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
...
75
76
77
78
79
80
...
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
Singularity Cup P2 - Reverse Substring Partitioning
CCC '20 S4 - Swapping Seats
Strict Evaluation
CCC '20 J4 - Cyclic Shifts
CCC '24 J3 - Bronze Count
Singularity Cup P1 - Maximum Permutation Product
CCC '17 S4 - Minimum Cost Flow
Problem
Category
Points
AC %
Users
NOI '14 P6 - Ticket Purchase
China NOI
30p
12.8%
39
NOI '15 P1 - Automated Program Analyzer
China NOI
12p
18.7%
102
NOI '15 P2 - Software Package Manager
China NOI
20p
30.7%
55
NOI '15 P3 - Sushi Dinner
China NOI
25p
14.0%
26
NOI '15 P4 - Homeric Epics
China NOI
25p
28.0%
30
NOI '15 P5 - Cocktail Party
China NOI
25p
45.5%
17
NOI '15 P6 - Farm
China NOI
25p
6.1%
6
NOI '16 P1 - Good Partitions
China NOI
20p
8.4%
7
NOI '16 P2 - Grid
China NOI
25p
7.4%
6
NOI '16 P3 - The Beauty of Cycles
China NOI
30p
3.4%
1
NOI '16 P4 - Interval
China NOI
20p
22.5%
40
NOI '16 P5 - Drinking Water
China NOI
20p
0.7%
1
NOI '16 P6 - Computation
China NOI
30p
2.2%
3
NOI '17 P1 - Integers
China NOI
20p
27.3%
11
NOI '17 P2 - Queue
China NOI
20p
38.7%
9
NOI '17 P3 - Pool
China NOI
30p
44.0%
6
NOI '17 P4 - Game
China NOI
25p
21.1%
3
NOI '17 P5 - Vegetables
China NOI
25p
71.4%
5
NOI '17 P6 - Magic
China NOI
40p
40.0%
2
NOI '18 Problem 1 - Return
China NOI
17p
20.0%
11
NOI '18 Problem 2 - Inverse
China NOI
25p
14.7%
5
NOI '18 Problem 3 - Name
China NOI
25p
5.9%
2
NOI '19 P1 - Route
China NOI
25p
12.4%
58
NOI '19 P2 - Robot
China NOI
25p
6.5%
8
NOI '19 P3 - Sequence
China NOI
25p
8.8%
13
NOI '19 P4 - Jump
China NOI
25p
13.1%
44
NOI '19 P5 - Landlords
China NOI
25p
22.3%
17
NOI '19 P6 - Explore
China NOI
25p
2.5%
11
NOI '20 P1 - Delicacy
China NOI
25p
13.4%
34
NOI '20 P2 - Destiny
China NOI
25p
16.2%
13
NOI '20 P3 - Tears
China NOI
40p
11.0%
8
NOI '20 P4 - Dish
China NOI
20p
7.8%
21
NOI '20 P5 - Surreal
China NOI
17p
11.3%
19
NOI '20 P6 - Road
China NOI
45p
3.3%
1
NOI '21 P1 - Light Heavy Edges
China NOI
25p
8.8%
27
NOI '21 P2 - Intersecting Paths
China NOI
25p
24.2%
18
NOI '21 P3 - Celebration
China NOI
25p
10.3%
23
NOI '21 P4 - Quantum Communication
China NOI
25p
9.7%
23
NOI '21 P5 - The Locked Box
China NOI
25p
12.3%
9
NOI '21 P6 - Robot Game
China NOI
25p
22.5%
4
NOI '22 P1 - Major
China NOI
25p
5.2%
13
NOI '22 P2 - Stone
China NOI
30p
25.0%
3
NOI '22 P3 - Count
China NOI
40p
0.0%
0
NOI '22 P4 - Challenge NPC
China NOI
25p
28.8%
6
NOI '22 P5 - Bubble Sort
China NOI
35p
1.7%
1
NOI '22 P6 - Quadratic Integer Program
China NOI
40p
0.0%
0
NOI '23 P1 - Square Coloring
China NOI
17p
25.9%
12
NOI '23 P2 - Osmanthus Tree
China NOI
25p
20.7%
6
NOI '23 P3 - Depth First Search
China NOI
35p
27.3%
2
NOI '23 P4 - Trade
China NOI
20p
32.4%
10
«
1
2
...
75
76
77
78
79
80
...
100
101
»