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Name
1114F
Please, another Queries on Array?
bitmasks
,
data structures
,
divide and conquer
,
math
,
number theory
2400
x1814
990G
GCD Counting
divide and conquer
,
dp
,
dsu
,
number theory
,
trees
2400
x1735
1715E
Long Way Home
data structures
,
divide and conquer
,
dp
,
geometry
,
graphs
,
greedy
,
shortest paths
2400
x1614
1848F
Vika and Wiki
binary search
,
bitmasks
,
combinatorics
,
divide and conquer
,
dp
,
math
2400
x1452
1174F
Ehab and the Big Finale
constructive algorithms
,
divide and conquer
,
graphs
,
implementation
,
interactive
,
trees
2400
x1452
914E
Palindromes in a Tree
bitmasks
,
data structures
,
divide and conquer
,
trees
2400
x1394
1096G
Lucky Tickets
divide and conquer
,
dp
,
fft
2400
x1383
1750E
Bracket Cost
binary search
,
data structures
,
divide and conquer
,
dp
,
greedy
,
strings
2400
x1364
1619H
Permutation and Queries
brute force
,
data structures
,
divide and conquer
,
two pointers
2400
x1075
632F
Magic Matrix
brute force
,
divide and conquer
,
graphs
,
matrices
,
trees
2400
x1027
1969E
Unique Array
binary search
,
data structures
,
divide and conquer
,
dp
,
greedy
2400
x944
1902F
Trees and XOR Queries Again
data structures
,
dfs and similar
,
divide and conquer
,
graphs
,
implementation
,
math
,
trees
2400
x897
1146E
Hot is Cold
bitmasks
,
data structures
,
divide and conquer
,
implementation
2400
x827
1777F
Comfortably Numb
bitmasks
,
data structures
,
divide and conquer
,
strings
,
trees
2400
x823
1673F
Anti-Theft Road Planning
bitmasks
,
constructive algorithms
,
divide and conquer
,
greedy
,
interactive
,
math
2400
x770
161C
Abracadabra
divide and conquer
2400
x638
1218D
Xor Spanning Tree
divide and conquer
,
fft
,
graphs
2400
x313
868F
Yet Another Minimization Problem
divide and conquer
,
dp
2500
x3429
1100F
Ivan and Burgers
data structures
,
divide and conquer
,
greedy
,
math
2500
x2125
1527E
Partition Game
binary search
,
data structures
,
divide and conquer
,
dp
2500
x2094
1175F
The Number of Subpermutations
brute force
,
data structures
,
divide and conquer
,
hashing
,
math
2500
x1567
660F
Bear and Bowling 4
binary search
,
data structures
,
divide and conquer
,
geometry
,
ternary search
2500
x1522
1418G
Three Occurrences
data structures
,
divide and conquer
,
hashing
,
two pointers
2500
x1465
1041F
Ray in the tube
data structures
,
divide and conquer
,
dp
,
math
2500
x1456
1665E
MinimizOR
bitmasks
,
brute force
,
data structures
,
divide and conquer
,
greedy
,
implementation
,
two pointers
2500
x1428
1438E
Yurii Can Do Everything
binary search
,
bitmasks
,
brute force
,
constructive algorithms
,
divide and conquer
,
two pointers
2500
x1292
1583F
Defender of Childhood Dreams
bitmasks
,
constructive algorithms
,
divide and conquer
2500
x1223
1716E
Swap and Maximum Block
bitmasks
,
data structures
,
dfs and similar
,
divide and conquer
,
dp
2500
x1022
1625E1
Cats on the Upgrade (easy version)
brute force
,
data structures
,
dfs and similar
,
divide and conquer
,
dp
,
graphs
,
trees
2500
x977
678F
Lena and Queries
data structures
,
