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
...
77
78
79
80
81
82
...
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 '19 S2 - Pretty Average Primes
Problem
Category
Points
AC %
Users
OCC '19 B2 - Cinematic
Olympiads School
5
16.2%
75
OCC '19 B3 - Difference
Olympiads School
5
22.5%
81
OCC '19 B4 - Bussing
Olympiads School
5
22.1%
15
OCC '19 B5 - Gold
Olympiads School
7
12.0%
20
OCC '19 B6 - Fiji water
Olympiads School
10p
16.6%
19
OCC '19 G1 - Top Coder
Olympiads School
10p
34.1%
43
OCC '19 G2 - A Guessing Game
Olympiads School
25p
7.3%
6
OCC '19 G3 - Binary Game
Olympiads School
25p
14.3%
5
OCC '19 G4 - Willson and Fighting
Olympiads School
30p
3.5%
3
OCC '19 G5 - King kobortor's Infrastructure
Olympiads School
17p
24.7%
23
OCC '19 G6 - Monkeys in a Tree
Olympiads School
30p
10.0%
9
OCC '19 S1 - Floor Planning
Uncategorized
3p
32.6%
60
OCC '19 S2 - Rimuru's Number Game
Uncategorized
5
27.2%
399
OCC '19 S3 - NAN Language
Olympiads School
7p
14.4%
31
OCC '19 S5 - Partitioning
Olympiads School
12p
8.2%
12
OCC '19 S6 - City Tolls
Olympiads School
17p
26.1%
4
The Odd Number
Uncategorized
7
11.5%
364
Overflow
Uncategorized
30p
2.4%
7
AQT's Tree Game
Uncategorized
30
4.8%
14
Palindrome Path
Olympiads School
20p
12.8%
9
Maximum Deviation Spanning Tree
Olympiads School
25p
4.0%
4
Bob's Farm
Uncategorized
20p
31.7%
8
Least Multiple
Olympiads School
10p
7.9%
29
Permutation Sorting
Olympiads School
20p
15.6%
12
Tree Journey
Olympiads School
12p
49.1%
26
Infinity Card Decks
Olympiads School
15p
16.9%
12
City Travel
Olympiads School
15p
18.3%
21
Olympic Scoring
Uncategorized
3
13.5%
127
Longest Up-Down Subsequence
POI
12p
29.6%
126
A Fenwick Tree Question
Olympiads School
15
30.0%
46
Matchings
POI
30p
15.6%
3
Mailing Origami
Uncategorized
20
9.1%
67
Returning Home
Uncategorized
10
23.2%
79
One Small Favour
Uncategorized
10p
1.2%
17
Another Small Favour
Uncategorized
15p
5.3%
9
OTHS Coding Competition 1 (Mock CCC) J1 - Math Assistance
Uncategorized
3
71.9%
353
OTHS Coding Competition 1 (Mock CCC) J2 - Wand Selection
Uncategorized
3
58.5%
320
OTHS Coding Competition 1 (Mock CCC) J3 - Explosion
Uncategorized
5p
35.7%
247
OTHS Coding Competition 1 (Mock CCC) J4 - Railgun
Uncategorized
7p
23.7%
168
OTHS Coding Competition 1 (Mock CCC) J5 - Scavenger Hunt
Uncategorized
10p
20.3%
69
BlueBook - Cross Country
BlueBook
3
43.1%
1279
BlueBook - Cost
BlueBook
3
20.5%
690
BlueBook - Direction
BlueBook
3
40.8%
871
BlueBook - Pay
BlueBook
3
20.5%
377
BlueBook - Change
BlueBook
3
9.0%
195
BlueBook - Times Tables
BlueBook
3
54.3%
1481
BlueBook - Max is Last
BlueBook
3
41.1%
506
BlueBook - Interest
BlueBook
3
28.5%
573
BlueBook - World Pop
BlueBook
3
28.3%
478
BlueBook - Power Base
BlueBook
3
39.7%
546
«
1
2
...
77
78
79
80
81
82
...
99
100
»