Problems

Problem search

Point range
Go Random

Hot problems

Problem Category Points AC % Users
A Math Contest P12 - Triangles Uncategorized 17 27.6% 21
A Math Contest P13 - Ways Uncategorized 17 20.3% 34
A Math Contest P14 - Choosing Marbles Uncategorized 25p 22.4% 44
A Math Contest P15 - Matrix Fixed Point Uncategorized 20 69.8% 32
A Math Contest P16 - Morbius vs. Suibom Uncategorized 25 18.1% 20
A Math Contest P17 - Heatwaves Uncategorized 45 36.4% 3
A Math Contest P2 - Subsequence Sum Uncategorized 5 29.9% 389
A Math Contest P3 - LIS Reconstruction Uncategorized 7 45.1% 196
A Math Contest P4 - Circle Cutting Uncategorized 7 37.4% 127
A Math Contest P5 - Good Arrays Uncategorized 7p 27.9% 179
A Math Contest P6 - Global Maximum Uncategorized 10 29.3% 100
A Math Contest P7 - Factors Uncategorized 10 31.8% 166
A Math Contest P8 - Permutation Counting Uncategorized 12 36.9% 73
A Math Contest P9 - Buy Some Get Some Uncategorized 12 26.4% 80
Mathtermind Uncategorized 7 42.9% 11
Fast Matrix Multiplication Classics 20p 0.0% 0
Maximum Product of K Integers Uncategorized 25 3.0% 2
Mock CCC '20 Contest 1 J1 - A Rage Tree Problem Mock CCC 3p 48.2% 858
Mock CCC '20 Contest 1 J2 - A Simplex Problem Mock CCC 3p 52.5% 636
Mock CCC '20 Contest 1 J3 - A Geometry Problem Mock CCC 3p 9.3% 302
Mock CCC '20 Contest 1 J4 - A Binary Problem Mock CCC 5p 11.8% 220
Mock CCC '20 Contest 1 J5 - A Prime Problem Mock CCC 12p 2.9% 23
Mock CCC '20 S1 - War Mock CCC 3p 29.9% 487
Mock CCC '20 S2 - Flipper Redux Mock CCC 7p 26.9% 305
Mock CCC '20 S3 - SAM I Am Mock CCC 10p 12.7% 72
Mock CCC '20 S4 - Valentine's Day Shopping Mock CCC 20p 7.9% 15
Mock CCC '20 Contest 2 S1 - Arithmetic Hybercube Mock CCC 3p 54.3% 423
Mock CCC '20 Contest 2 S2 - 4D BBST on a DP Mock CCC 5p 28.2% 292
Mock CCC '20 Contest 2 S3 - Tree Programming Mock CCC 10p 15.7% 83
Mock CCC '20 Contest 2 S4 - Rotational Arrays Mock CCC 10p 11.8% 62
Mock CCC '20 Contest 2 S5 - Sticks Mock CCC 20p 2.3% 4
Mock CCC '22 Contest 1 J1 - Square Root Decomposition Mock CCC 3 39.6% 692
Mock CCC '22 Contest 1 J2 - Biking and Hiking Mock CCC 3 34.5% 566
Mock CCC '22 Contest 1 J3 - String Crossing Maximization Mock CCC 7p 12.4% 251
Mock CCC '22 Contest 1 J4 - Snowball Fight Mock CCC 5p 16.8% 243
Mock CCC '22 Contest 1 J5 - New Year's Restrictions Mock CCC 7p 24.9% 146
Mock CCC '22 Contest 2 J1 - Opening Ceremony Mock CCC 3 47.8% 756
Mock CCC '22 Contest 2 J2 - Snowboarding Championship Mock CCC 3 36.0% 608
Mock CCC '22 Contest 2 J3 - Figure Skating Fun Mock CCC 5p 31.1% 496
Mock CCC '22 Contest 2 J4 - Hockey Bracket Mock CCC 7p 18.3% 194
Mock CCC '22 Contest 2 J5 - Dominating the Olympics Mock CCC 10 15.8% 90
Mock CCC '23 Contest 1 J1 - Final Velocity Mock CCC 3 65.4% 819
Mock CCC '23 Contest 1 J2 - Healthy Schedule Mock CCC 3 37.5% 624
Mock CCC '23 Contest 1 J3 - Pairing Gifts Mock CCC 5p 12.8% 268
Mock CCC '23 Contest 1 J4 - String Decryption Mock CCC 5p 17.0% 169
Mock CCC '23 Contest 1 J5 - Calculus Problem Mock CCC 12p 10.1% 42
Mock CCC '24 Contest 1 J1 - Lemon Bathtub Mock CCC 3 59.2% 569
Mock CCC '24 Contest 1 J2 - Simple Elo Rating System Mock CCC 3 32.9% 243
Mock CCC '24 Contest 1 J3 - RGB Words Mock CCC 5p 12.7% 202
Mock CCC '24 Contest 1 J5 - Mathland Mock CCC 10p 8.0% 34