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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
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Problems
#
Name
1133F1
Spanning Tree with Maximum Degree
graphs
1600
x7899
1133E
K Balanced Teams
dp
,
sortings
,
two pointers
1800
x5575
1132G
Greedy Subsequences
data structures
,
dp
,
trees
2400
x1041
1132F
Clear the String
dp
2000
x8389
1132E
Knapsack
dfs and similar
,
dp
,
greedy
2300
x1509
1132D
Stressful Training
binary search
,
greedy
2300
x1941
1132C
Painting the Fence
brute force
1700
x5449
1131G
Most Dangerous Shark
data structures
,
dp
,
two pointers
2700
x444
1131F
Asya And Kittens
constructive algorithms
,
dsu
1700
x6711
1131E
String Multiplication
dp
,
greedy
,
strings
2300
x1154
1131D
Gourmet choice
dfs and similar
,
dp
,
dsu
,
graphs
,
greedy
2000
x3320
1129E
Legendary Tree
binary search
,
interactive
,
trees
3100
x440
1129D
Isolation
data structures
,
dp
2900
x1100
1129C
Morse Code
binary search
,
data structures
,
dp
,
hashing
,
sortings
,
string suffix structures
,
strings
2400
x930
1129B
Wrong Answer
constructive algorithms
2000
x2217
1129A2
Toy Train
brute force
,
greedy
1800
x4112
1129A1
Toy Train (Simplified)
brute force
,
greedy
1700
x3833
1121C
System Testing
implementation
1600
x2001
1120F
Secret Letters
data structures
,
dp
,
greedy
3100
x261
1120E
The very same Munchhausen
brute force
2600
x129
1120D
Power Tree
dfs and similar
,
dp
,
dsu
,
graphs
,
greedy
,
trees
2500
x1423
1120C
Compress String
dp
,
strings
2100
x2117
1120B
Once in a casino
constructive algorithms
,
greedy
,
implementation
,
math
2700
x433
1120A
Diana and Liana
greedy
,
implementation
,
two pointers
1900
x1645
1119H
Triple
fft
,
math
3200
x575
1119G
Get Ready for the Battle
constructive algorithms
,
implementation
3100
x502
1119F
Niyaz and Small Degrees
data structures
,
dp
,
trees
3400
x734
1119E
Pavel and Triangles
brute force
,
dp
,
fft
,
greedy
,
ternary search
1900
x5056
1119D
Frets On Fire
binary search
,
sortings
1800
x4869
1118F2
Tree Cutting (Hard Version)
combinatorics
,
dfs and similar
,
dp
,
trees
2700
x544
1118F1
Tree Cutting (Easy Version)
dfs and similar
,
trees
1800
x6003
1118E
Yet Another Ball Problem
constructive algorithms
,
implementation
1700
x4221
1118D2
Coffee and Coursework (Hard Version)
binary search
,
greedy
1700
x6344
1118D1
Coffee and Coursework (Easy version)
brute force
,
greedy
1700
x5702
1118C
Palindromic Matrix
constructive algorithms
,
implementation
1700
x5796
1117G
Recursive Queries
data structures
2500
x706
1117F
Crisp String
bitmasks
,
dp
2500
x587
1117E
Decypher the String
bitmasks
,
chinese remainder theorem
,
constructive algorithms
,
interactive
,
math
2200
x1533
1117D
Magic Gems
dp
,
math
,
matrices
2100
x4360
1117C
Magic Ship
binary search
1900
x7171
1115U3
Block unitary
*special problem
1700
x197
1115U2
Chessboard unitary
*special problem
1600
x234
1115G3
Palindrome checker oracle
*special problem
1600
x231
1115G2
OR oracle
*special problem
1600
x312
1114F
Please, another Queries on Array?
bitmasks
,
data structures
,
divide and conquer
,
math
,
number theory
2400
x2006
1114E
Arithmetic Progression
binary search
,
interactive
,
number theory
,
probabilities
2200
x2885
1114D
Flood Fill
dp
1900
x6859
1114C
Trailing Loves (or L'oeufs?)
