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
...
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
Arcadia Computing Contest 1 P2 - Chemistry
Arcadia Computing Contest 1 P3 - ScanTron
Arcadia Computing Contest 1 P5 - Hacking Grades
Arcadia Computing Contest 1 P4 - Cyclic Sorting
CCC '13 J4 - Time on task
String Finding
CCC '13 S1 - From 1987 to 2013
Problem
Category
Points
AC %
Users
CCC '13 S3 - Chances of Winning
CCC
10
41.5%
1416
CCC '13 S5 - Factor Solitaire
CCC
15p
42.0%
759
CCC '14 S4 - Tinted Glass Window
CCC
15p
29.3%
697
CCC '15 J5 - π-day
CCC
10p
27.5%
1542
CCC '15 S3 - Gates
CCC
10p
18.9%
1864
CCC '15 S4 - Convex Hull
CCC
15p
27.4%
1197
CCC '15 S5 - Greedy For Pies
CCC
17p
23.7%
573
CCC '16 S3 - Phonomenal Reviews
CCC
12p
26.0%
1174
CCC '16 S4 - Combining Riceballs
CCC
15p
28.9%
1008
CCC '17 S4 - Minimum Cost Flow
CCC
17p
14.0%
792
CCC '18 S3 - RoboThieves
CCC
12p
14.2%
1174
CCC '18 S4 - Balanced Trees
CCC
15p
17.1%
604
CCC '19 S3 - Arithmetic Square
CCC
12p
13.8%
533
CCC '20 J4 - Cyclic Shifts (Hard)
CCC
12p
3.7%
45
CCC '20 S2 - Escape Room
CCC
10p
12.7%
1785
CCC '20 S2 - Escape Room (Hard)
CCC
15p
5.3%
57
CCC '20 S3 - Searching for Strings
CCC
12p
9.3%
973
CCC '20 S4 - Swapping Seats
CCC
12p
25.2%
527
CCC '20 S5 - Josh's Double Bacon Deluxe
CCC
17p
29.7%
266
CCC '21 S3 - Lunch Concert
CCC
10p
25.0%
1080
CCC '21 S4 - Daily Commute
CCC
12p
26.0%
618
CCC '21 S5 - Math Homework
CCC
15p
25.3%
452
CCC '22 J5 - Square Pool
CCC
10p
20.6%
521
CCC '22 S3 - Good Samples
CCC
10p
18.2%
706
CCC '22 S4 - Good Triplets
CCC
15p
28.2%
340
CCC '22 S5 - Good Influencers
CCC
17p
32.2%
208
CCC '23 J5 - CCC Word Hunt
CCC
10p
24.7%
598
CCC '23 S3 - Palindromic Poster
CCC
10p
15.5%
464
CCC '23 S4 - Minimum Cost Roads
CCC
15p
19.4%
287
CCC '24 S3 - Swipe
CCC
10p
16.1%
278
CCC '24 S4 - Painting Roads
CCC
12p
35.0%
228
CCC '96 S4 - When in Rome
CCC
10
33.1%
585
CCC '97 S5 - Long Division
CCC
10
10.6%
74
CCC '98 S4 - Lottery
CCC
10
9.8%
98
CCC '98 S5 - Mountain Passage
CCC
10
13.2%
157
CCC '99 S4 - A Knightly Pursuit
CCC
12
18.5%
366
CCC '99 S5 - Letter Arithmetic
CCC
12
16.8%
81
CCCJQR P5
Seasonal
15p
20.9%
22
CCO '00 P1 - Subsets
CCO
10
35.0%
277
CCO '00 P2 - Ransom Note
CCO
12p
8.0%
7
CCO '00 P3 - The Game Of 31
CCO
15
56.5%
12
CCO '00 P6 - Extension Cords
CCO
12
17.6%
7
CCO '01 P1 - The Monkey Dance
CCO
10
43.6%
270
CCO '01 P2 - Coke or Chocolate Milk
CCO
12
17.1%
11
CCO '01 P3 - Partitions
CCO
12
34.4%
65
CCO '01 P4 - Breaking Level (Standard I/O)
CCO
12
8.4%
42
CCO '01 P6 - Election Night
CCO
15
15.2%
47
CCO '02 P1 - Spam
CCO
12
44.4%
22
CCO '02 P2 - Game Show Math
CCO
12
22.0%
44
CCO '02 P3 - Return To Blind Man's Bluff
CCO
12
12.2%
16
«
1
2
3
4
5
6
7
8
...
38
39
»