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
...
15
16
17
18
19
20
...
38
39
»
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 S2 - Modern Art
COCI '13 Contest 1 #5 Organizator
CCC '24 S4 - Painting Roads
CCC '13 S1 - From 1987 to 2013
CCC '00 S1 - Slot Machines
COCI '08 Contest 3 #2 Kemija
CCC '24 S5 - Chocolate Bar Partition
Problem
Category
Points
AC %
Users
DMOPC '17 Contest 5 P4 - Intersecting Arcs
DMOPC
17p
19.8%
65
DMOPC '17 Contest 5 P5 - XOR Bridges
DMOPC
15p
18.7%
56
DMOPC '18 Contest 1 P3 - Sorting
DMOPC
12p
22.1%
96
DMOPC '18 Contest 1 P4 - Sorting
DMOPC
12p
14.2%
86
DMOPC '18 Contest 1 P5 - Sorting
DMOPC
12p
24.7%
32
DMOPC '18 Contest 2 P3 - Thanksgiving Feast
DMOPC
10p
41.7%
319
DMOPC '18 Contest 2 P5 - Another Sequence Problem
DMOPC
15p
12.8%
50
DMOPC '18 Contest 3 P3 - Bob and Math Class
DMOPC
10p
14.9%
55
DMOPC '18 Contest 3 P4 - Bob and English Class
DMOPC
15p
34.1%
126
DMOPC '18 Contest 3 P5 - Bob and Physics Class
DMOPC
15p
12.0%
16
DMOPC '18 Contest 4 P3 - Dr. Henri and Ionization
DMOPC
10p
44.6%
122
DMOPC '18 Contest 4 P4 - Dr. Henri and Lab Data
DMOPC
12p
35.6%
299
DMOPC '18 Contest 5 P4 - An Art Gallery Problem
DMOPC
12p
13.0%
72
DMOPC '18 Contest 6 P3 - Wish Upon a Star
DMOPC
10p
44.7%
397
DMOPC '18 Contest 6 P4 - Tank
DMOPC
10
18.1%
136
DMOPC '19 Contest 1 P3 - Simple Math
DMOPC
12
17.4%
46
DMOPC '19 Contest 1 P4 - A Strange Graph
DMOPC
15p
9.7%
17
DMOPC '19 Contest 1 P5 - Broken String
DMOPC
17
9.4%
34
DMOPC '19 Contest 2 P3 - Selection
DMOPC
12
38.8%
164
DMOPC '19 Contest 2 P4 - A Greedy Problem
DMOPC
15p
20.6%
85
DMOPC '19 Contest 3 P3 - Majority
DMOPC
12p
48.4%
281
DMOPC '19 Contest 3 P4 - Same Colour Leaves
DMOPC
15
33.4%
127
DMOPC '19 Contest 4 P2 - Pleasant Present
DMOPC
10p
18.2%
123
DMOPC '19 Contest 4 P3 - Taking Cues
DMOPC
12p
19.9%
84
DMOPC '19 Contest 4 P4 - Math Class
DMOPC
15p
3.4%
16
DMOPC '19 Contest 4 P5 - Financial Trouble
DMOPC
17p
11.9%
43
DMOPC '19 Contest 5 P3 - Captivating Construction Challenge
DMOPC
12p
45.0%
121
DMOPC '19 Contest 5 P5 - Crazy Cyclic Coincidences
DMOPC
17p
19.6%
44
DMOPC '19 Contest 6 P3 - Grade 11 Math
DMOPC
10p
13.3%
129
DMOPC '19 Contest 6 P4 - Grade 12 Math
DMOPC
15p
23.7%
128
DMOPC '19 Contest 7 P2 - Dinner Party
DMOPC
10
18.7%
146
DMOPC '19 Contest 7 P3 - Tree Pruning
DMOPC
12p
21.6%
145
DMOPC '20 Contest 1 P4 - Victor Makes Bank
DMOPC
17p
18.1%
151
DMOPC '20 Contest 1 P5 - Victor Takes Over Canada
DMOPC
17p
12.1%
111
DMOPC '20 Contest 2 P3 - Roadrollification
DMOPC
10p
32.1%
125
DMOPC '20 Contest 2 P4 - Hungry Pigeons
DMOPC
15p
11.0%
66
DMOPC '20 Contest 3 P3 - A Ring of Buckets
DMOPC
12p
6.8%
58
DMOPC '20 Contest 3 P4 - Bob and Typography
DMOPC
15p
2.5%
9
DMOPC '20 Contest 4 P3 - Roving Roombas
DMOPC
12p
20.4%
192
DMOPC '20 Contest 4 P4 - Javelin Throwing
DMOPC
15p
20.0%
57
DMOPC '20 Contest 4 P5 - Cyclic Cypher
DMOPC
17p
10.1%
32
DMOPC '20 Contest 5 P3 - Bottom Row
DMOPC
15p
6.6%
40
DMOPC '20 Contest 5 P4 - Slacking Off
DMOPC
15p
13.5%
82
DMOPC '20 Contest 6 P3 - Bread Merchant
DMOPC
10p
19.2%
125
DMOPC '20 Contest 6 P4 - Land of the Carrot Trees II
DMOPC
17p
18.8%
41
DMOPC '20 Contest 6 P5 - Jennifer's Math Mystery
DMOPC
17p
12.2%
28
DMOPC '20 Contest 7 P2 - Alice and Tiles
DMOPC
10p
18.6%
59
DMOPC '20 Contest 7 P4 - Mimi and Carrots II
DMOPC
17p
24.2%
56
DMOPC '21 Contest 10 P3 - Peculiar Reflections
DMOPC
12p
14.1%
75
DMOPC '21 Contest 10 P4 - Bitwise Telephone
DMOPC
17p
3.9%
31
«
1
2
...
15
16
17
18
19
20
...
38
39
»