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Kotlin Heroes: Episode 11
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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
1635D
Infinite Set
bitmasks
,
dp
,
math
,
matrices
,
number theory
,
strings
1800
x6250
1634B
Fortune Telling
bitmasks
,
math
1400
x16571
1633D
Make Them Equal
dp
,
greedy
1600
x14022
1632C
Strange Test
binary search
,
bitmasks
,
brute force
,
dp
,
math
1600
x12714
1630B
Range and Partition
binary search
,
constructive algorithms
,
data structures
,
greedy
,
two pointers
1800
x5738
1630A
And Matching
bitmasks
,
constructive algorithms
1500
x14525
1628B
Peculiar Movie Preferences
greedy
,
strings
1700
x11588
1628A
Meximum Array
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
two pointers
1400
x15597
1627C
Not Assigning
constructive algorithms
,
dfs and similar
,
number theory
,
trees
1400
x14494
1626C
Monsters And Spells
binary search
,
data structures
,
dp
,
greedy
,
implementation
,
math
,
two pointers
1700
x10903
1625C
Road Optimization
dp
1700
x10621
1624D
Palindromes Coloring
binary search
,
greedy
,
sortings
,
strings
1400
x16971
1623C
Balanced Stone Heaps
binary search
,
greedy
1600
x12109
1622C
Set or Decrease
binary search
,
brute force
,
greedy
,
sortings
1600
x13058
1621C
Hidden Permutations
dfs and similar
,
interactive
,
math
1700
x6895
1621B
Integers Shop
data structures
,
greedy
,
implementation
1500
x13397
1620C
BA-String
brute force
,
dp
,
greedy
,
implementation
,
math
1800
x6564
1619E
MEX and Increments
constructive algorithms
,
data structures
,
dp
,
greedy
,
implementation
,
math
,
sortings
1700
x9155
1619D
New Year's Problem
binary search
,
greedy
,
sortings
1800
x7532
1618E
Singers' Tour
constructive algorithms
,
math
1700
x7166
1617D1
Too Many Impostors (easy version)
constructive algorithms
,
implementation
,
interactive
1800
x4675
1616C
Representative Edges
brute force
,
geometry
,
implementation
,
math
1500
x12219
1615C
Menorah
brute force
,
graphs
,
greedy
,
math
1600
x8368
1614C
Divan and bitwise operations
bitmasks
,
combinatorics
,
constructive algorithms
,
dp
,
math
1500
x10235
1612D
X-Magic Pair
math
,
number theory
1600
x9129
1611F
ATM and Students
binary search
,
data structures
,
two pointers
1800
x6443
1611E1
Escape The Maze (easy version)
dfs and similar
,
greedy
,
shortest paths
,
trees
,
two pointers
1700
x7264
1611D
Weights Assignment For Tree Edges
constructive algorithms
,
trees
1500
x9845
1610C
Keshi Is Throwing a Party
binary search
,
greedy
1600
x11535
1609D
Social Network
dsu
,
graphs
,
greedy
,
implementation
,
trees
1600
x7293
1609C
Complex Market Analysis
binary search
,
dp
,
implementation
,
number theory
,
schedules
,
two pointers
1400
x9725
1608C
Game Master
data structures
,
dfs and similar
,
dp
,
graphs
,
greedy
,
two pointers
1700
x6646
1607E
Robot on the Board 1
implementation
1600
x9310
1606C
Banknotes
greedy
,
number theory
1400
x14132
1605C
Dominant Character
brute force
,
greedy
,
implementation
,
strings
1400
x16936
1603B
Moderate Modular Mode
constructive algorithms
,
math
,
number theory
1600
x13531
1600J
Robot Factory
bitmasks
,
dfs and similar
1400
x3908
1598D
Training Session
combinatorics
,
data structures
,
geometry
,
implementation
,
math
1700
x8656
1594D
The Number of Imposters
constructive algorithms
,
dfs and similar
,
dp
,
dsu
,
graphs
1700
x7487
1593E
Gardener and Tree
brute force
,
data structures
,
dfs and similar
,
greedy
,
implementation
,
trees
1600
x12384
1592C
Bakry and Partitioning
bitmasks
,
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
trees
1700
x7974
1583D
Omkar and the Meaning of Life
constructive algorithms
,
greedy
,
interactive
1800
x5381
1583C
Omkar and Determination
data structures
,
dp
1700
x6934
1582F1
Korney Korneevich and XOR (easy version)
bitmasks
,
dp
,
greedy
1800
x5574
1582D
Vupsen, Pupsen and 0
constructive algorithms
,
math
1600
x10496
1580A
Portal
brute force
,
data structures
,
dp
,
greedy
,
implementation
1700
x3653
1579F
Array Stabilization (AND version)
brute force
,
graphs
,
math
,
number theory
,
shortest paths
1700
x4780
1579E2
Array Optimization by Deque
data structures
,
greedy
1700
x6646
1579D
Productive Meeting
constructive algorithms
,
graphs
,
greedy
1400
x16022
1579C
Ticks
greedy
,
implementation
1500
x10574
1578H
Higher Order Functions
implementation