brute force
,
implementation
,
math
,
number theory
1700
x7433
1111E
Tree
data structures
,
dfs and similar
,
dp
,
graphs
,
trees
2500
x945
1111D
Destroy the Colony
combinatorics
,
dp
,
math
2600
x973
1111C
Creative Snap
binary search
,
brute force
,
divide and conquer
,
math
1700
x6292
1111B
Average Superhero Gang Power
brute force
,
implementation
,
math
1700
x6301
1110H
Modest Substrings
dp
,
strings
3500
x283
1110G
Tree-Tac-Toe
constructive algorithms
,
games
,
trees
3100
x627
1110F
Nearest Leaf
data structures
,
trees
2600
x1761
1110E
Magic Stones
constructive algorithms
,
math
,
sortings
2200
x4193
1110D
Jongmah
dp
2200
x3589
1109F
Sasha and Algorithm of Silence's Sounds
data structures
,
trees
3200
x293
1109E
Sasha and a Very Easy Test
data structures
,
number theory
2700
x552
1109D
Sasha and Interesting Fact from Graph Theory
brute force
,
combinatorics
,
dp
,
math
,
trees
2400
x1346
1109C
Sasha and a Patient Friend
binary search
,
data structures
,
implementation
2800
x256
1109B
Sasha and One More Name
constructive algorithms
,
hashing
,
strings
1800
x4366
1109A
Sasha and a Bit of Relax
dp
,
implementation
1600
x8530
1108F
MST Unification
binary search
,
dsu
,
graphs
,
greedy
2100
x2969
1108E2
Array and Segments (Hard version)
data structures
,
implementation
2100
x2216
1108E1
Array and Segments (Easy version)
brute force
,
greedy
,
implementation
1800
x4558
1107G
Vasya and Maximum Profit
binary search
,
constructive algorithms
,
data structures
,
dp
,
dsu
2400
x1072
1107F
Vasya and Endless Credits
dp
,
flows
,
graph matchings
,
graphs
,
sortings
2600
x807
1107E
Vasya and Binary String
dp
2400
x2335
1107D
Compression
dp
,
implementation
,
math
,
number theory
1800
x3738
1106F
Lunar New Year and a Recursive Sequence
math
,
matrices
,
number theory
2400
x990
1106E
Lunar New Year and Red Envelopes
data structures
,
dp
2100
x2586
1105E
Helping Hiasat
bitmasks
,
brute force
,
dp
,
meet-in-the-middle
2200
x1659
1105D
Kilani and the Game
dfs and similar
,
graphs
,
implementation
,
shortest paths
1900
x4152
1103E
Radix sum
fft
,
math
,
number theory
3400
x234
1103D
Professional layer
bitmasks
,
dp
3100
x414
1103C
Johnny Solving
constructive algorithms
,
dfs and similar
,
graphs
,
math
2700
x855
1103B
Game with modulo
binary search
,
constructive algorithms
,
interactive
2000
x3297
1102F
Elongated Matrix
binary search
,
bitmasks
,
brute force
,
dp
,
graphs
2000
x2031
1102E
Monotonic Renumeration
combinatorics
,
sortings
1700
x6060
1101G
(Zero XOR Subset)-less
math
,
matrices
2300
x1743
1101F
Trucks and Cities
binary search
,
dp
2400
x1370
1101D
GCD Counting
data structures
,
dfs and similar
,
dp
,
number theory
,
trees
2000
x4742
1100F
Ivan and Burgers
data structures
,
divide and conquer
,
greedy
,
math
2500
x2507
1100E
Andrew and Taxi
binary search
,
dfs and similar
,
graphs
2200
x2391
1100D
Dasha and Chess
constructive algorithms
,
games
,
interactive
2500
x859
1099F
Cookies
binary search
,
data structures
,
dfs and similar
,
dp
,
games
,
trees
2400
x961
1098F
Ж-function
string suffix structures
,
strings
3500
x229
1098E
Fedya the Potter
binary search
,
implementation
,
math
,
number theory
3400
x224
1098D
Eels
data structures
2800
x775
1098C
Construct a tree
binary search
,
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
trees
2400
x1088
1098B
Nice table
brute force
,
constructive algorithms
,
greedy
,
math
2100
x1696
1098A
Sum in the tree
constructive algorithms
,
dfs and similar
,
greedy
,
trees
1600
x8810
1097H
Mateusz and an Infinite Sequence
bitmasks
,
brute force
,
dp
,
strings
3400
x95
1097G
Vladislav and a Great Legend
combinatorics
,
dp
,
trees
3000
x769
1097F
Alex and a TV Show
bitmasks
,
combinatorics
,
number theory
2500
x1269
1097E
Egor and an RPG game
constructive algorithms
,
greedy
3400
x485
1097D
Makoto and a Blackboard
dp
,
math
,
number theory
,
probabilities
2200
x2874
1096G
Lucky Tickets
divide and conquer
,
dp
,
fft
2400
x1509
1096F
Inversion Expectation
dp
,
math
,
probabilities
2300
x1813
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