Home
Problems
Submissions
Users
Contests
About
>
Status
Tips
API
Github
Log in
or
Sign up
This site works best with JavaScript enabled.
Problems
«
1
2
3
4
5
6
7
8
»
Problem search
Full text search
Has editorial
Show problem types
Category
All
---
AAC
ACC
APIO
Balkan OI
Baltic OI
BlueBook
Brazil OI
Bubble Cup
Bulgarian OI
CCC
CCO
CEOI
China NOI
Classics
COCI
CSPC
CTF
Data Structure Tests
DMOPC
DWITE
ECOO
EGOI
ESOI
FHC
Fun Math
GFSSOC
Google Code Jam
Google Hash Code
Google Kick Start
ICPC
IOI
JOI
Mock CCC
Mock CCO
MWC
Olympiads School
POI
SAC Coding Challenge
Seasonal
SIUCF
Taiwan NOI
TLE
TSOC
Uncategorized
VM7WC
WAC
Waterloo Local
Woburn Challenge
YAC
Point range
Go
Random
Hot problems
CCC '21 J3 - Secret Instructions
Problem
Category
Points ▾
AC %
Users
DMOPC '21 Contest 10 P6 - Median Replace
DMOPC
25p
18.8%
28
DMOPC '22 Contest 2 P6 - Yogyakarta Elevators
DMOPC
25p
9.0%
32
DMOPC '22 Contest 3 P6 - Compressibility
DMOPC
25p
8.0%
19
DMOPC '22 Contest 5 P5 - Twos and Threes
DMOPC
25
18.0%
17
DMOPC '23 Contest 1 P5 - Perfect Matching
DMOPC
25p
11.5%
14
DMOPC '14 Contest 3 P5 - Not Enough Servers!
DMOPC
20p
20.2%
208
DMOPC '14 Contest 4 P5 - Aircraft Carrier Akagi
DMOPC
20p
40.1%
24
DMOPC '14 Contest 5 P6 - Nia and Dominoes
DMOPC
20p
9.3%
9
DMOPC '14 Contest 7 P6 - Revenge of the Bins
DMOPC
20p
32.8%
115
DMOPC '15 Contest 7 P6 - A Very Very Original Problem
DMOPC
20p
27.8%
52
DMOPC '16 Contest 1 P6 - Phantom Child
DMOPC
20p
13.5%
9
DMOPC '17 Contest 1 P6 - Land of the Carrot Trees
DMOPC
20p
19.6%
38
DMOPC '17 Contest 2 P5 - Game
DMOPC
20p
15.4%
9
DMOPC '17 Contest 5 P6 - Bridges
DMOPC
20p
14.8%
7
DMOPC '18 Contest 5 P5 - A Hat Problem
DMOPC
20p
22.3%
57
DMOPC '18 Contest 1 P6 - Sorting
DMOPC
20p
18.7%
30
DMOPC '18 Contest 4 P6 - Dr. Henri and Resistor Chains
DMOPC
20p
4.2%
10
DMOPC '18 Contest 6 P5 - Quadrat Sampling
DMOPC
20p
15.2%
60
DMOPC '19 Contest 2 P6 - Two Roots
DMOPC
20p
12.0%
23
DMOPC '19 Contest 2 P5 - Connections
DMOPC
20
6.9%
12
DMOPC '19 Contest 7 P4 - Bob and Continued Fractions
DMOPC
20p
20.9%
108
DMOPC '19 Contest 3 P5 - Festival
DMOPC
20
11.5%
23
DMOPC '19 Contest 5 P6 - Cecilia's Computational Crisis
DMOPC
20p
8.2%
26
DMOPC '19 Contest 7 P5 - Soriya's Programming Project
DMOPC
20p
17.7%
120
DMOPC '20 Contest 5 P5 - Slacking Off Again
DMOPC
20p
17.6%
32
DMOPC '21 Contest 3 P5 - Crowded Travels
DMOPC
20p
20.8%
18
DMOPC '20 Contest 7 P3 - Senpai and Art
DMOPC
20p
10.7%
28
DMOPC '20 Contest 7 P5 - Mayors and Tolls
DMOPC
20
40.3%
39
DMOPC '21 Contest 1 P4 - Uneven Forest
DMOPC
20
27.7%
48
DMOPC '21 Contest 3 P4 - Sorting Subsequences
DMOPC
20p
14.2%
32
DMOPC '21 Contest 4 P5 - Graph Generator
DMOPC
20p
16.0%
17
DMOPC '21 Contest 9 P5 - Chika Circle
DMOPC
20p
11.7%
25
DMOPC '21 Contest 9 P4 - Ace of Diamonds
DMOPC
20p
20.0%
43
DMOPC '21 Contest 10 P5 - Number Theory
DMOPC
20p
43.8%
143
DMOPC '22 Contest 2 P4 - Falling Leaves
DMOPC
20p
24.3%
28
DMOPC '22 Contest 3 P5 - Alice Rebalancing
DMOPC
20p
7.3%
28
DMOPC '22 Contest 5 P6 - Threes and Twos
DMOPC
20p
20.0%
54
DMOPC '14 Contest 1 P6 - Biology Homework
DMOPC
17p
18.7%
33
DMOPC '14 Contest 6 P6 - Trip
DMOPC
17p
20.6%
17
DMOPC '15 Contest 1 P6 - Lelei and Contest
DMOPC
17p
18.7%
391
DMOPC '15 Contest 2 P6 - Manhattan Magnets
DMOPC
17p
17.4%
69
DMOPC '15 Contest 7 P5 - Ariadne's Thread
DMOPC
17p
21.0%
62
DMOPC '16 Contest 3 P4 - Serpent's Search
DMOPC
17p
0.6%
1
DMOPC '16 Contest 3 P6 - Long Lost Love
DMOPC
17p
18.9%
37
DMOPC '20 Contest 6 P4 - Land of the Carrot Trees II
DMOPC
17p
19.7%
36
DMOPC '17 Contest 5 P4 - Intersecting Arcs
DMOPC
17p
20.4%
63
DMOPC '20 Contest 1 P4 - Victor Makes Bank
DMOPC
17p
18.0%
148
DMOPC '20 Contest 7 P4 - Mimi and Carrots II
DMOPC
17p
24.1%
54
DMOPC '19 Contest 1 P5 - Broken String
DMOPC
17
9.0%
32
DMOPC '19 Contest 4 P5 - Financial Trouble
DMOPC
17p
11.4%
40
«
1
2
3
4
5
6
7
8
»