,
strings
1700
x2025
1575J
Jeopardy of Dropped Balls
binary search
,
brute force
,
dsu
,
implementation
1500
x3798
1575D
Divisible by Twenty-Five
brute force
,
dfs and similar
,
dp
1800
x2525
1573B
Swaps
greedy
,
math
,
sortings
1400
x14539
1572A
Book
binary search
,
brute force
,
data structures
,
dp
,
graphs
,
implementation
,
sortings
1800
x8984
1571E
Fix the String
*special problem
,
bitmasks
,
dp
,
greedy
1700
x337
1571D
Sweepstake
*special problem
,
brute force
,
constructive algorithms
,
implementation
,
math
1800
x332
1571C
Rhyme
*special problem
,
implementation
1800
x376
1569C
Jury Meeting
combinatorics
,
math
1500
x12014
1567C
Carrying Conundrum
bitmasks
,
combinatorics
,
dp
,
math
1600
x12167
1566D2
Seating Arrangements (hard version)
data structures
,
greedy
,
implementation
,
sortings
,
two pointers
1600
x7848
1562D1
Two Hundred Twenty One (easy version)
data structures
,
dp
,
math
1700
x6337
1562C
Rings
constructive algorithms
,
math
1500
x13269
1561D1
Up the Strip (simplified version)
brute force
,
data structures
,
dp
,
math
,
number theory
1700
x5607
1560E
Polycarp and String Transformation
binary search
,
implementation
,
sortings
,
strings
1800
x7959
1559D1
Mocha and Diana (Easy Version)
brute force
,
constructive algorithms
,
dsu
,
graphs
,
greedy
,
trees
1400
x13782
1557C
Moamen and XOR
bitmasks
,
combinatorics
,
dp
,
math
,
matrices
1700
x8593
1556D
Take a Guess
bitmasks
,
constructive algorithms
,
interactive
,
math
1800
x6907
1556C
Compressed Bracket Sequence
brute force
,
implementation
1800
x5786
1555D
Say No to Palindromes
brute force
,
constructive algorithms
,
dp
,
strings
1600
x12362
1554D
Diane
constructive algorithms
,
greedy
,
strings
1800
x9443
1554C
Mikasa
binary search
,
bitmasks
,
greedy
,
implementation
1800
x8868
1554B
Cobb
bitmasks
,
brute force
,
greedy
,
math
1700
x12763
1553D
Backspace
dp
,
greedy
,
strings
,
two pointers
1500
x13718
1552D
Array Differentiation
bitmasks
,
brute force
,
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
math
1800
x7006
1552C
Maximize the Intersections
combinatorics
,
constructive algorithms
,
geometry
,
greedy
,
sortings
1800
x5908
1552B
Running for Gold
combinatorics
,
graphs
,
greedy
,
sortings
1500
x15405
1551D1
Domino (easy version)
constructive algorithms
,
math
1700
x7061
1551C
Interesting Story
greedy
,
sortings
,
strings
1500
x13290
1551B2
Wonderful Coloring - 2
binary search
,
constructive algorithms
,
data structures
,
greedy
1400
x15492
1550C
Manhattan Subarrays
brute force
,
geometry
,
greedy
,
implementation
1700
x10163
1548B
Integers Have Friends
binary search
,
data structures
,
divide and conquer
,
math
,
number theory
,
two pointers
1800
x9810
1548A
Web of Lies
brute force
,
graphs
,
greedy
1400
x16418
1547E
Air Conditioners
data structures
,
dp
,
implementation
,
shortest paths
,
sortings
,
two pointers
1500
x14425
1545A
AquaMoon and Strange Sort
sortings
1500
x13889
1543D1
RPD and Rap Sheet (Easy Version)
bitmasks
,
constructive algorithms
,
interactive
,
math
1700
x7596
1542C
Strange Function
math
,
number theory
1600
x14188
1542B
Plus and Multiply
constructive algorithms
,
math
,
number theory
1500
x23074
1540A
Great Graphs
constructive algorithms
,
graphs
,
greedy
,
shortest paths
,
sortings
1400
x13924
1539D
PriceFixed
binary search
,
greedy
,
implementation
,
sortings
,
two pointers
1600
x11629
1538F
Interesting Function
binary search
,
dp
,
math
,
number theory
1500
x19227
1538D
Another Problem About Dividing Numbers
constructive algorithms
,
math
,
number theory
1700
x13583
1537E1
Erase and Extend (Easy Version)
binary search
,
brute force
,
dp
,
greedy
,
hashing
,
implementation
,
string suffix structures
,
strings
,
two pointers
1600
x12919
1537D
Deleting Divisors
games
,
math
,
number theory
1700
x12372
1536C
Diluc and Kaeya
data structures
,
dp
,
hashing
,
number theory
1500
x14101
1535D
Playoff Tournament
data structures
,
dfs and similar
,
dp
,
implementation
,
trees
1800
x7721
1535C
Unstable String
binary search
,
dp
,
greedy
,
implementation
,
strings
,
two pointers
1400
x16474
1534D
Lost Tree
constructive algorithms
,
interactive
,
trees
1800
x6025
1530D
Secret Santa
constructive algorithms
,
flows
,
graphs
,
greedy
,
math
1600
x9198
1528B
Kavi on Pairing Duty
combinatorics
,
dp
,
math
1700
x8691
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