divide and conquer
,
geometry
2500
x825
1734F
Zeros and Ones
bitmasks
,
divide and conquer
,
dp
,
math
2500
x770
1903D2
Maximum And Queries (hard version)
bitmasks
,
divide and conquer
,
dp
,
greedy
2500
x712
1808E2
Minibuses on Venus (medium version)
combinatorics
,
divide and conquer
,
dp
,
matrices
2500
x650
1186E
Vus the Cossack and a Field
divide and conquer
,
implementation
,
math
2500
x555
1423H
Virus
data structures
,
divide and conquer
,
dsu
,
graphs
2500
x509
101E
Candies and Stones
divide and conquer
,
dp
2500
x477
1181E1
A Story of One Country (Easy)
brute force
,
divide and conquer
,
sortings
2500
x453
68D
Half-decay tree
data structures
,
divide and conquer
,
dp
,
math
,
probabilities
2500
x448
1139F
Dish Shopping
data structures
,
divide and conquer
2500
x368
1218E
Product Tuples
divide and conquer
,
fft
2500
x359
1250M
SmartGarden
constructive algorithms
,
divide and conquer
2500
x352
117D
Not Quick Transformation
divide and conquer
,
math
2500
x330
1906K
Deck-Building Game
divide and conquer
,
math
2500
x264
321E
Ciel and Gondolas
data structures
,
divide and conquer
,
dp
2600
x4543
662C
Binary Table
bitmasks
,
brute force
,
divide and conquer
,
dp
,
fft
,
math
2600
x1959
1223F
Stack Exterminable Arrays
data structures
,
divide and conquer
,
dp
,
hashing
2600
x1950
1439C
Greedy Shopping
binary search
,
data structures
,
divide and conquer
,
greedy
,
implementation
2600
x1678
750E
New Year and Old Subsequence
data structures
,
divide and conquer
,
dp
,
matrices
2600
x1467
1793F
Rebrending
brute force
,
data structures
,
divide and conquer
,
implementation
2600
x1292
848C
Goodbye Souvenir
data structures
,
divide and conquer
2600
x1256
1140F
Extending Set of Points
data structures
,
divide and conquer
,
dsu
2600
x1122
914G
Sum the Fibonacci
bitmasks
,
divide and conquer
,
dp
,
fft
,
math
2600
x897
1466G
Song of the Sirens
combinatorics
,
divide and conquer
,
hashing
,
math
,
string suffix structures
,
strings
2600
x850
1373G
Pawns
data structures
,
divide and conquer
,
greedy
2600
x771
1898F
Vova Escapes the Matrix
brute force
,
dfs and similar
,
divide and conquer
,
shortest paths
2600
x739
809C
Find a car
combinatorics
,
divide and conquer
,
dp
2600
x730
1004F
Sonya and Bitwise OR
bitmasks
,
data structures
,
divide and conquer
2600
x704
1613F
Tree Coloring
combinatorics
,
divide and conquer
,
fft
2600
x667
1680F
Lenient Vertex Cover
dfs and similar
,
divide and conquer
,
dsu
,
graphs
,
trees
2600
x630
1257G
Divisor Set
divide and conquer
,
fft
,
greedy
,
math
,
number theory
2600
x579
1217F
Forced Online Queries Problem
data structures
,
divide and conquer
,
dsu
,
graphs
,
trees
2600
x541
1905F
Field Should Not Be Empty
brute force
,
data structures
,
divide and conquer
2600
x458
1957F1
Frequency Mismatch (Easy Version)
binary search
,
data structures
,
divide and conquer
,
hashing
,
probabilities
,
trees
2600
x347
217C
Formurosa
divide and conquer
,
dp
,
expression parsing
2600
x312
232C
Doe Graphs
constructive algorithms
,
divide and conquer
,
dp
,
graphs
,
shortest paths
2600
x281
1425B
Blue and Red of Our Faculty!
