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
»
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 '24 J3 - Bronze Count
CCC '00 S1 - Slot Machines
CCC '19 S2 - Pretty Average Primes
Problem
Category
Points
AC %
▴
Users
CCCHK '08 J1 - Best fish
CCC
3
38.1%
805
CCCHK '08 J2 - Lucky Number
CCC
3
26.8%
843
CCC '04 S1 - Fix
CCC
5
32.6%
1198
CCCHK '08 J3 - Phone book
CCC
5p
34.6%
623
CCCHK '08 J4 - Tic-tac-toe
CCC
5p
10.5%
101
CCC '04 S2 - TopYodeller
CCC
5
21.5%
721
CCC '04 S3 - Spreadsheet
CCC
10
27.0%
614
CCC '04 S4 - Space Turtle
CCC
10p
19.7%
185
CCC '04 S5 - Super Plumber
CCC
10p
23.8%
402
CCC '18 J1 - Telemarketer or not?
CCC
3
40.1%
6861
CCC '18 J2 - Occupy parking
CCC
3
53.4%
5644
CCC '18 J3 - Are we there yet?
CCC
3
55.9%
3097
CCC '18 J5 - Choose your own path
CCC
7p
24.1%
1610
CCC '01 S2 - Spirals (Exact Version)
CCC
7
8.3%
105
CCC '07 J4 - Anagram Checker
CCC
5
37.2%
2124
CCC '19 S4 - Tourism
CCC
20p
7.7%
248
CCC '19 J1 - Winning Score
CCC
3
50.8%
6993
CCC '19 J2 - Time to Decompress
CCC
3
52.4%
3320
CCC '19 J3 - Cold Compress
CCC
5
46.2%
3154
CCC '19 J5 - Rule of Three
CCC
20p
0.7%
7
CCC '20 J1 - Dog Treats
CCC
3
56.1%
4001
CCC '20 J2 - Epidemiology
CCC
3
27.1%
3692
CCC '20 J3 - Art
CCC
3p
42.9%
2357
CCC '20 J4 - Cyclic Shifts
CCC
5p
45.7%
2284
CCC '20 S1 - Surmising a Sprinter's Speed
CCC
5p
42.9%
2048
CCC '20 S2 - Escape Room
CCC
10p
12.8%
1691
CCC '20 S5 - Josh's Double Bacon Deluxe
CCC
17p
29.6%
257
CCC '20 S2 - Escape Room (Hard)
CCC
15p
5.6%
55
CCCHK '15 S1 - Finding number of pairs
CCC
7p
13.7%
142
CCCHK '15 S2 - Matching Problem
CCC
10p
4.9%
14
CCCHK '15 S3 - Symmetric Cross
CCC
12p
15.8%
19
CCCHK '15 S4 - When to meet?
CCC
15p
20.0%
8
CCCHK '15 S5 - Can I pass the courses?
CCC
25p
5.0%
6
CCC '06 J5 - CCC Othello
CCC
10p
36.0%
228
CCC '02 S4 - Bridge Crossing (Hard)
CCC
20
8.6%
32
CCC '00 S5 - Sheep and Coyotes (Hard)
CCC
20
5.6%
21
CCC '21 J1 - Boiling Water
CCC
3p
53.8%
3149
CCC '21 J2 - Silent Auction
CCC
3p
51.2%
2735
CCC '21 J3 - Secret Instructions
CCC
5p
36.1%
2506
CCC '11 S2 - Multiple Choice
CCC
3
55.1%
6270
CCC '11 S4 - Blood Distribution
CCC
15p
7.7%
155
CCC '15 S1 - Zero That Out
CCC
3
51.0%
3875
CCC '15 S2 - Jerseys
CCC
5p
26.7%
1955
CCC '15 S3 - Gates
CCC
10p
18.7%
1775
CCC '15 S4 - Convex Hull
CCC
15p
27.4%
1158
CCC '15 S5 - Greedy For Pies
CCC
17p
23.4%
553
CCC '15 J1 - Special Day
CCC
3
36.8%
8358
CCC '15 J2 - Happy or Sad
CCC
3
37.1%
7050
CCC '15 J3 - Rövarspråket
CCC
5p
38.5%
2261
CCC '15 J4 - Wait Time
CCC
5
39.4%
1311
«
1
2
3
4
5
6
»