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Kotlin Heroes: Episode 11
9 days
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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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Custom test
Problems
#
Name
1613D
MEX Sequences
dp
,
math
1900
x4590
1613C
Poisoned Dagger
binary search
1200
x24296
1613B
Absent Remainder
greedy
,
implementation
,
sortings
1000
x21586
1613A
Long Comparison
implementation
,
math
900
x24441
1612G
Max Sum Array
combinatorics
,
constructive algorithms
,
greedy
,
sortings
2500
x837
1612F
Armor and Weapons
brute force
,
dp
,
greedy
,
shortest paths
2800
x604
1612E
Messages
brute force
,
dp
,
greedy
,
probabilities
,
sortings
2000
x2491
1612D
X-Magic Pair
math
,
number theory
1600
x9119
1612C
Chat Ban
binary search
,
math
1300
x17227
1612B
Special Permutation
constructive algorithms
,
greedy
900
x17168
1612A
Distance
brute force
,
constructive algorithms
800
x17641
1611G
Robot and Candies
data structures
,
graph matchings
,
greedy
2500
x639
1611F
ATM and Students
binary search
,
data structures
,
two pointers
1800
x6426
1611E2
Escape The Maze (hard version)
dfs and similar
,
dp
,
greedy
,
shortest paths
,
trees
1900
x3807
1611E1
Escape The Maze (easy version)
dfs and similar
,
greedy
,
shortest paths
,
trees
,
two pointers
1700
x7247
1611D
Weights Assignment For Tree Edges
constructive algorithms
,
trees
1500
x9825
1611C
Polycarp Recovers the Permutation
constructive algorithms
1000
x18316
1611B
Team Composition: Programmers and Mathematicians
binary search
,
constructive algorithms
,
math
800
x29434
1611A
Make Even
constructive algorithms
,
math
800
x31360
1610I
Mashtali vs AtCoder
games
,
trees
3100
x283
1610H
Squid Game
data structures
,
dfs and similar
,
greedy
,
trees
3100
x492
1610G
AmShZ Wins a Bet
data structures
,
greedy
,
hashing
3300
x440
1610F
Mashtali: a Space Oddysey
constructive algorithms
,
dfs and similar
,
graphs
3000
x531
1610E
AmShZ and G.O.A.T.
binary search
,
brute force
,
greedy
,
implementation
,
math
2300
x1668
1610D
Not Quite Lee
combinatorics
,
dp
,
math
,
number theory
2000
x2696
1610C
Keshi Is Throwing a Party
binary search
,
greedy
1600
x11506
1610B
Kalindrome Array
greedy
,
two pointers
1100
x15790
1610A
Anti Light's Cell Guessing
math
900
x16070
1609H
Pushing Robots
3500
x92
1609G
A Stroll Around the Matrix
data structures
,
greedy
,
math
3000
x398
1609F
Interesting Sections
data structures
,
divide and conquer
,
meet-in-the-middle
,
two pointers
2800
x776
1609E
William The Oblivious
bitmasks
,
data structures
,
dp
,
matrices
2400
x2068
1609D
Social Network
dsu
,
graphs
,
greedy
,
implementation
,
trees
1600
x7277
1609C
Complex Market Analysis
binary search
,
dp
,
implementation
,
number theory
,
schedules
,
two pointers
1400
x9709
1609B
William the Vigilant
implementation
,
strings
1100
x11679
1609A
Divide and Multiply
greedy
,
implementation
,
math
,
number theory
900
x17069
1608G
Alphabetic Tree
binary search
,
data structures
,
dfs and similar
,
hashing
,
string suffix structures
,
strings
,
trees
3500
x157
1608F
MEX counting
combinatorics
,
dp
,
implementation
3200
x584
1608E
The Cells on the Paper
binary search
,
implementation
,
sortings
2800
x434
1608D
Dominoes
combinatorics
,
fft
,
graphs
,
math
,
number theory
2400
x1384
1608C
Game Master
data structures
,
dfs and similar
,
dp
,
graphs
,
greedy
,
two pointers
1700
x6624
1608B
Build the Permutation
constructive algorithms