divide and conquer
,
dp
2600
x273
383E
Vowels
combinatorics
,
divide and conquer
,
dp
2700
x2746
715C
Digit Tree
dfs and similar
,
divide and conquer
,
dsu
,
trees
2700
x1937
452F
Permutation
data structures
,
divide and conquer
,
hashing
2700
x1366
293E
Close Vertices
data structures
,
divide and conquer
,
trees
2700
x1270
1364E
X-OR
bitmasks
,
constructive algorithms
,
divide and conquer
,
interactive
,
probabilities
2700
x1114
1804F
Approximate Diameter
binary search
,
divide and conquer
,
graphs
,
shortest paths
2700
x854
1887D
Split
binary search
,
data structures
,
divide and conquer
,
dsu
,
math
,
trees
,
two pointers
2700
x820
1303G
Sum of Prefix Sums
data structures
,
divide and conquer
,
geometry
,
trees
2700
x727
500F
New Year Shopping
divide and conquer
,
dp
2700
x698
1849F
XOR Partition
binary search
,
bitmasks
,
data structures
,
divide and conquer
,
greedy
,
trees
2700
x657
1550F
Jumping Around
binary search
,
data structures
,
divide and conquer
,
dp
,
dsu
,
graphs
,
shortest paths
2700
x630
995E
Number Clicker
divide and conquer
,
graphs
,
meet-in-the-middle
,
number theory
2700
x616
1730E
Maximums and Minimums
combinatorics
,
data structures
,
divide and conquer
,
number theory
2700
x615
1814F
Communication Towers
brute force
,
divide and conquer
,
dsu
2700
x467
1140G
Double Tree
data structures
,
divide and conquer
,
shortest paths
,
trees
2700
x462
1372F
Omkar and Modes
binary search
,
divide and conquer
,
interactive
2700
x424
1543E
The Final Pursuit
bitmasks
,
constructive algorithms
,
divide and conquer
,
graphs
,
greedy
,
math
2700
x394
613D
Kingdom and its Cities
dfs and similar
,
divide and conquer
,
dp
,
graphs
,
sortings
,
trees
2800
x2694
1442D
Sum
data structures
,
divide and conquer
,
dp
,
greedy
2800
x1931
1654F
Minimal String Xoration
bitmasks
,
data structures
,
divide and conquer
,
greedy
,
hashing
,
sortings
,
strings
2800
x1054
549F
Yura and Developers
data structures
,
divide and conquer
2800
x850
1648D
Serious Business
data structures
,
divide and conquer
,
dp
,
implementation
,
shortest paths
2800
x793
1693D
Decinc Dividing
brute force
,
data structures
,
divide and conquer
,
dp
,
greedy
2800
x773
1609F
Interesting Sections
data structures
,
divide and conquer
,
meet-in-the-middle
,
two pointers
2800
x732
1874D
Jellyfish and Miku
divide and conquer
,
dp
,
math
,
probabilities
2800
x653
1316F
Battalion Strength
data structures
,
divide and conquer
,
probabilities
2800
x580
480E
Parking Lot
data structures
,
divide and conquer
2800
x512
1371F
Raging Thunder
data structures
,
divide and conquer
,
implementation
2800
x505
685E
Travelling Through the Snow Queen's Kingdom
bitmasks
,
brute force
,
divide and conquer
,
graphs
2800
x503
1379F2
Chess Strikes Back (hard version)
data structures
,
divide and conquer
2800
x467
1386C
Joker
*special problem
,
bitmasks
,
data structures
,
divide and conquer
,
dsu
2800
x430
776F
Sherlock's bet to Moriarty
constructive algorithms
,
data structures
,
divide and conquer
,
geometry
,
graphs
,
implementation
,
trees
2800
x415
1783G
Weighed Tree Radius
data structures
,
divide and conquer
,
implementation
,
trees
2800
x411
842E
Nikita and game
binary search
,
dfs and similar
,
divide and conquer
,
graphs
,
trees
2800
x397
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Codeforces Round 946 (Div. 3)
28:06:04
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combine-tags-by-or
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2-sat
binary search
bitmasks
brute force
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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
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