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Kotlin Heroes: Episode 11
11:02:37
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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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Custom test
Problems
#
Name
1740E
Hanging Hearts
constructive algorithms
,
data structures
,
dfs and similar
,
dp
,
greedy
,
trees
1800
x4327
1740D
Knowledge Cards
constructive algorithms
,
data structures
1500
x8056
1740C
Bricks and Bags
constructive algorithms
,
games
,
greedy
,
sortings
1400
x11007
1739C
Card Game
combinatorics
,
constructive algorithms
,
dp
,
games
1500
x9073
1738C
Even Number Addicts
dp
,
games
,
greedy
,
math
1500
x11148
1737C
Ela and Crickets
constructive algorithms
,
games
,
implementation
,
math
1500
x5742
1735D
Meta-set
brute force
,
combinatorics
,
data structures
,
hashing
,
math
1700
x5494
1735C
Phase Shift
dfs and similar
,
dsu
,
graphs
,
greedy
,
implementation
,
strings
1400
x9900
1734D
Slime Escape
data structures
,
dp
,
greedy
,
two pointers
1800
x6286
1733D1
Zero-One (Easy Version)
constructive algorithms
,
greedy
,
math
1400
x13441
1732D1
Balance (Easy version)
brute force
,
data structures
,
implementation
,
number theory
1500
x8649
1732C1
Sheikh (Easy version)
binary search
,
bitmasks
,
greedy
,
two pointers
1800
x5889
1731D
Valiant's New Map
binary search
,
brute force
,
data structures
,
dp
,
two pointers
1700
x7142
1731C
Even Subarrays
bitmasks
,
brute force
,
hashing
,
math
,
number theory
1700
x9512
1730B
Meeting on the Line
binary search
,
geometry
,
greedy
,
implementation
,
math
,
ternary search
1600
x12632
1729E
Guess the Cycle Size
interactive
,
probabilities
1800
x6998
1728D
Letter Picking
constructive algorithms
,
dp
,
games
,
two pointers
1800
x7224
1728C
Digital Logarithm
data structures
,
greedy
,
sortings
1400
x15875
1725M
Moving Both Hands
dp
,
graphs
,
shortest paths
1800
x3117
1725H
Hot Black Hot White
constructive algorithms
,
math
1800
x2607
1725G
Garage
binary search
,
geometry
,
math
1500
x5867
1722G
Even-Odd XOR
bitmasks
,
constructive algorithms
,
greedy
1500
x11274
1722F
L-shapes
dfs and similar
,
implementation
1700
x6925
1722E
Counting Rectangles
brute force
,
data structures
,
dp
,
implementation
1600
x10795
1721D
Maximum AND
bitmasks
,
dfs and similar
,
divide and conquer
,
greedy
,
sortings
1800
x6617
1721C
Min-Max Array Transformation
binary search
,
greedy
,
two pointers
1400
x13355
1720D1
Xor-Subsequence (easy version)
bitmasks
,
brute force
,
dp
,
strings
,
trees
,
two pointers
1800
x5974
1719C
Fighting Tournament
binary search
,
data structures
,
implementation
,
two pointers
1400
x13215
1718A1
Burenka and Traditions (easy version)
dp
,
greedy
1800
x5754
1715C
Monoblock
combinatorics
,
data structures
,
implementation
,
math
1700
x8618
1714G
Path Prefixes
binary search
,
data structures
,
dfs and similar
,
trees
1700
x7564
1714E
Add Modulo 10
brute force
,
math
,
number theory
1400
x16531
1714D
Color with Occurrences
brute force
,
data structures
,
dp
,
greedy
,
strings
1600
x9067
1713D
Tournament Countdown
constructive algorithms
,
greedy
,
interactive
,
number theory
,
probabilities
1800
x5675
1710A
Color the Picture
constructive algorithms
,
greedy
,
math
1500
x10892
1709D
Rorororobot
binary search
,
data structures
,
greedy
,
math
1700
x8393
1709C
Recover an RBS
constructive algorithms
,
greedy
,
implementation
,
strings
1800
x8852
1707A
Doremy's IQ
binary search
,
constructive algorithms
,
greedy
,
implementation
1600
x13550
1706D1
Chopping Carrots (Easy Version)
binary search
,
brute force
,
constructive algorithms
,
greedy
,
number theory
1700
x6933
1706C
Qpwoeirut And The City
dp
,
flows
,
greedy
,
implementation
1400
x14873
1705D
Mark and Lightbulbs
combinatorics
,
constructive algorithms
,
greedy
,
math
,
sortings
1800
x6335
1705C
Mark and His Unfinished Essay
brute force
,
implementation
1400
x13333
1703G
Good Key, Bad Key
bitmasks
,
brute force
,
dp
,
greedy
,
math
1600
x10630
1702F
Equate Multisets
constructive algorithms
,
data structures
,
greedy
,
math
,
number theory
1700
x8366
1702E
Split Into Two Sets
dfs and similar
,
dsu
,
graphs
1600
x13269
1701C
Schedule Management
binary search
,
greedy
,
implementation
,
two pointers
1400
x16969
1700C
Helping the Nature
constructive algorithms
,
data structures
,
greedy
1700
x10898
1699C
The Third Problem
combinatorics
,
constructive algorithms
,
math
1700
x9751
1698D
Fixed Point Guessing
binary search
,
constructive algorithms
,
