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Hot problems

Problem Category Points AC % Users
JOI '16 Final P2 - Semiexpress JOI 12 54.8% 17
JOI '17 Final P4 - Commuter Pass JOI 15 26.9% 61
JOI '19 Final P3 - Collecting Stamps 3 JOI 15 25.7% 40
JOI '20 Open P3 - Power Plant JOI 15p 38.9% 28
JOI '22 Final P2 - Self Study JOI 12p 26.8% 19
JOI '23 Open P3 - Garden JOI 12p 9.0% 6
Number Theoretic Transform Uncategorized 12 25.7% 11
JSB '19 - P5 CTF 15 19.2% 9
K-Dimensional Grids Uncategorized 15p 27.7% 21
Koala Ball Uncategorized 12p 32.4% 15
Longest Balanced Subsequence Uncategorized 15p 30.3% 28
Lego Uncategorized 15p 26.7% 14
Levve Loves Segment Trees Uncategorized 15 12.3% 45
Liars Uncategorized 15p 15.7% 9
LKP '18 Contest 1 P4 - Fun in Föràg Uncategorized 15p 13.4% 256
LKP '18 Contest 2 P4 - The Zagonetka Machine Uncategorized 12p 14.0% 39
Willie's Subtree Uncategorized 15 17.4% 10
Max's Anger Contest Series 1 P4 - Greedily Gamboling Seasonal 12p 17.8% 73
Max's Anger Contest Series 1 P4 - Greedily Gamboling (Hard Version) Seasonal 15p 28.7% 13
Max's Anger Contest Series 1 P5 - Slacking Subsequences Seasonal 15p 30.9% 58
Max's Anger Contest Series 2 P4 - Number Anger Seasonal 12p 37.7% 51
Max's Anger Contest Series 2 P5 - Job Anger Seasonal 12p 28.2% 60
MALD Contest 1 P4 - Scratch Cat and Demolition Uncategorized 15p 34.2% 53
A Math Contest P10 - Tricky Multisets Uncategorized 12 27.5% 70
A Math Contest P11 - Weak Goldbach's Conjecture Uncategorized 15 25.4% 75
A Math Contest P8 - Permutation Counting Uncategorized 12 36.9% 73
A Math Contest P9 - Buy Some Get Some Uncategorized 12 26.4% 80
Mock CCC '20 Contest 1 J5 - A Prime Problem Mock CCC 12p 2.9% 23
Mock CCC '23 Contest 1 J5 - Calculus Problem Mock CCC 12p 10.1% 42
Mock CCC '24 Contest 1 S4 - Tommy's Lemonade Stand Mock CCC 12p 22.0% 29
Mock CCO '17 Problem 4 - Guards Mock CCO 15p 17.6% 54
Mock CCO '19 Contest 1 Problem 4 - A Chemistry Problem Mock CCO 15p 15.8% 15
Mock CCO '19 Contest 1 Problem 6 - A Geometry Problem Mock CCO 15p 28.1% 18
Mock CCO '19 Contest 2 Problem 1 - A Dynamic Connectivity Problem Mock CCO 15p 31.0% 71
Mock CCO '19 Contest 2 Problem 2 - A Simulation Problem Mock CCO 15p 10.7% 8
Mock CCO '19 Contest 2 Problem 3 - A Cactus Problem Mock CCO 15p 6.2% 7
Mock CCO '19 Contest 2 Problem 5 - A Geometry Problem Mock CCO 12p 4.3% 2
Mock CCO '19 Contest 2 Problem 6 - A Fundraising Problem Mock CCO 12p 17.1% 36
MCIPC Contest 2 P6 - Block Tower Uncategorized 12p 11.6% 9
MEC '16 P4 - Circuitry Seasonal 15p 16.2% 21
Median Modulo Uncategorized 15p 7.3% 7
Meta Classics 12p 34.1% 12
Maximum Independent Subset Uncategorized 15p 12.6% 10
MMCC '14 P3 - Esdeath Uncategorized 15p 14.9% 208
MMCC '15 P1 - Inaho Uncategorized 15p 17.8% 243
MNYC '16: Rocks Seasonal 15p 28.5% 170
MNYC '17: Removing Christmas Trees Seasonal 15p 21.4% 50
MNYC '17: Skiing Competition Seasonal 15p 4.4% 7
Mock CCC '14 S4 - Roadtrip Tracking Mock CCC 15p 9.0% 58
Mock CCC '14 S5 - Elimination Game Mock CCC 15p 21.8% 58