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Pinely Round 4 (Div. 1 + Div. 2)
04:20:58
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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
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Custom test
Problems
#
Name
1190B
Tokitsukaze, CSL and Stone Game
games
1800
x6374
1190A
Tokitsukaze and Discard Items
implementation
,
two pointers
1400
x9307
1189C
Candies!
data structures
,
dp
,
implementation
,
math
1400
x10493
1188A1
Add on a Tree
trees
1600
x8352
1187C
Vasya And Array
constructive algorithms
,
greedy
,
implementation
1800
x6300
1187B
Letters Shop
binary search
,
implementation
,
strings
1300
x12124
1186D
Vus the Cossack and Numbers
constructive algorithms
,
greedy
,
math
1500
x8893
1186C
Vus the Cossack and Strings
implementation
,
math
1800
x6043
1185D
Extra Element
implementation
,
math
1700
x6667
1185C2
Exam in BerSU (hard version)
brute force
,
data structures
,
greedy
,
math
1700
x7414
1184E1
Daleks' Invasion (easy)
graphs
,
trees
1900
x1586
1184D1
Parallel Universes (Easy)
implementation
1600
x2498
1184C1
Heidi and the Turing Test (Easy)
implementation
1600
x2284
1184B1
The Doctor Meets Vader (Easy)
binary search
,
sortings
1400
x5182
1183H
Subsequences (hard version)
dp
,
strings
1900
x3106
1183D
Candy Box (easy version)
greedy
,
sortings
1400
x13826
1183C
Computer Game
binary search
,
math
1400
x13849
1182C
Beautiful Lyrics
data structures
,
greedy
,
strings
1700
x4401
1182B
Plus from Picture
dfs and similar
,
implementation
,
strings
1300
x11070
1181C
Flag
brute force
,
combinatorics
,
dp
,
implementation
1900
x3104
1181B
Split a Number
greedy
,
implementation
,
strings
1500
x6240
1180B
Nick and Array
greedy
,
implementation
1500
x9491
1179B
Tolik and His Uncle
constructive algorithms
1800
x4325
1179A
Valeriy and Deque
data structures
,
implementation
1500
x10330
1178E
Archaeology
brute force
,
constructive algorithms
,
greedy
,
strings
1900
x4290
1178D
Prime Graph
constructive algorithms
,
greedy
,
math
,
number theory
1500
x7347
1178C
Tiles
combinatorics
,
greedy
,
math
1300
x11774
1178B
WOW Factor
dp
,
strings
1300
x14775
1177B
Digits Sequence (Hard Edition)
binary search
,
divide and conquer
,
implementation
1800
x2460
1176E
Cover it!
dfs and similar
,
dsu
,
graphs
,
shortest paths
,
trees
1700
x10804
1176D
Recover it!
dfs and similar
,
graphs
,
greedy
,
number theory
,
sortings
1800
x5214
1176C
Lose it!
dp
,
greedy
,
implementation
1300
x14013
1175D
Array Splitting
greedy
,
sortings
1900
x6095
1175C
Electrification
binary search
,
brute force
,
greedy
1600
x6742
1175B
Catch Overflow!
