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Kotlin Heroes: Episode 11
15:06:47
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combine-tags-by-or
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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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Problems
#
Name
1383F
Special Edges
flows
,
graphs
3200
x359
1383E
Strange Operation
combinatorics
,
data structures
,
dp
2800
x785
1383D
Rearrange
brute force
,
constructive algorithms
,
graphs
,
greedy
,
sortings
2800
x684
1383C
String Transformation 2
bitmasks
,
dp
,
graphs
,
trees
3100
x575
1383B
GameGame
bitmasks
,
constructive algorithms
,
dp
,
games
,
greedy
,
math
1900
x5048
1383A
String Transformation 1
dsu
,
graphs
,
greedy
,
sortings
,
strings
,
trees
,
two pointers
1700
x10642
1381E
Origami
geometry
,
math
,
sortings
3300
x267
1381D
The Majestic Brown Tree Snake
dfs and similar
,
dp
,
greedy
,
trees
,
two pointers
3000
x675
1381C
Mastermind
constructive algorithms
,
graph matchings
,
greedy
,
implementation
,
sortings
,
two pointers
2500
x1629
1381B
Unmerge
dp
1800
x8898
1381A2
Prefix Flip (Hard Version)
constructive algorithms
,
data structures
,
implementation
,
strings
,
two pointers
1700
x13282
1380G
Circular Dungeon
greedy
,
math
,
probabilities
2600
x796
1380F
Strange Addition
data structures
,
dp
,
matrices
2600
x784
1380E
Merging Towers
data structures
,
dsu
,
implementation
,
trees
2300
x2180
1380D
Berserk And Fireball
constructive algorithms
,
greedy
,
implementation
,
math
,
two pointers
2000
x4692
1380C
Create The Teams
brute force
,
dp
,
greedy
,
implementation
,
sortings
1400
x20701
1380B
Universal Solution
greedy
1400
x14596
1379F2
Chess Strikes Back (hard version)
data structures
,
divide and conquer
2800
x507
1379F1
Chess Strikes Back (easy version)
binary search
,
data structures
2700
x598
1379E
Inverse Genealogy
constructive algorithms
,
divide and conquer
,
dp
,
math
,
trees
2800
x430
1379D
New Passenger Trams
binary search
,
brute force
,
data structures
,
sortings
,
two pointers
2300
x1078
1379C
Choosing flowers
binary search
,
brute force
,
data structures
,
dfs and similar
,
dp
,
greedy
,
sortings
,
two pointers
2000
x5558
1379B
Dubious Cyrpto
binary search
,
brute force
,
math
,
number theory
1500
x12652
1379A
Acacius and String
brute force
,
implementation
,
strings
1500
x11915
1375I
Cubic Lattice
geometry
,
math
,
matrices
,
number theory
3500
x265
1375H
Set Merging
constructive algorithms
,
divide and conquer
3300
x417
1375G
Tree Modification
brute force
,
constructive algorithms
,
dfs and similar
,
graph matchings
,
graphs
,
trees
2800
x1912
1375F
Integer Game
constructive algorithms
,
games
,
interactive
,
math
2600
x2236
1375E
Inversion SwapSort
constructive algorithms
,
greedy
,
sortings
2500
x3058
1375D
Replace by MEX
brute force
,
constructive algorithms
,
sortings
1900
x9175
1375C
Element Extermination
constructive algorithms
,
data structures
,
greedy
1400
x21121
1374F
Cyclic Shifts Sorting
brute force
,
constructive algorithms
,
implementation
,
sortings
2400
x1295
1374E2
Reading Books (hard version)
data structures
,
greedy
,
implementation
,
sortings
,
ternary search
,
two pointers
2500
x927
1374E1
Reading Books (easy version)
data structures
,
greedy
,
sortings
1600
x14024
1374D
Zero Remainder Array
math
,
sortings
,
two pointers
1400
x23731
1373G
Pawns
data structures
,
divide and conquer
,
greedy
2600
x792
1373F
Network Coverage
binary search
,
constructive algorithms
,
data structures
,
greedy
2400
x1662
1373E
Sum of Digits
brute force
,
constructive algorithms
,
dp
,
greedy
2200
x2741
1373D
Maximum Sum on Even Positions
divide and conquer
,
dp
,
greedy
,
implementation
1600
x15594
1372F
Omkar and Modes
binary search
,
divide and conquer
,
interactive
2700
x446
1372E
Omkar and Last Floor
dp
,
greedy
,
two pointers
2900
x1184
1372D
Omkar and Circle
brute force
,
dp
,
games
,
greedy
2100
x5384
1372C
Omkar and Baseball
constructive algorithms
,
math
1500
x17821
1371F
Raging Thunder
data structures
,
divide and conquer
,
implementation
2800
x615
1371E2
Asterism (Hard Version)
binary search
,
combinatorics
,
dp
,
math
,
number theory
,
sortings
2300
x2344
1371E1
Asterism (Easy Version)
binary search
,
brute force
,
combinatorics
,
math
,
number theory
,
sortings
1900
x5231
1371D
Grid-00100
constructive algorithms
,
greedy
,
implementation
1600
x12984
1370F2
The Hidden Pair (Hard Version)
binary search
,
dfs and similar
