Enter
|
Register
Home
Top
Catalog
Contests
Gym
Problemset
Groups
Rating
Edu
API
Calendar
Help
→ Pay attention
Before contest
Pinely Round 4 (Div. 1 + Div. 2)
38:06:28
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
probabilities
combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
Add tag
Main
acmsguru
|
Problems
Submit
Status
Standings
Custom test
Problems
#
Name
1578G
Game of Chance
math
,
probabilities
3500
x36
1761G
Centroid Guess
interactive
,
probabilities
,
trees
3500
x104
1477F
Nezzar and Chocolate Bars
combinatorics
,
fft
,
math
,
probabilities
3500
x129
1479E
School Clubs
dp
,
fft
,
math
,
number theory
,
probabilities
3500
x201
1835E
Old Mobile
combinatorics
,
dp
,
probabilities
3500
x220
1190F
Tokitsukaze and Powers
number theory
,
probabilities
3400
x92
913H
Don't Exceed
math
,
probabilities
3400
x124
949F
Astronomy
geometry
,
probabilities
3300
x58
1949A
Grove
brute force
,
dfs and similar
,
dp
,
geometry
,
probabilities
3300
x98
618G
Combining Slimes
dp
,
math
,
matrices
,
probabilities
3300
x232
1148G
Gold Experience
constructive algorithms
,
graphs
,
math
,
number theory
,
probabilities
3300
x319
1556H
DIY Tree
graphs
,
greedy
,
math
,
probabilities
3300
x362
1210F2
Marek and Matching (hard version)
brute force
,
probabilities
3200
x194
1819E
Roads in E City
interactive
,
math
,
probabilities
,
trees
3200
x276
1081G
Mergesort Strikes Back
math
,
probabilities
3200
x344
553E
Kyoya and Train
dp
,
fft
,
graphs
,
math
,
probabilities
3200
x545
1349D
Slime and Biscuits
math
,
probabilities
3200
x882
1912F
Fugitive Frenzy
math
,
probabilities
3100
x109
1210F1
Marek and Matching (easy version)
brute force
,
probabilities
3100
x191
1951G
Clacking Balls
combinatorics
,
math
,
probabilities
3100
x307
1784E
Infinite Game
brute force
,
combinatorics
,
dp
,
games
,
probabilities
3100
x313
1067D
Computer Game
dp
,
greedy
,
math
,
probabilities
3100
x376
1924E
Paper Cutting Again
combinatorics
,
probabilities
3100
x414
1286D
LCC
data structures
,
math
,
matrices
,
probabilities
3100
x571
1340E
Nastya and Bees
graphs
,
interactive
,
probabilities
3000
x53
1236F
Alice and the Cactus
dfs and similar
,
graphs
,
math
,
probabilities
3000
x173
1526F
Median Queries
constructive algorithms
,
interactive
,
probabilities
3000
x253
303E
Random Ranking
dp
,
math
,
probabilities
3000
x316
1842H
Tenzing and Random Real Numbers
bitmasks
,
dp
,
graphs
,
math
,
probabilities
3000
x622
1438F
Olha and Igor
interactive
,
probabilities
,
trees
3000
x625
1267G
Game Relics
math
,
probabilities
3000
x637
1361E
James and the Chase
dfs and similar
,
graphs
,
probabilities
,
trees
3000
x667
1392H
ZS Shuffles Cards
combinatorics
,
dp
,
math
,
probabilities
3000
x696
739E
Gosha is hunting
brute force
,
data structures
,
dp
,
flows
,
math
,
probabilities
,
sortings
3000
x2115
1571H
Laser Beams
*special problem
,
geometry
,
probabilities
2900
x48
679D
Bear and Chase
brute force
,
dfs and similar
,
graphs
,
implementation
,
math
,
probabilities
2900
x313
1847E
Triangle Platinum?
brute force
,
combinatorics
,
implementation
,
interactive
,
math
,
probabilities
2900
x322
1562F
Tubular Bells
interactive
,
math
,
number theory
,
probabilities
2900
x388
1630E
Expected Components
combinatorics
,
math
,
number theory
,
probabilities
2900
x433
1705F
Mark and the Online Exam
bitmasks
,
constructive algorithms
,
interactive
,
probabilities
2900
x589
1198F
GCD Groups 2
greedy
,
number theory
,
probabilities
2900
x847
1264D2
Beautiful Bracket Sequence (hard version)
combinatorics
,
probabilities
2900
x880
1479D
Odd Mineral Resource
binary search
,
bitmasks
,
brute force
,
data structures
,
probabilities
,
trees
2900
x998
364D
Ghd
brute force
,
math
,
probabilities
2900
x2012
802F
Marmots (hard)
math
,
probabilities
2800
x121
335E
Counting Skyscrapers
dp
,
math
,
probabilities
2800
x219
277D
Google Code Jam
dp
,
probabilities
2800
x333
1826F
Fading into Fog
geometry
,
interactive
,
math
,
probabilities
2800
x346
1773G
Game of Questions
bitmasks
,
combinatorics
,
dp
,
fft
,
math
,
probabilities
2800
x349
446D
DZY Loves Games
math
,
matrices
,
probabilities
2800
x388
559D
Randomizer
combinatorics
,
geometry
,
probabilities
2800
x430
913F
Strongly Connected Tournament
dp
,
graphs
,
math
,
probabilities
2800
x634
1874D
Jellyfish and Miku
divide and conquer
,
dp
,
math
,
probabilities
2800
x693
1626F
A Random Code Problem
combinatorics
,
dp
,
math
,
number theory
,
probabilities
2800
x723
1316F
Battalion Strength
data structures
,
divide and conquer
,
probabilities
2800
x798
1842G
Tenzing and Random Operations
combinatorics
,
dp
,
math
,
probabilities
2800
x980
1746F
Kazaee
data structures
,
hashing
,
probabilities
2800
x1630
107E
Darts
geometry
,
probabilities
2700
x128
989E
A Trance of Nightfall
dp
,
geometry
,
matrices
,
probabilities
2700
x230
293D
Ksusha and Square
geometry
,
math
,
probabilities
,
two pointers
2700
x236
457D
Bingo!
