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
...
61
62
63
64
65
66
...
99
100
»
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 '00 S1 - Slot Machines
Knapsack 4
ICPC PACNW 2016 A - Alphabet
Educational DP Contest AtCoder B - Frog 2
CCC '23 S2 - Symmetric Mountains
Another Random Contest 1 P5 - A Strange Country
DMOPC '19 Contest 4 P1 - Valid Strings
Problem
Category
Points
AC %
Users
IOI '08 P1 - Type Printer
IOI
12p
20.0%
408
IOI '08 P2 - Islands
IOI
25p
10.4%
111
IOI '08 P3 - Fish
IOI
35p
9.9%
63
IOI '08 P4 - Teleporters
IOI
25p
30.2%
13
IOI '08 P6 - Pyramid Base
IOI
40p
12.7%
7
IOI '09 P1 - Archery
IOI
45p
13.4%
37
IOI '09 P2 - Hiring
IOI
12p
32.3%
251
IOI '09 P3 - POI
IOI
7
28.8%
527
IOI '09 P4 - Raisins
IOI
10p
55.4%
543
IOI '09 P5 - Garage
IOI
7
46.4%
530
IOI '09 P6 - Mecho
IOI
15
14.8%
324
IOI '09 P7 - Regions
IOI
20p
11.8%
54
IOI '09 P8 - Salesman
IOI
25p
16.7%
132
IOI '09 Practice Task 3 - Museum
IOI
15p
48.5%
72
IOI '10 P1 - Cluedo
IOI
5p
36.1%
135
IOI '10 P2 - Hotter Colder
IOI
20
0.5%
3
IOI '10 P3 - Quality of Living
IOI
15p
27.9%
147
IOI '10 P3 - Quality of Living (Standard I/O)
IOI
15p
28.0%
336
IOI '10 P5 - Memory
IOI
5p
23.0%
134
IOI '10 P6 - Traffic Congestion
IOI
10p
18.2%
94
IOI '10 P6 - Traffic Congestion (Standard I/O)
IOI
10p
33.1%
415
IOI '10 P7 - Maze
IOI
25p
0.0%
0
IOI '11 P1 - Tropical Garden
IOI
25p
15.2%
37
IOI '11 P1 - Tropical Garden (Standard I/O)
IOI
25p
11.8%
166
IOI '11 P2 - Race
IOI
17p
18.5%
207
IOI '11 P2 - Race (Standard I/O)
IOI
17p
15.1%
523
IOI '11 P3 - Rice Hub
IOI
15p
18.2%
125
IOI '11 P3 - Rice Hub (Standard I/O)
IOI
15p
19.5%
496
IOI '11 P4 - Crocodile's Underground City
IOI
17p
28.5%
86
IOI '11 P4 - Crocodile's Underground City (Standard I/O)
IOI
17p
19.1%
374
IOI '11 P5 - Dancing Elephants
IOI
40p
10.3%
41
IOI '11 P5 - Dancing Elephants (Standard I/O)
IOI
20p
10.6%
93
IOI '11 P6 - Parrots
IOI
20p
3.6%
16
IOI '12 P1 - Pebbling Odometer
IOI
30p
2.9%
4
IOI '12 P2 - Parachute Rings
IOI
25p
15.3%
24
IOI '12 P2 - Parachute Rings (Standard I/O)
IOI
25p
11.5%
111
IOI '12 P3 - Crayfish Scrivener
IOI
15p
31.0%
82
IOI '12 P3 - Crayfish Scrivener (Standard I/O)
IOI
15p
16.8%
276
IOI '12 P4 - Ideal City
IOI
25p
25.0%
10
IOI '12 P4 - Ideal City (Standard I/O)
IOI
25p
42.9%
5
IOI '12 P5 - Last Supper
IOI
30p
25.0%
5
IOI '12 P6 - Jousting Tournament
IOI
17p
16.4%
16
IOI '12 P6 - Jousting Tournament (Standard I/O)
IOI
17p
16.7%
12
IOI '13 P1 - Dreaming
IOI
15p
22.9%
226
IOI '13 P1 - Dreaming (Standard I/O)
IOI
15p
18.4%
523
IOI '13 P2 - Art Class (Standard I/O)
IOI
20p
2.7%
88
IOI '13 P3 - Wombats
IOI
40p
13.2%
38
IOI '13 P3 - Wombats (Standard I/O)
IOI
40p
9.5%
60
IOI '13 P4 - Cave
IOI
10p
18.6%
311
IOI '13 P5 - Robots
IOI
20p
18.3%
90
«
1
2
...
61
62
63
64
65
66
...
99
100
»