data structures
,
expression parsing
,
implementation
1600
x10475
1174D
Ehab and the Expected XOR Problem
bitmasks
,
constructive algorithms
1900
x4656
1174C
Ehab and a Special Coloring Problem
constructive algorithms
,
number theory
1300
x11907
1172B
Nauuo and Circle
combinatorics
,
dfs and similar
,
dp
,
trees
1900
x3978
1172A
Nauuo and Cards
greedy
,
implementation
1800
x4922
1169B
Pairs
graphs
,
implementation
1500
x9623
1168B
Good Triple
brute force
,
two pointers
1900
x3538
1168A
Increasing by Modulo
binary search
,
greedy
1700
x6669
1167D
Bicolored RBS
constructive algorithms
,
greedy
1500
x6896
1167C
News Distribution
dfs and similar
,
dsu
,
graphs
1400
x17755
1167B
Lost Numbers
brute force
,
divide and conquer
,
interactive
,
math
1400
x11049
1166C
A Tale of Two Lands
binary search
,
sortings
,
two pointers
1500
x9291
1165E
Two Arrays and Sum of Functions
greedy
,
math
,
sortings
1600
x8166
1165D
Almost All Divisors
math
,
number theory
1600
x15678
1165C
Good String
greedy
1300
x12805
1163C2
Power Transmission (Hard Edition)
data structures
,
geometry
,
implementation
,
math
1900
x3566
1163C1
Power Transmission (Easy Edition)
brute force
,
geometry
1900
x3281
1163B2
Cat Party (Hard Edition)
data structures
,
implementation
1600
x7149
1163B1
Cat Party (Easy Edition)
data structures
,
implementation
1500
x6916
1162B
Double Matrix
brute force
,
greedy
1400
x5787
1159B
Expansion coefficient of the array
implementation
,
math
1300
x7030
1158A
The Party and Sweets
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
sortings
,
two pointers
1500
x6991
1157E
Minimum Array
binary search
,
data structures
,
greedy
1700
x8277
1157D
N Problems During K Days
constructive algorithms
,
greedy
,
math
1900
x3705
1157C2
Increasing Subsequence (hard version)
greedy
1700
x7916
1157C1
Increasing Subsequence (easy version)
greedy
1300
x12515
1157B
Long Number
greedy
1300
x14584
1156B
Ugly Pairs
dfs and similar
,
greedy
,
implementation
,
sortings
,
strings
1800
x6174
1156A
Inscribed Figures
geometry
1400
x8163
1155D
Beautiful Array
brute force
,
data structures
,
divide and conquer
,
dp
,
greedy
1900
x6816
1155C
Alarm Clocks Everywhere
math
,
number theory
1300
x9196
1154E
Two Teams
data structures
,
implementation
,
sortings
1800
x6176
1154D
Walking Robot
greedy
1500
x9853
1154C
Gourmet Cat
implementation
,
math
1400
x10313
1153D
Serval and Rooted Tree
binary search
,
dfs and similar
,
dp
,
greedy
,
trees
1900
x4886
1153C
Serval and Parenthesis Sequence
greedy
,
strings
1700
x7352
1152C
Neko does Maths
brute force
,
math
,
number theory
1800
x6575
1152B
Neko Performs Cat Furrier Transform
bitmasks
,
constructive algorithms
,
dfs and similar
,
math
1300
x8866
1151D
Stas and the Queue at the Buffet
greedy
,
math
,
sortings
1600
x8332
1151C
Problem for Nazar
constructive algorithms
,
math
1800
x5301
1151B
Dima and a Bad XOR
bitmasks
,
brute force
,
constructive algorithms
,
dp
1600
x10950
1148D
Dirty Deeds Done Dirt Cheap
greedy
,
sortings
1800
x4936
1148C
Crazy Diamond
constructive algorithms
,
sortings
1700
x5254
1148B
Born This Way
binary search
,
brute force
,
two pointers
1600
x7327
1147B
Chladni Figure
brute force
,
strings
1900
x2831
1147A
Hide and Seek
graphs
1500
x5181
1146C
Tree Diameter
bitmasks
,
graphs
,
interactive
1700
x3644
1144F
Graph Without Long Directed Paths
dfs and similar
,
graphs
1700
x11302
1144E
Median String
bitmasks
,
math
,
number theory
,
strings
1900
x4104
1144D
Equalize Them All
constructive algorithms
,
greedy
1400
x10158
1143C
Queen
dfs and similar
,
trees
1400
x11916
1142A
The Beatles
brute force
,
math
1700
x3403
1141G
Privatization of Roads in Treeland
binary search
,
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
trees
1900
x2225
1141F2
Same Sum Blocks (Hard)
data structures
,
greedy
1900
x4131
1141F1
Same Sum Blocks (Easy)
greedy
1900
x3805
1141E
Superhero Battle
math
1700
x6677
1141D
Colored Boots
greedy
,
implementation
1500
x8458
1141C
Polycarp Restores Permutation
math
1500
x11358
1140C
Playlist
brute force
,
data structures
,
sortings
1600
x9436
1139C
Edgy Trees
dfs and similar
,
dsu
,
graphs
,
math
,
trees
1500
x12329
1138B
Circus
brute force
,
greedy
,
math
,
strings
1800
x4003
1137B
Camp Schedule
greedy
,
hashing
,
strings
1600
x6015
1137A
Skyscrapers
implementation
,
sortings
1600
x4450
1136D
Nastya Is Buying Lunch
greedy
1800
x3766
1136C
Nastya Is Transposing Matrices
constructive algorithms
,
sortings
1500
x7670
1133F2
Spanning Tree with One Fixed Degree
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
greedy
1900
x3294
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