interactive
1600
x9279
1697C
awoo's Favorite Problem
binary search
,
constructive algorithms
,
data structures
,
greedy
,
implementation
,
strings
,
two pointers
1400
x14345
1696C
Fishingprince Plays With Array
constructive algorithms
,
greedy
,
implementation
,
math
1400
x11614
1695C
Zero Path
brute force
,
data structures
,
dp
,
graphs
,
greedy
,
shortest paths
1700
x10912
1693B
Fake Plastic Trees
dfs and similar
,
dp
,
greedy
,
trees
1700
x8446
1692H
Gambling
data structures
,
dp
,
greedy
,
math
1700
x7450
1692G
2^Sort
data structures
,
dp
,
sortings
,
two pointers
1400
x17659
1691D
Max GEQ Sum
binary search
,
constructive algorithms
,
data structures
,
divide and conquer
,
implementation
,
two pointers
1800
x5787
1691C
Sum of Substrings
brute force
,
constructive algorithms
,
greedy
,
math
,
strings
1400
x15632
1690F
Shifting String
graphs
,
math
,
number theory
,
strings
1700
x7154
1690E
Price Maximization
binary search
,
greedy
,
math
,
two pointers
1500
x15165
1689C
Infected Tree
dfs and similar
,
dp
,
trees
1600
x11204
1688C
Manipulating History
constructive algorithms
,
greedy
,
strings
1700
x8140
1687B
Railway System
constructive algorithms
,
graphs
,
greedy
,
interactive
,
sortings
1700
x3637
1687A
The Enchanted Forest
brute force
,
greedy
1600
x10362
1684D
Traps
constructive algorithms
,
greedy
,
sortings
1700
x9651
1684C
Column Swapping
brute force
,
constructive algorithms
,
greedy
,
implementation
,
sortings
1400
x12309
1682C
LIS or Reverse LIS?
constructive algorithms
,
greedy
,
implementation
,
math
1400
x14718
1681D
Required Length
brute force
,
dfs and similar
,
dp
,
hashing
,
shortest paths
1700
x9612
1680C
Binary String
binary search
,
greedy
,
strings
,
two pointers
1600
x9911
1679C
Rooks Defenders
data structures
,
implementation
1400
x10287
1678B2
Tokitsukaze and Good 01-String (hard version)
dp
,
greedy
,
implementation
1800
x6605
1677B
Tokitsukaze and Meeting
data structures
,
implementation
,
math
1700
x4172
1677A
Tokitsukaze and Strange Inequality
brute force
,
data structures
,
dp
1600
x8421
1676H2
Maximum Crossings (Hard Version)
data structures
,
divide and conquer
,
sortings
1500
x10722
1676H1
Maximum Crossings (Easy Version)
brute force
1400
x14003
1675F
Vlad and Unfinished Business
dfs and similar
,
dp
,
greedy
,
trees
1800
x5311
1675E
Replace With the Previous, Minimize
dsu
,
greedy
,
strings
1500
x10607
1674F
Desktop Rearrangement
data structures
,
greedy
,
implementation
1800
x5040
1673C
Palindrome Basis
brute force
,
dp
,
math
,
number theory
1500
x12714
1672D
Cyclic Rotation
constructive algorithms
,
greedy
,
implementation
,
two pointers
1700
x6223
1671D
Insert a Progression
brute force
,
constructive algorithms
,
greedy
1600
x7642
1670D
Very Suspicious
binary search
,
brute force
,
geometry
,
greedy
,
implementation
,
math
1700
x5110
1670C
Where is the Pizza?
data structures
,
dfs and similar
,
dsu
,
graphs
,
implementation
,
math
1400
x9936
1666L
Labyrinth
dfs and similar
,
graphs
1800
x3107
1666C
Connect the Points
brute force
,
constructive algorithms
,
geometry
1800
x3174
1665C
Tree Infection
binary search
,
greedy
,
sortings
,
trees
1600
x8359
1661C
Water the Trees
binary search
,
greedy
,
math
1700
x9317
1660F1
Promising String (easy version)
brute force
,
implementation
,
math
,
strings
1700
x7240
1660E
Matrix and Shifts
brute force
,
constructive algorithms
,
greedy
,
implementation
1600
x7298
1660D
Maximum Product Strikes Back
brute force
,
implementation
,
math
,
two pointers
1600
x8648
1659C
Line Empire
binary search
,
brute force
,
dp
,
greedy
,
implementation
,
math
1500
x10466
1658D1
388535 (Easy Version)
bitmasks
,
math
1600
x9053
1658C
Shinju and the Lost Permutation
constructive algorithms
,
math
1700
x9315
1654C
Alice and the Cake
data structures
,
greedy
,
implementation
,
sortings
1400
x13473
1651C
Fault-tolerant Network
brute force
,
data structures
,
implementation
1500
x10699
1648B
Integral Array
brute force
,
constructive algorithms
,
data structures
,
math
1800
x6428
1648A
Weird Sum
combinatorics
,
data structures
,
geometry
,
math
,
matrices
,
sortings
1400
x12769
1646C
Factorials and Powers of Two
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
math
1500
x14084
1644D
Cross Coloring
data structures
,
implementation
,
math
1700
x7227
1644C
Increase Subarray Sums
brute force
,
dp
,
greedy
,
implementation
1400
x13745
1637D
Yet Another Minimization Problem
dp
,
greedy
,
math
1800
x7703
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