combinatorics
,
math
,
probabilities
2700
x276
1957F2
Frequency Mismatch (Hard Version)
binary search
,
data structures
,
dfs and similar
,
hashing
,
probabilities
,
trees
2700
x364
183D
T-shirt
dp
,
greedy
,
probabilities
2700
x400
1578M
The Mind
constructive algorithms
,
interactive
,
probabilities
2700
x441
1510I
Is It Rated?
greedy
,
interactive
,
math
,
probabilities
2700
x463
98E
Help Shrek and Donkey
dp
,
games
,
math
,
probabilities
2700
x467
623D
Birthday
greedy
,
math
,
probabilities
2700
x471
643E
Bear and Destroying Subtrees
dp
,
math
,
probabilities
,
trees
2700
x587
113D
Museum
math
,
matrices
,
probabilities
2700
x659
464D
World of Darkraft - 2
dp
,
probabilities
2700
x663
1295F
Good Contest
combinatorics
,
dp
,
probabilities
2700
x1175
1254D
Tree Queries
data structures
,
probabilities
,
trees
2700
x1187
605E
Intergalaxy Trips
probabilities
,
shortest paths
2700
x1362
1364E
X-OR
bitmasks
,
constructive algorithms
,
divide and conquer
,
interactive
,
probabilities
2700
x1405
1970D2
Arithmancy (Medium)
constructive algorithms
,
interactive
,
probabilities
,
strings
2600
x170
1765C
Card Guessing
combinatorics
,
dp
,
probabilities
2600
x376
1765G
Guess the String
constructive algorithms
,
interactive
,
probabilities
2600
x380
1957F1
Frequency Mismatch (Easy Version)
binary search
,
data structures
,
divide and conquer
,
hashing
,
probabilities
,
trees
2600
x417
229E
Gifts
combinatorics
,
dp
,
math
,
probabilities
2600
x456
248E
Piglet's Birthday
dp
,
math
,
probabilities
2600
x572
1530F
Bingo
bitmasks
,
combinatorics
,
dp
,
math
,
probabilities
2600
x765
1354G
Find a Gift
binary search
,
interactive
,
probabilities
2600
x765
1153F
Serval and Bonus Problem
combinatorics
,
dp
,
math
,
probabilities
2600
x771
1380G
Circular Dungeon
greedy
,
math
,
probabilities
2600
x778
1172C2
Nauuo and Pictures (hard version)
dp
,
probabilities
2600
x829
1823F
Random Walk
dp
,
graphs
,
math
,
probabilities
,
trees
2600
x838
494C
Helping People
dp
,
probabilities
2600
x845
482C
Game with Strings
bitmasks
,
dp
,
probabilities
2600
x891
1835C
Twin Clusters
bitmasks
,
brute force
,
constructive algorithms
,
math
,
probabilities
2600
x959
1264D1
Beautiful Bracket Sequence (easy version)
combinatorics
,
dp
,
probabilities
2600
x1206
258D
Little Elephant and Broken Sorting
dp
,
math
,
probabilities
2600
x1241
1523E
Crypto Lights
combinatorics
,
dp
,
math
,
probabilities
2600
x1592
1278F
Cards
combinatorics
,
dp
,
math
,
number theory
,
probabilities
2600
x1811
896C
Willem, Chtholly and Seniorious
data structures
,
probabilities
2600
x3276
424E
Colored Jenga
dfs and similar
,
dp
,
probabilities
2500
x130
68D
Half-decay tree
data structures
,
divide and conquer
,
dp
,
math
,
probabilities
2500
x454
712E
Memory and Casinos
data structures
,
math
,
probabilities
2500
x610
123E
Maze
dfs and similar
,
dp
,
probabilities
,
trees
2500
x707
1187F
Expected Square Beauty
dp
,
math
,
probabilities
2500
x857
1737E
Ela Goes Hiking
combinatorics
,
dp
,
math
,
probabilities
2500
x910
←
1
2
3
→
User lists
Name