CCC '18 S3 - RoboThieves CCC 12p 14.2% 1133
CCC '17 S4 - Minimum Cost Flow CCC 17p 14.1% 770
CCC '10 S1 - Computer Purchase CCC 5 14.1% 1317
CCC '02 S5 - Follow the Bouncing Ball CCC 10 13.8% 190
CCCHK '15 S1 - Finding number of pairs CCC 7p 13.7% 142
CCC '19 S3 - Arithmetic Square CCC 12p 13.6% 500
CCC '98 S5 - Mountain Passage CCC 10 13.0% 148
CCC '20 S2 - Escape Room CCC 10p 12.8% 1690
CCC '97 S4 - Dynamic Dictionary Coding CCC 5 11.8% 218
CCC '00 J1 - Calendar CCC 5 11.1% 1351
CCC '96 S3 - Pattern Generator CCC 5 10.7% 342
CCCHK '08 J4 - Tic-tac-toe CCC 5p 10.5% 101
CCC '97 S3 - Double Knockout Competition CCC 5 10.1% 158
CCC '97 S5 - Long Division CCC 10 9.9% 65
CCC '24 S5 - Chocolate Bar Partition CCC 20p 9.9% 20
CCCHK '15 J5 - No friends in the same group. CCC 15p 9.8% 33
CCC '98 S4 - Lottery CCC 10 9.6% 92
CCC '20 S3 - Searching for Strings CCC 12p 8.9% 840
CCC '02 S4 - Bridge Crossing (Hard) CCC 20 8.6% 32
CCC '01 S2 - Spirals (Exact Version) CCC 7 8.3% 105