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)
09:55:51
Register now »
*has extra registration
→ Filter Problems
Difficulty:
—
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
995E
Number Clicker
divide and conquer
,
graphs
,
meet-in-the-middle
,
number theory
2700
x648
995D
Game
math
2500
x752
993F
The Moral Dilemma
3200
x60
993D
Compute Power
binary search
,
dp
,
greedy
2500
x634
992E
Nastya and King-Shamans
binary search
,
data structures
2500
x1346
991F
Concise and clear
brute force
,
greedy
,
implementation
,
math
2700
x300
990G
GCD Counting
divide and conquer
,
dp
,
dsu
,
number theory
,
trees
2400
x1787
990F
Flow Control
dfs and similar
,
dp
,
greedy
,
trees
2400
x878
989E
A Trance of Nightfall
dp
,
geometry
,
matrices
,
probabilities
2700
x230
989D
A Shade of Moonlight
binary search
,
geometry
,
math
,
sortings
,
two pointers
2500
x509
986F
Oppa Funcan Style Remastered
graphs
,
math
,
number theory
,
shortest paths
3300
x572
986E
Prince's Problem
brute force
,
data structures
,
math
,
number theory
,
trees
2800
x784
986D
Perfect Encoding
fft
,
math
3100
x326
986C
AND Graph
bitmasks
,
dfs and similar
,
dsu
,
graphs
2500
x2271
985G
Team Players
combinatorics
2700
x472
983E
NN country
binary search
,
data structures
,
trees
2800
x918
983D
Arkady and Rectangles
data structures
3300
x366
983C
Elevator
dp
,
graphs
,
shortest paths
2400
x809
982F
The Meeting Place Cannot Be Changed
dfs and similar
,
graphs
2700
x189
982E
Billiard
geometry
,
number theory
2600
x695
981H
K Paths
combinatorics
,
data structures
,
dp
,
fft
,
math
3100
x268
981G
Magic multisets
data structures
2500
x631
981F
Round Marriage
binary search
,
graph matchings
,
greedy
2500
x705
980F
Cactus to Tree
dp
,
graphs
,
trees
2900
x194
979E
Kuro and Topological Parity
dp
2400
x607
976F
Minimal k-covering
flows
,
graphs
2500
x564
976D
Degree Set
constructive algorithms
,
graphs
,
implementation
2500
x674
975E
Hag's Khashba
geometry
2600
x302
963E
Circles of Waiting
math
3100
x541
963D
Frequency of String
hashing
,
string suffix structures
,
strings
2500
x1888
963C
Cutting Rectangle
brute force
,
math
,
number theory
2600
x563
962G
Visible Black Areas
data structures
,
dsu
,
geometry
,
trees
2800
x177
962F
Simple Cycles Edges
dfs and similar
,
graphs
,
trees
2400
x1276
961G
Partitions
combinatorics
,
math
,
number theory
2700
x1326
961F
k-substrings
binary search
,
hashing
,
string suffix structures
2700
x706
960H
Santa's Gift
data structures
,
trees
3100
x260
960G
Bandit Blues
combinatorics
,
dp
,
fft
,
math
2900
x1054
959F
Mahmoud and Ehab and yet another xor task
bitmasks
,
dp
,
math
,
matrices
2400
x2020
958F3
Lightsabers (hard)
fft
2600
x680
958E3
Guard Duty (hard)
geometry
2700
x182
958D2
Hyperspace Jump (hard)
2700
x87
958C3
Encryption (hard)
data structures
,
dp
2500
x530
958A3
Death Stars (hard)
3100
x45
955F
Heaps
dp
,
trees
2600
x366
955E
Icicles
2900
x91
955D
Scissors
brute force
,
strings
2600
x462
954H
Path Counting
combinatorics
,
dp
2500
x576
952F
2 + 2 != 4
2400
x378
949F
Astronomy
geometry
,
probabilities
3300
x58
949E
Binary Cards
brute force
2700
x631
946G
Almost Increasing Array
data structures
,
dp
2500
x661
946F
Fibonacci String Subsequences
combinatorics
,
dp
,
matrices
2400
x538
940F
Machine Learning
brute force
,
data structures
2600
x2524
939F
Cutlet
data structures
,
dp
2400
x909
938G
Shortest Path Queries
bitmasks
,
data structures
,
dsu
,
graphs
2900
x875
938F
Erasing Substrings
bitmasks
,
dp
,
greedy
2700
x476
936E
Iqea
data structures
,
dfs and similar
,
divide and conquer
,
dsu
,
shortest paths
,
trees
3400
x186
936D
World of Tank
dp
,
greedy
3000
x328
935F
Fafa and Array
data structures
,
greedy
2600
x361
933E
A Preponderant Reunion
constructive algorithms
,
dp
3200
x186
933D
A Creative Cutout
brute force
,
combinatorics
,
math
2900
x283
933C
A Colourful Prospect
geometry
,
graphs
2700
x557
932G
Palindrome Partition
dp
,
string suffix structures
,
strings
2900
x905
932F
Escape Through Leaf
data structures
,
dp
,
geometry
2700
x2801
932E
Team Work
combinatorics
,
dp
,
math
2400
x2764
930E
Coins Exhibition
data structures
,
dp
,
math
2900
x416
930D
Game with Tokens
data structures
,
games
,
implementation
2500
x403
929D
Пограничные врата
2400
x151
927A
BuberPool Taxi Optimization
*special problem
,
interactive
2900
x1
925F
Parametric Circulation
binary search
,
flows
3100
x109
925E
May Holidays
data structures
,
trees
2900
x380
925D
Aztec Catacombs
constructive algorithms
2600
x481
924F
Minimal Subset Difference
dp
3200
x164
924E
Wardrobe
dp
,
greedy
2700
x510
924D
Contact ATC
2500
x827
923F
Public Service
constructive algorithms
,
graphs
,
trees
3200
x74
923E
Perpetual Subtraction
fft
,
math
,
matrices
3100
x445
923D
Picking Strings
constructive algorithms
,
implementation
,
strings
2500
x1181
922F
Divisibility
constructive algorithms
,
dp
,
greedy
,
number theory
2400
x629
92114
Labyrinth-14
3200
92113
Labyrinth-13
3200
92112
Labyrinth-12
3200
92111
Labyrinth-11
3200
92110
Labyrinth-10
3200
92109
Labyrinth-9
3200
92108
Labyrinth-8
3200
92107
Labyrinth-7
3200
92106
Labyrinth-6
3200
92105
Labyrinth-5
3200
92104
Labyrinth-4
3200
92103
Labyrinth-3
3200
92102
Labyrinth-2
3200
92101
Labyrinth-1
3200
920D
Tanks
dp
,
greedy
,
implementation
2400
x695
919F
A Game With Numbers
games
,
graphs
,
shortest paths
2600
x330
917E
Upside Down
data structures
,
string suffix structures
,
strings
,
trees
3400
x125
917D
Stranger Trees
dp
,
math
,
matrices
,
trees
2600
x1109
917C
Pollywog
combinatorics
,
dp
,
matrices
2900
x390
916E
Jamie and Tree
data structures
,
trees
2400
x1620
915F
Imbalance Value of a Tree
data structures
,
dsu
,
graphs
,
trees
2400
x2400
←
1
2
...
14
15
16
17
18
...
25
26
→
User lists
Name