Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % Users
Stingy Candyman Uncategorized 10 24.2% 49
Caporegime Uncategorized 10p 28.1% 37
Carnival Game Uncategorized 7 28.4% 61
Casino Crisis Uncategorized 12p 35.2% 80
Castle Invasion Uncategorized 10p 24.2% 173
CCC '00 J1 - Calendar CCC 5p 11.4% 1666
CCC '00 J2 - 9966 CCC 3p 35.6% 2357
CCC '00 S1 - Slot Machines CCC 5p 27.5% 5567
CCC '00 S2 - Babbling Brooks CCC 7p 34.7% 3149
CCC '00 S3 - Surfing CCC 7p 18.3% 755
CCC '00 S4 - Golf CCC 7p 24.3% 2511
CCC '00 S5 - Sheep and Coyotes CCC 10p 4.6% 227
CCC '00 S5 - Sheep and Coyotes (Hard) CCC 20 6.5% 30
CCC '01 J1 - Dressing Up CCC 3p 47.4% 3301
CCC '01 J2 - Mod Inverse CCC 3p 43.6% 2991
CCC '01 S1 - Keeping Score CCC 5p 33.0% 1786
CCC '01 S2 - Spirals CCC 5p 39.9% 1083
CCC '01 S2 - Spirals (Exact Version) CCC 7 9.3% 146
CCC '01 S3 - Strategic Bombing CCC 7p 39.3% 1662
CCC '01 S4 - Cookies CCC 10p 19.3% 483
CCC '01 S5 - Post's Correspondence Problem CCC 10p 29.8% 363
CCC '02 J1 - 0123456789 CCC 3p 6.1% 957
CCC '02 J1 - 0123456789 (Hard) CCC 5 13.2% 30
CCC '02 J2 - AmeriCanadian CCC 3p 26.2% 4789
CCC '02 S1 - The Students' Council Breakfast CCC 5p 40.0% 1742
CCC '02 S2 - Fraction Action CCC 5p 19.8% 2172
CCC '02 S3 - Blindfold CCC 15p 6.9% 198
CCC '02 S4 - Bridge Crossing CCC 10p 37.8% 1030
CCC '02 S4 - Bridge Crossing (Hard) CCC 20p 8.5% 43
CCC '02 S5 - Follow the Bouncing Ball CCC 10p 11.3% 182
CCC '03 J1 - Trident CCC 3p 29.4% 2793
CCC '03 J2 - Picture Perfect CCC 3p 24.8% 1899
CCC '03 S1 - Snakes and Ladders CCC 5p 21.0% 3414
CCC '03 S2 - Poetry CCC 5p 18.1% 1695
CCC '03 S3 - Floor Plan CCC 7p 28.1% 2229
CCC '03 S4 - Substrings CCC 15p 8.0% 440
CCC '03 S5 - Trucking Troubles CCC 10p 18.6% 807
CCC '04 J1 - Squares CCC 3p 32.7% 6849
CCC '04 J2 - Terms of Office CCC 3p 37.5% 3969
CCC '04 J3 - Smile with Similes CCC 3p 57.2% 4666
CCC '04 J4 - Simple Encryption CCC 5p 52.2% 2074
CCC '04 J5 - Fractals CCC 10p 34.1% 266
CCC '04 S1 - Fix CCC 5p 32.3% 1390
CCC '04 S2 - TopYodeller CCC 5p 21.3% 861
CCC '04 S3 - Spreadsheet CCC 10p 27.6% 707
CCC '04 S4 - Space Turtle CCC 10p 20.3% 211
CCC '04 S5 - Super Plumber CCC 10p 24.2% 485
CCC '05 J1 - The Cell Sell CCC 3p 9.2% 1897
CCC '05 J2 - RSA Numbers CCC 3p 40.9% 3439
CCC '05 J3 - Returning Home CCC 5p 35.7% 2782