,
graphs
,
interactive
,
shortest paths
,
trees
2700
x1481
1370F1
The Hidden Pair (Easy Version)
binary search
,
dfs and similar
,
graphs
,
interactive
,
shortest paths
,
trees
2400
x1600
1370E
Binary Subsequence Rotation
binary search
,
constructive algorithms
,
data structures
,
greedy
2100
x4878
1370D
Odd-Even Subsequence
binary search
,
dp
,
dsu
,
greedy
,
implementation
2000
x9631
1370C
Number Game
games
,
math
,
number theory
1400
x24547
1369F
BareLee
dfs and similar
,
dp
,
games
2700
x648
1369E
DeadLee
data structures
,
dfs and similar
,
greedy
,
implementation
,
sortings
2400
x2244
1369D
TediousLee
dp
,
graphs
,
greedy
,
math
,
trees
1900
x8611
1369C
RationalLee
greedy
,
math
,
sortings
,
two pointers
1400
x19569
1368H2
Breadboard Capacity (hard version)
3500
x226
1368H1
Breadboard Capacity (easy version)
dp
,
flows
,
greedy
3300
x349
1368G
Shifting Dominoes
data structures
,
geometry
,
graphs
,
trees
3200
x592
1368F
Lamps on a Circle
games
,
implementation
,
interactive
,
math
2600
x1043
1368E
Ski Accidents
constructive algorithms
,
graphs
,
greedy
2500
x2214
1368D
AND, OR and square sum
bitmasks
,
greedy
,
math
1700
x11794
1368C
Even Picture
constructive algorithms
1500
x13327
1368B
Codeforces Subsequences
brute force
,
constructive algorithms
,
greedy
,
math
,
strings
1500
x19708
1367F2
Flying Sort (Hard Version)
binary search
,
data structures
,
dp
,
greedy
,
sortings
,
two pointers
2400
x1664
1367F1
Flying Sort (Easy Version)
dp
,
greedy
,
two pointers
2100
x3262
1367E
Necklace Assembly
brute force
,
dfs and similar
,
dp
,
graphs
,
greedy
,
number theory
1900
x5448
1367D
Task On The Board
constructive algorithms
,
greedy
,
implementation
,
sortings
1800
x8337
1366G
Construct the String
data structures
,
dp
,
strings
2700
x546
1366F
Jog Around The Graph
binary search
,
dp
,
geometry
,
graphs
2700
x803
1366E
Two Arrays
binary search
,
brute force
,
combinatorics
,
constructive algorithms
,
dp
,
two pointers
2100
x4272
1366D
Two Divisors
constructive algorithms
,
math
,
number theory
2000
x10490
1366C
Palindromic Paths
greedy
,
math
1500
x13571
1365G
Secure Password
bitmasks
,
combinatorics
,
constructive algorithms
,
interactive
,
math
2800
x1164
1365F
Swaps Again
constructive algorithms
,
implementation
,
sortings
2100
x4442
1365E
Maximum Subsequence Value
brute force
,
constructive algorithms
1900
x7831
1365D
Solve The Maze
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
implementation
,
shortest paths
1700
x17271
1365C
Rotation Matching
constructive algorithms
,
data structures
,
greedy
,
implementation
1400
x23082
1364E
X-OR
bitmasks
,
constructive algorithms
,
divide and conquer
,
interactive
,
probabilities
2700
x1423
1364D
Ehab's Last Corollary
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
implementation
,
trees
2100
x4374
1364C
Ehab and Prefix MEXs
brute force
,
constructive algorithms
,
greedy
1600
x13154
1363F
Rotating Substrings
dp
,
strings
2600
x1495
1363E
Tree Shuffling
dfs and similar
,
dp
,
greedy
,
trees
2000
x6813
1363D
Guess The Maximums
binary search
,
implementation
,
interactive
,
math
2100
x4079
1363C
Game On Leaves
games
,
trees
1600
x18675
1363B
Subsequence Hate
implementation
,
strings
1400
x23602
1362C
Johnny and Another Rating Drop
bitmasks
,
greedy
,
math
1400
x18296
1361F
Johnny and New Toy
data structures
,
implementation
,
math
3300
x154
1361E
James and the Chase
dfs and similar
,
graphs
,
probabilities
,
trees
3000
x689
1361D
Johnny and James
greedy
,
implementation
,
math
,
trees
2900
x317
1361C
Johnny and Megan's Necklace
binary search
,
bitmasks
,
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
2500
x1630
1361B
Johnny and Grandmaster
greedy
,
implementation
,
math
,
sortings
1900
x3623
1361A
Johnny and Contribution
constructive algorithms
,
graphs
,
greedy
,
sortings
1700
x8425
1360H
Binary Median
binary search
,
bitmasks
,
brute force
,
constructive algorithms
2100
x4573
1360G
A/B Matrix
constructive algorithms
,
greedy
,
math
1900
x7748
1360F
Spy-string
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
hashing
,
strings
1700
x12397
1359F
RC Kaboom Show
binary search
,
brute force
,
data structures
,
geometry
,
math
2900
x541
1359E
Modular Stability
combinatorics
,
math
,
number theory
2000
x6109
1359D
Yet Another Yet Another Task
data structures
,
dp
,
implementation
,
two pointers
2000
x9444
1359C
Mixing Water
binary search
,
math
1700
x13821
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