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
...
99
100
101
102
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
CCC '15 J4 - Wait Time
CCC '22 S5 - Good Influencers
CCC '22 S3 - Good Samples
CCO '01 P1 - The Monkey Dance
COCI '22 Contest 4 #2 Zrinka
CCC '23 S5 - The Filter
Back From Summer '17 P2: Crayola Lightsaber
Problem
Category
Points
AC %
Users
WC '18 Finals J1 - Conditional Contracts
Woburn Challenge
5p
39.1%
177
WC '18 Finals J2 - Script Doctor
Woburn Challenge
5p
25.2%
90
WC '18 Finals S1 - Behind the Scenes
Woburn Challenge
7p
39.1%
48
WC '18 Finals S2 - Top Billing
Woburn Challenge
12p
39.0%
61
WC '18 Finals S3 - Screen Time
Woburn Challenge
15p
19.5%
25
WC '18 Finals S4 - Posters
Woburn Challenge
20p
24.0%
6
WC '18 Finals S5 - Opening Weekend
Woburn Challenge
25p
13.3%
7
WC '95 P1 - Coded Message
Woburn Challenge
7
10.0%
59
WC '95 P2 - Round Numbers
Woburn Challenge
12p
9.1%
41
WC '95 P3 - Smallest Latin Square
Woburn Challenge
10
39.3%
48
WC '95 P4 - Wildcard
Woburn Challenge
10
49.4%
52
WC '95 P5 - Factorial Power
Woburn Challenge
5
28.3%
131
WC '96 P1 - Fishes in a Tank
Woburn Challenge
5
26.2%
43
WC '96 P2 - Row and Column
Woburn Challenge
7
13.5%
36
WC '96 P3 - Hidden Geography
Woburn Challenge
5
31.7%
123
WC '96 P5 - Plentiful Paths
Woburn Challenge
7
37.0%
195
WC '96 P6 - Bases Multiplication
Woburn Challenge
5
42.4%
270
WC '97 P1 - Searching Quickly
Woburn Challenge
10
30.8%
11
WC '97 P2 - Power of Cryptography
Woburn Challenge
20
12.1%
12
WC '97 P3 - Stacks of Flapjacks
Woburn Challenge
15p
31.4%
8
WC '97 P4 - Typing
Woburn Challenge
5
31.0%
269
WC '97 P5 - Encoding Grid
Woburn Challenge
20
6.3%
1
WC '98 P1 - Optical Recognition
Woburn Challenge
12
21.1%
4
WC '98 P2 - The Hutts Strike Back
Woburn Challenge
10
26.5%
11
WC '98 P3 - Do or Do Not
Woburn Challenge
10
31.6%
23
WC '98 P4 - GATTACA
Woburn Challenge
20p
7.3%
6
WC '98 P5 - Y2K
Woburn Challenge
10
34.3%
32
WC '98 P6 - Return of the Plachta
Woburn Challenge
5
24.1%
151
WC '99 P1 - The Matrix
Woburn Challenge
7
34.3%
46
WC '99 P2 - Mission Impossible
Woburn Challenge
7
18.6%
63
WC '99 P3 - The Godfather
Woburn Challenge
5
29.3%
57
WC '99 P4 - Goldfinger
Woburn Challenge
5
34.2%
104
WC '99 P5 - Good Will Hunting
Woburn Challenge
5
16.8%
89
WC '99 P6 - Fight Club
Woburn Challenge
10
24.3%
39
WC '99 P7 - The Rock
Woburn Challenge
15
22.6%
29
WC '99 Suicidal P1 - World
Woburn Challenge
17p
16.9%
27
WC '99 Suicidal P2 - Good Hunting Will
Woburn Challenge
20p
0.4%
1
WC '99 Suicidal P3 - Message
Woburn Challenge
12
47.1%
6
WC '99 Suicidal P4 - Good Ethan Hunt
Woburn Challenge
15
19.4%
21
WC '99 Suicidal P5 - Star Wars
Woburn Challenge
15
38.9%
14
WC '99 Suicidal P6 - Wedding Juicer
Woburn Challenge
15
16.2%
36
Wesley++
Seasonal
15p
11.7%
10
ACM-ICPC World Finals 2007 Problem J - Tunnels
ICPC
40
28.0%
13
Willie's Fan Club
Uncategorized
7
38.1%
41
Word Counting
Uncategorized
10
10.0%
11
Guess the Wordle
Uncategorized
10
17.6%
6
Word Wrap Cypher
Uncategorized
7
37.2%
34
World Tour Contest Problem 1 — Solar Eclipse
Seasonal
5
1.7%
18
World Tour Contest Problem 2 — Fireplace Poker
Seasonal
5
1.1%
8
World Tour Contest Problem 3 — Translation
Seasonal
10p
0.1%
2
«
1
2
...
99
100
101
102
103
104
»