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
...
71
72
73
74
75
76
...
100
101
»
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
Problem types
Ad Hoc
Advanced Math
Brute Force
Capture the Flag
Constructive
Data Structures
Divide and Conquer
Dynamic Programming
Game Theory
Geometry
Graph Theory
Greedy Algorithms
Implementation
Interactive
Intermediate Math
Recursion
Regular Expressions
Simple Math
Simulation
String Algorithms
Uncategorized
Point range
Go
Random
Hot problems
Arcadia Computing Contest 1 P2 - Chemistry
Arcadia Computing Contest 1 P3 - ScanTron
Singularity Cup P2 - Reverse Substring Partitioning
Segment Tree Practice 1
Arcadia Computing Contest 1 P5 - Hacking Grades
COCI '13 Contest 2 #5 Paleta
CCC '13 S1 - From 1987 to 2013
Problem
Category
Types
Points
AC %
Users
ICPC NAQ 2016 J - Quick Estimates
ICPC
Implementation
3
51.5%
244
ICPC NAQ 2016 K - Robotopia
ICPC
Simple Math
5
19.1%
27
ICPC NAQ 2016 L - Unusual Darts
ICPC
Geometry
15
13.2%
12
Mock CCC '22 2 S1 - Kaguya Wants to Let Ishigami Pass
Mock CCC
Brute Force
5p
25.8%
181
Mock CCC '22 2 S2 - Kaguya Wants to Grow the Student Council
Mock CCC
Graph Theory
10p
35.7%
109
Mock CCC '22 2 S3 - Kaguya Wants to Analyze the Academy Anthem
Mock CCC
Data Structures
12p
7.8%
41
Mock CCC '22 2 S4 - Kaguya Wants to Build a Great Wall
Mock CCC
Geometry
15p
7.5%
8
Mock CCC '22 2 S5 - Kaguya Wants to go Window Shopping with Kei Shirogane
Mock CCC
Dynamic Programming
30p
5.5%
5
Mock CCC '23 1 S1 - Composite Fibonacci Numbers
Mock CCC
Brute Force
5p
13.0%
150
Mock CCC '23 1 S2 - Keenan Hates Triangles
Mock CCC
Brute Force
5p
22.1%
98
Mock CCC '23 1 S3 - Richard The Penguin
Mock CCC
Brute Force
10p
5.9%
27
Mock CCC '23 1 S4 - Roger Says Yabe
Mock CCC
Graph Theory
15p
7.2%
20
Mock CCC '23 1 S5 - The Obligatory Data Structures Problem
Mock CCC
Data Structures
25p
14.0%
10
Mock CCC '23 2 S1 - Composite Fibonacci Numbers
Mock CCC
Brute Force
3p
23.3%
285
Mock CCC '23 2 S2 - Keenan Hates Triangles
Mock CCC
Greedy Algorithms
7p
2.2%
38
Mock CCC '23 2 S3 - Richard The Penguin
Mock CCC
Simple Math
10p
3.9%
13
Mock CCC '23 2 S4 - Roger Says Yabe
Mock CCC
Graph Theory
15p
19.0%
7
Mock CCC '23 2 S5 - The Obligatory Data Structures Problem
Mock CCC
Data Structures
25p
11.5%
4
Mock CCC '18 Contest 1 J1 - A String Problem
Mock CCC
Brute Force
3p
45.4%
516
Mock CCC '18 Contest 1 J2 - A Substring Problem
Mock CCC
Brute Force
3p
27.4%
349
Mock CCC '18 Contest 1 J3/S1 - A Math Problem
Mock CCC
Simple Math
5p
24.0%
376
Mock CCC '18 Contest 1 J4/S2 - A Square Problem
Mock CCC
Implementation
5
34.5%
458
Mock CCC '18 Contest 1 J5/S3 - A Simulation Problem
Mock CCC
Simulation
7p
21.6%
123
Mock CCC '18 Contest 1 S4 - A Graph Problem
Mock CCC
Graph Theory
12p
20.2%
103
Mock CCC '18 Contest 1 S5 - A Palindrome Problem
Mock CCC
Dynamic Programming
15p
8.5%
18
Mock CCC '18 Contest 2 J1 - An Arithmetic Problem
Mock CCC
Implementation
3p
48.9%
451
Mock CCC '18 Contest 2 J2 - A Software Engineering Task
Mock CCC
Implementation
3p
36.6%
172
Mock CCC '18 Contest 2 J3/S1 - An Array Problem
Mock CCC
Simulation
7p
16.1%
378
Mock CCC '18 Contest 2 J4/S2 - A Geometry Problem
Mock CCC
Implementation
7p
17.5%
122
Mock CCC '18 Contest 2 J5/S3 - A Coloring Problem
Mock CCC
Dynamic Programming
10p
19.5%
57
Mock CCC '18 Contest 2 S4 - A Tree Problem
Mock CCC
Graph Theory
12p
17.4%
66
Mock CCC '18 Contest 2 S5 - A Link/Cut Tree Problem
Mock CCC
Data Structures
,
Graph Theory
15p
23.0%
94
Mock CCC '18 Contest 3 J1 - A Sum Problem
Mock CCC
Implementation
3p
61.0%
654
Mock CCC '18 Contest 3 J2 - A Palindrome Problem
Mock CCC
Brute Force
3p
24.1%
255
Mock CCC '18 Contest 3 J3/S1 - A String Problem
Mock CCC
Brute Force
5p
35.7%
368
Mock CCC '18 Contest 3 J4/S2 - A Median Problem
Mock CCC
Implementation
5p
36.4%
488
Mock CCC '18 Contest 3 J5/S3 - A Cookie-Cutter Problem
Mock CCC
Geometry
10p
10.1%
60
Mock CCC '18 Contest 3 S4 - A Graph Problem
Mock CCC
Graph Theory
10
25.7%
214
Mock CCC '18 Contest 3 S5 - A Rage Tree Problem
Mock CCC
Data Structures
20p
11.2%
46
Mock CCC '18 Contest 5 J1 - Looking for the CCC
Mock CCC
String Algorithms
3p
45.0%
591
Mock CCC '18 Contest 5 J2 - Smallest Mode
Mock CCC
Brute Force
3p
26.7%
242
Mock CCC '18 Contest 5 J3/S1 - Median Triples
Mock CCC
Brute Force
5p
29.5%
237
Mock CCC '18 Contest 5 J4/S2 - Reverse Sort
Mock CCC
Implementation
5p
43.7%
267
Mock CCC '18 Contest 5 J5/S3 - Directed Graph Connectivity
Mock CCC
Graph Theory
7p
42.0%
534
Mock CCC '18 Contest 5 S4 - Sparse Binary String Counting
Mock CCC
Simple Math
10p
18.1%
93
Mock CCC '18 Contest 5 S5 - California Boggle
Mock CCC
Graph Theory
20p
10.6%
35
Mock CCC '19 Contest 1 J1 - Pusheen's Report Card
Mock CCC
Implementation
3p
36.2%
1005
Mock CCC '19 Contest 1 J2 - Pusheen OCR
Mock CCC
String Algorithms
3p
55.0%
748
Mock CCC '19 Contest 1 J3 - Pusheen Eats Tuna Sashimi and Tuna Nigiri
Mock CCC
Brute Force
3p
19.4%
387
Mock CCC '19 Contest 1 J4 - Pusheen Plays Neko Atsume
Mock CCC
Implementation
3p
19.5%
320
«
1
2
...
71
72
73
74
75
76
...
100
101
»