Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % ▴ Users
CCC '15 J5 - π-day CCC 10p 27.5% 1461
CCC '16 S1 - Ragaman CCC 3p 29.7% 2295
CCC '16 S2 - Tandem Bicycle CCC 5p 53.2% 3497
CCC '16 S4 - Combining Riceballs CCC 15p 28.7% 932
CCC '16 S3 - Phonomenal Reviews CCC 12p 26.4% 1103
CCC '16 S5 - Circle of Life CCC 20p 22.6% 577
CCC '16 J1 - Tournament Selection CCC 3 41.2% 4701
CCC '16 J2 - Magic Squares CCC 3 34.7% 3242
CCC '16 J3 - Hidden Palindrome CCC 5 45.9% 2550
CCC '16 J4 - Arrival Time CCC 5 29.0% 1675
CCC '17 J1 - Quadrant Selection CCC 3 60.6% 5572
CCC '17 J2 - Shifty Sum CCC 3 54.3% 4570
CCC '17 S5 - RMT CCC 20p 19.2% 243
CCC '17 S4 - Minimum Cost Flow CCC 17p 14.1% 770
CCC '17 S3 - Nailed It! CCC 7p 30.5% 1717
CCC '17 J3 - Exactly Electrical CCC 3p 29.9% 2370
CCC '17 S2 - High Tide, Low Tide CCC 5 27.9% 2840
CCC '17 S1 - Sum Game CCC 3 47.3% 3200
CCC '17 J4 - Favourite Times CCC 5p 23.4% 1565
CCC '18 S1 - Voronoi Villages CCC 3p 33.5% 3555
CCC '18 S2 - Sunflowers CCC 5p 39.6% 2805
CCC '18 S3 - RoboThieves CCC 12p 14.2% 1133
CCC '18 S4 - Balanced Trees CCC 15p 16.8% 574
CCC '18 S5 - Maximum Strategic Savings CCC 20p 26.7% 405
CCC '19 S5 - Triangle: The Data Structure CCC 20p 17.8% 357
CCC '19 S3 - Arithmetic Square CCC 12p 13.6% 500
CCC '19 S1 - Flipper CCC 3p 46.1% 3948
CCC '19 S2 - Pretty Average Primes CCC 5p 26.0% 2323
CCC '20 J4 - Cyclic Shifts (Hard) CCC 12p 3.8% 36
CCC '20 S3 - Searching for Strings CCC 12p 8.9% 840
CCC '20 S4 - Swapping Seats CCC 12p 25.6% 489
CCC '21 J4 - Arranging Books CCC 7p 19.6% 1317
CCC '21 S1 - Crazy Fencing CCC 5p 47.7% 2555
CCC '21 S2 - Modern Art CCC 7p 29.0% 2249
CCC '21 S3 - Lunch Concert CCC 10p 24.6% 1017
CCC '21 S4 - Daily Commute CCC 12p 26.1% 583
CCC '21 S5 - Math Homework CCC 15p 24.5% 418
CCC '22 S1 - Good Fours and Good Fives CCC 5p 39.4% 2125
CCC '22 S2 - Good Groups CCC 5p 26.1% 1553
CCC '22 S3 - Good Samples CCC 10p 18.3% 651
CCC '22 S4 - Good Triplets CCC 15p 28.5% 310
CCC '22 S5 - Good Influencers CCC 17p 32.6% 185
CCC '22 J1 - Cupcake Party CCC 3 55.4% 2910
CCC '22 J2 - Fergusonball Ratings CCC 3 47.7% 2656
CCC '22 J3 - Harp Tuning CCC 5p 33.3% 1491
CCC '22 J5 - Square Pool CCC 10p 20.5% 462
CCC '23 S1 - Trianglane CCC 5p 31.9% 1705
CCC '23 S2 - Symmetric Mountains CCC 7p 26.6% 813
CCC '23 S3 - Palindromic Poster CCC 10p 15.4% 420
CCC '23 S4 - Minimum Cost Roads CCC 15p 19.8% 254