Problems

Problem search

Point range
Go Random
Problem Category Points AC % ▾ Users
Mock CCC '20 Contest 1 J2 - Tie Uncategorized 3p 62.7% 54
LCC '18 Contest 1 S1 - Class Picture LCC 5p 62.5% 76
LCC '25 Contest 1 S2 - Haunted Mansion LCC 7p 62.5% 5
A Sliding Window Problem Classics 7 62.5% 5
LCC '25 Contest 1 J3 - Candyman LCC 5p 62.1% 6
LCC '22 Contest 4 J4 - Snake Game LCC 5p 61.5% 6
Art Academy II: The Grand Escape Uncategorized 7p 60.9% 11
List Minimum Uncategorized 4 60.8% 104
Tree Visibility Uncategorized 5 60.7% 9
Dynamic Programming Competitive 3 60.6% 112
LCC '18 Contest 4 J2 - Dereck and Essays LCC 3p 60.3% 61
Santa and Letters Competitive 5 60.3% 41
JDCC '17 Contest 3 J2 - Interview Seating JDCC 5 60.1% 45
LCC '21 Contest 5 S1 - An Olden Art Problem LCC 5 60.0% 9
LCC '21 Contest 4 J3 - Ben's Gaming Addiction LCC 5 60.0% 12
Market Analysis Uncategorized 7 60.0% 7
I Hate Ready to Program P10 - Graphics Galore: The Sequel Competitive 7 60.0% 2
CCC '22 J5 - Square Pool CCC 10p 60.0% 3
CCC '24 J4 - Troublesome Keys CCC 5p 60.0% 2
CCC '25 J3 - Product Codes CCC 5p 60.0% 3
Safest Path Uncategorized 10 60.0% 2
Mock CCC '26 J1 - Changes Mock CCC 3 60.0% 17
LCC/Moose '19 Contest 2 S1 - ?️eans LCC 3p 59.9% 87
LCC '21 Contest 2 J3 - Grid Sum LCC 3 59.8% 33
Temperature Classifier Competitive 3 59.6% 86
JDCC '16 Contest 3 P2 - The Number Eight JDCC 3 59.6% 58
Rated Contest 3 P1 - Jake's Phone Book Uncategorized 5 59.4% 18
Emag Eman Co-Ed 3 59.1% 80
ECOO '21 P1 - Many Messages ECOO 3p 59.1% 13
Cookie Monster Uncategorized 5 58.9% 32
Pop Quiz! Co-Ed 3 58.9% 40
Middle Squares Uncategorized 5p 58.8% 6
Fast Heavy-Light Decomposition Classics 10 58.5% 15
LCC '21 Contest 4 J1 - Colourful Buttons LCC 3p 58.5% 23
Bob's Friends Uncategorized 5 58.4% 52
Hello, World! Classics 1 58.2% 380
LCC/Moose '19 Contest 2 J1 - Professor McGonagall LCC 3p 57.9% 61
LCC/Moose '19 Contest 5 S1 - Genome LCC 5p 57.6% 31
ECOO '21 Practice P1 - Tootsie Rolls! ECOO 3p 57.1% 20
LCC '21 Contest 6 J2 - Batrick's Ballad LCC 3 57.1% 15
Ready, (Set), Go! Uncategorized 5 57.1% 10
LCC '22 Contest 6 S2 - Math Evaluation LCC 7 57.1% 4
CCC '17 J3 - Exactly Electrical CCC 3p 57.1% 3
LCC '25 Contest 3 J3 - Snowball Competition LCC 7p 57.1% 2
LCC '25 Contest 3 S3 - Present Conveyor System LCC 10p 57.1% 4
Medians Competitive 5 56.8% 60
Month of Strings Co-Ed 3 56.7% 68
An AQT Problem Uncategorized 7 55.6% 21
LCC '22 Contest 6 J1 - Integral Calculus LCC 3p 55.6% 9
LCC '22 Contest 6 J4 - LCC Word Hunt LCC 7 55.6% 3