Home
Problems
Submissions
Users
Contests
Submissions
Learning
More
About
Contact
Status
Capture the Flag
Lessons
FAQ
Achievements
Site Archive
Log in
or
Sign up
This site works best with JavaScript enabled.
Problems
«
1
2
...
11
12
13
14
15
16
»
Problem search
Full text search
Show problem types
Category
All
---
CCO
Classics
Co-Ed
Competitive
ECOO
Girls Invitational
ICS3U
JDCC
LCC
Uncategorized
Point range
Go
Random
Problem
Category
Points ▴
AC %
Users
LCC '22 Contest 1 S3 - Candy Pathways
LCC
15p
15.3%
8
LCC '22 Contest 3 S5 - Umbrella
LCC
15
31.6%
2
Baltic OI '09 - Beetle
Uncategorized
15
30.0%
3
Maximum Independent Set
Uncategorized
15
44.4%
2
LCC '22 Contest 6 S4 - Motivation
LCC
15p
7.1%
2
CCC '15 S4 - Convex Hull
Uncategorized
15p
13.6%
3
Rated Contest 2 P5 - Ski Cults
LCC
15p
26.9%
5
LCC '23 Contest 3 S5 - Snowstorm
LCC
15p
14.3%
3
Segment Tree Test
Uncategorized
15
33.3%
1
LCC '23 Contest 4 S4 - Date Frenzy
LCC
15
9.5%
2
JDCC '15 Contest 5 P5 - Domino Tilings
JDCC
17
1.7%
1
LCC '18 Contest 2 S5 - Salaries
LCC
17p
30.5%
19
XOR Minimum
Uncategorized
17p
41.7%
12
Inaho III
Uncategorized
17p
21.1%
3
Midas' Amoebas
Competitive
17
40.7%
3
LCC/Moose '19 Contest 2 S5 - Hip Hop
LCC
17p
11.8%
6
MLE '19 Contest 3 P1 - PHP
Uncategorized
17
16.1%
1
ECOO '21 P5 - Waldwick's Walk
ECOO
17p
0.0%
0
LCC '22 Contest 2 S5 - Nutty Necklaces
LCC
17p
10.4%
3
Wishlist Worries
Competitive
17p
41.7%
3
LCC '22 Contest 5 S5 - Jimmy's Ribbon
LCC
17p
9.1%
1
LCC '22 Contest 6 S5 - Cyberattack!
LCC
17p
37.5%
1
LCC '23 Contest 4 S5 - Building Roads
Uncategorized
17
40.0%
1
JDCC '17 Contest 2 S5 - Workshop Crisis
JDCC
20p
11.2%
5
Selective Selective Cutting
Classics
20
39.3%
7
LCC '18 Contest 1 S5 - Line Runner
LCC
20
9.5%
2
Maintaining a Sequence
Uncategorized
20p
19.1%
14
A Combining Problem
Uncategorized
20
15.0%
6
Inaho VIII
Uncategorized
20
50.0%
4
Mock CCC '19 Contest 1 S5 - Tree Game
Uncategorized
20
9.1%
1
An XOR Problem
Uncategorized
20
4.1%
2
Static Tree Test
Classics
20
35.3%
4
A Harder Contest '19 - An Alternating Problem
Uncategorized
20p
5.8%
8
Frog
Classics
20
31.1%
10
LCC/Moose '19 Contest 3 S5 - Konnect
LCC
20p
19.0%
11
Mock CCC '20 Contest 1 S5 - Sticks
Uncategorized
20p
33.3%
1
LCC/Moose '19 Contest 5 S5 - Caterpillar
LCC
20p
24.1%
4
hewmatt10's Tourism
Competitive
20p
4.7%
3
Larry and Mate
Competitive
20p
16.1%
4
LCC/Moose '20 Contest 5 S5 - Segment Tree Beats
LCC
20p
3.9%
4
LCC '21 Contest 4 S5 - The End of Art Academy
LCC
20p
24.0%
3
LCC '21 Contest 2 S5 - Pretty Places
Uncategorized
20p
5.3%
3
LCC '21 Contest 5 S5 - A Cousin Problem
Classics
20
13.0%
3
LCC '21 Contest 6 S4 - String Counting
LCC
20p
25.0%
1
LCC '22 Contest 1 S5 - Candy Staircase
LCC
20p
15.6%
3
LCC '22 Contest 4 S5 - Nita's Summer Splash
LCC
20p
4.5%
1
Art Academy III: Sabotage
Uncategorized
21p
50.0%
1
Dynamic Tree Test (Easy)
Classics
25p
45.2%
10
Selective Selective Selective Cutting
Classics
25
23.8%
3
A New Country
Uncategorized
25p
44.4%
4
«
1
2
...
11
12
13
14
15
16
»