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
...
43
44
45
46
47
48
...
103
104
»
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
CIW
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
COCI '08 Contest 3 #2 Kemija
DMOPC '18 Contest 4 P3 - Dr. Henri and Ionization
CCC '25 J3 - Product Codes
Canada Day Contest 2021 - CCC Bad Haha
CCC '17 S3 - Nailed It!
CCC '23 S2 - Symmetric Mountains
CCC '16 S3 - Phonomenal Reviews
Problem
Category
Points
AC %
Users
DMOPC '20 Contest 1 P5 - Victor Takes Over Canada
DMOPC
17p
13.1%
133
DMOPC '20 Contest 1 P6 - Victor Identifies Software
DMOPC
25p
17.0%
44
DMOPC '20 Contest 2 P1 - Laugh Graphs
DMOPC
5
32.8%
406
DMOPC '20 Contest 2 P2 - Lousy Christmas Presents
DMOPC
5p
24.7%
469
DMOPC '20 Contest 2 P3 - Roadrollification
DMOPC
10p
31.9%
131
DMOPC '20 Contest 2 P4 - Hungry Pigeons
DMOPC
15p
10.3%
70
DMOPC '20 Contest 2 P5 - Majority Subarrays
DMOPC
25p
7.3%
37
DMOPC '20 Contest 2 P6 - Unfair Game
DMOPC
25p
16.2%
25
DMOPC '20 Contest 3 P1 - Present Checking
DMOPC
5p
48.6%
474
DMOPC '20 Contest 3 P2 - Bob and Parallel-Ks
DMOPC
7p
14.1%
176
DMOPC '20 Contest 3 P3 - A Ring of Buckets
DMOPC
12p
7.9%
68
DMOPC '20 Contest 3 P4 - Bob and Typography
DMOPC
15p
2.4%
9
DMOPC '20 Contest 3 P5 - Tower of Power
DMOPC
25p
6.8%
76
DMOPC '20 Contest 4 P1 - Missing Numbers
DMOPC
5p
14.7%
404
DMOPC '20 Contest 4 P2 - Beautiful Grids
DMOPC
7p
17.3%
158
DMOPC '20 Contest 4 P3 - Roving Roombas
DMOPC
12p
21.3%
220
DMOPC '20 Contest 4 P4 - Javelin Throwing
DMOPC
15p
20.2%
63
DMOPC '20 Contest 4 P5 - Cyclic Cypher
DMOPC
17p
9.9%
32
DMOPC '20 Contest 4 P6 - Petty Children
DMOPC
25p
21.0%
25
DMOPC '20 Contest 5 P1 - Home Row
DMOPC
3
34.8%
494
DMOPC '20 Contest 5 P2 - On The Clock
DMOPC
7p
17.9%
266
DMOPC '20 Contest 5 P3 - Bottom Row
DMOPC
15p
6.6%
41
DMOPC '20 Contest 5 P4 - Slacking Off
DMOPC
15p
14.5%
83
DMOPC '20 Contest 5 P5 - Slacking Off Again
DMOPC
20p
17.7%
33
DMOPC '20 Contest 5 P6 - Top Row
DMOPC
35p
3.0%
5
DMOPC '20 Contest 5 P6 - Top Row (Offline Version)
DMOPC
30p
17.4%
2
DMOPC '20 Contest 6 P1 - Tug of War
DMOPC
7p
15.7%
192
DMOPC '20 Contest 6 P2 - Interpretive Art
DMOPC
7p
11.4%
131
DMOPC '20 Contest 6 P3 - Bread Merchant
DMOPC
10p
19.1%
138
DMOPC '20 Contest 6 P4 - Land of the Carrot Trees II
DMOPC
17p
18.7%
43
DMOPC '20 Contest 6 P5 - Jennifer's Math Mystery
DMOPC
17p
12.6%
31
DMOPC '20 Contest 6 P6 - Dumping Buckets
DMOPC
25p
9.5%
19
DMOPC '20 Contest 7 P1 - Bob and Balance
DMOPC
7p
25.1%
221
DMOPC '20 Contest 7 P2 - Alice and Tiles
DMOPC
10p
19.2%
66
DMOPC '20 Contest 7 P3 - Senpai and Art
DMOPC
20p
10.0%
32
DMOPC '20 Contest 7 P4 - Mimi and Carrots II
DMOPC
17p
24.3%
58
DMOPC '20 Contest 7 P5 - Mayors and Tolls
DMOPC
20
38.3%
41
DMOPC '20 Contest 7 P6 - Maou and Division
DMOPC
25p
9.3%
15
DMOPC '21 Contest 10 P1 - Japaneasy
DMOPC
5
35.5%
243
DMOPC '21 Contest 10 P2 - Cycle Sort
DMOPC
7p
11.8%
170
DMOPC '21 Contest 10 P3 - Peculiar Reflections
DMOPC
12p
16.0%
103
DMOPC '21 Contest 10 P4 - Bitwise Telephone
DMOPC
17p
3.9%
31
DMOPC '21 Contest 10 P5 - Number Theory
DMOPC
20p
44.5%
192
DMOPC '21 Contest 10 P6 - Median Replace
DMOPC
25p
19.6%
31
DMOPC '21 Contest 1 P1 - Partial Game
DMOPC
5p
29.7%
466
DMOPC '21 Contest 1 P2 - Folding Clothes
DMOPC
7p
32.1%
202
DMOPC '21 Contest 1 P3 - Mystery DAG
DMOPC
12
16.0%
119
DMOPC '21 Contest 1 P4 - Uneven Forest
DMOPC
20
27.9%
53
DMOPC '21 Contest 1 P5 - Perfect Cross
DMOPC
25p
8.7%
10
DMOPC '21 Contest 1 P6 - Tree Jumping
DMOPC
25p
23.7%
13
«
1
2
...
43
44
45
46
47
48
...
103
104
»