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
...
58
59
60
61
62
63
...
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
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
Arcadia Computing Contest 1 P4 - Cyclic Sorting
CCC '13 S1 - From 1987 to 2013
Problem
Category
Points
AC %
Users
GlobeX Cup '18 S2 - Test Scores
Uncategorized
7p
18.4%
114
GlobeX Cup '18 S3 - Playing With Bits
Uncategorized
10p
15.5%
48
GlobeX Cup '18 S4 - Reversed Dijkstra's
Uncategorized
10p
11.0%
43
GlobeX Cup '18 S5 - Math Bash
Uncategorized
17
11.6%
20
GlobeX Cup '19 J1 - Chess Master Winnie
Uncategorized
3p
55.5%
216
GlobeX Cup '19 J2 - Winnie Waifu Wars
Uncategorized
3p
15.6%
48
GlobeX Cup '19 J3 - Codex
Uncategorized
5p
15.8%
55
GlobeX Cup '19 J4 - Winni's Lonely Card Game
Uncategorized
5p
18.0%
67
GlobeX Cup '19 J5 - Aliens
Uncategorized
15
12.6%
20
GlobeX Cup '19 S1 - Planet Classification
Uncategorized
5p
33.5%
152
GlobeX Cup '19 S2 - Predicting Collisions
Uncategorized
7p
6.4%
70
GlobeX Cup '19 S3 - Ninjaclasher's Wrath
Uncategorized
12p
12.3%
20
GlobeX Cup '19 S4 - Ninjaclasher's Wrath 2
Uncategorized
25p
9.3%
13
GlobeX Cup '19 S5 - Alien Navigation
Uncategorized
20p
7.4%
16
Greater New York Regional 2012 - Mystery
ICPC
5
48.1%
24
Good Travels
Uncategorized
17
21.0%
72
Good Predictions
Uncategorized
10
32.7%
77
Good Strategy
Uncategorized
10
25.2%
70
Good Code
Uncategorized
15
12.3%
24
Good Debugging
Uncategorized
17
26.4%
131
Good Aim
Uncategorized
10
15.9%
35
Good Inflation
Uncategorized
20
15.3%
42
Good Celebration
Uncategorized
12
14.2%
28
Good Sets
Uncategorized
10p
27.6%
36
King Graff's Defense
Uncategorized
15p
7.3%
61
King Graff's Tolls
Uncategorized
17p
27.4%
56
King Graff's Trip
Uncategorized
15p
7.9%
48
Breaking the Friend Chain
Uncategorized
7
28.9%
188
Graph Contest 1 P1 - Counting Paths
Uncategorized
10
19.4%
96
Graph Contest 1 P2 - Shortest Path
Uncategorized
5
27.0%
413
Graph Contest 1 P3 - Counting Cycles
Uncategorized
10
16.0%
113
Graph Contest 2 P1 - Connected Components
Uncategorized
7
36.4%
257
Graph Contest 2 P2 - Directed Acyclic Graph
Uncategorized
10
17.4%
415
Graph Contest 2 P3 - Trees
Uncategorized
7
33.1%
149
Graph Contest 3 P1 - Travelling Salesmen
Uncategorized
7
33.7%
330
Graph Contest 3 P2 - Shortest Path
Uncategorized
10p
24.1%
295
Graph Contest 3 P3 - Cable TV
Uncategorized
7
38.5%
194
A Greedy Problem
Uncategorized
5p
28.3%
176
Grid 3
Uncategorized
20
36.8%
20
Hardcore Grinding
Uncategorized
5
38.2%
511
Guessing Game
Uncategorized
5p
33.3%
13
Hailstone Numbers
Uncategorized
3
56.8%
825
Grid 1.5
Uncategorized
10p
9.8%
45
Halloween '14 P1 - Rabbit Girls
Seasonal
3p
21.3%
545
Halloween '14 P2 - Cat Girls
Seasonal
12p
28.3%
224
Halloween '14 P3 - Dog Girls
Seasonal
15p
12.3%
81
Halloween '14 P4 - Fox Girls
Seasonal
20p
7.1%
55
Hard Question
Uncategorized
5
62.4%
94
Hashing
Uncategorized
10
21.9%
15
HCI '16 - BinaryBomb
Uncategorized
17p
44.4%
7
«
1
2
...
58
59
60
61
62
63
...
100
101
»