,
greedy
1200
x11662
1608A
Find Array
constructive algorithms
,
math
800
x19022
1607H
Banquet Preparations 2
greedy
,
sortings
,
two pointers
2200
x1229
1607G
Banquet Preparations 1
greedy
2200
x1551
1607F
Robot on the Board 2
brute force
,
dfs and similar
,
graphs
,
implementation
2300
x1935
1607E
Robot on the Board 1
implementation
1600
x9293
1607D
Blue-Red Permutation
greedy
,
math
,
sortings
1300
x16806
1607C
Minimum Extraction
brute force
,
sortings
1000
x24906
1607B
Odd Grasshopper
math
900
x26171
1607A
Linear Keyboard
implementation
,
strings
800
x37282
1606F
Tree Queries
brute force
,
dp
,
trees
2800
x558
1606E
Arena
combinatorics
,
dp
,
math
2100
x3509
1606D
Red-Blue Matrix
brute force
,
constructive algorithms
,
implementation
,
sortings
2400
x1434
1606C
Banknotes
greedy
,
number theory
1400
x14111
1606B
Update Files
greedy
,
implementation
,
math
1100
x18638
1606A
AB Balance
strings
900
x24488
1605F
PalindORme
combinatorics
,
dp
2900
x302
1605E
Array Equalizer
binary search
,
greedy
,
implementation
,
math
,
number theory
,
sortings
,
two pointers
2400
x1029
1605D
Treelabeling
bitmasks
,
constructive algorithms
,
dfs and similar
,
games
,
greedy
,
implementation
,
trees
2100
x2923
1605C
Dominant Character
brute force
,
greedy
,
implementation
,
strings
1400
x16906
1605B
Reverse Sort
greedy
,
sortings
1000
x17998
1605A
A.M. Deviation
math
,
number theory
800
x20583
1604B
XOR Specia-LIS-t
1100
x15627
1604A
Era
greedy
800
x21428
1603F
October 18, 2017
combinatorics
,
dp
,
implementation
,
math
2700
x279
1603E
A Perfect Problem
combinatorics
,
dp
,
math
3200
x421
1603D
Artistic Partition
divide and conquer
,
dp
,
number theory
3000
x672
1603C
Extreme Extension
dp
,
greedy
,
math
,
number theory
2300
x2034
1603B
Moderate Modular Mode
constructive algorithms
,
math
,
number theory
1600
x13504
1603A
Di-visible Confusion
constructive algorithms
,
math
,
number theory
1300
x16598
1602B
Divine Array
constructive algorithms
,
implementation
1100
x14061
1602A
Two Subsequences
implementation
800
x18959
1601F
Two Sorts
binary search
,
dfs and similar
,
math
,
meet-in-the-middle
3400
x176
1601E
Phys Ed Online
data structures
,
dp
,
greedy
2900
x474
1601D
Difficult Mountain
data structures
,
dp
,
greedy
,
sortings
2700
x1445
1601C
Optimal Insertion
data structures
,
divide and conquer
,
dp
,
greedy
,
sortings
2300
x2005
1601B
Frog Traveler
data structures
,
dfs and similar
,
dp
,
graphs
,
shortest paths
,
two pointers
1900
x4935
1601A
Array Elimination
bitmasks
,
greedy
,
math
,
number theory
1300
x14511
1600J
Robot Factory
bitmasks
,
dfs and similar
1400
x3890
1600F
Party Organization
brute force
,
math
,
probabilities
2300
x485
1600E
Array Game
games
,
greedy
,
two pointers
1900
x2086
1599J
Bob's Beautiful Array
bitmasks
,
brute force
,
greedy
2600
x298
1599I
Desert
data structures
,
graphs
2700
x119
1599H
Hidden Fortress
interactive
,
math
2100
x1048
1599G
Shortest path
brute force
,
geometry
,
math
,
shortest paths
2700
x370
1599F
Mars
hashing
2700
x335
1599E
Two Arrays
data structures
,
matrices
3200
x67
1599D
Bubble Popping
3200
x30
1599C
Bubble Strike
combinatorics
,
math
,
probabilities
,
ternary search
2000
x1645
1599B
Restaurant Game
3100
x139
1599A
Weights
constructive algorithms
,
greedy
,
two pointers
2600
x675
1598G
The Sum of Good Numbers
hashing
,
math
,
string suffix structures
,
strings
3200
x331
1598F
RBS
binary search
,
bitmasks
,
brute force
,
data structures
,
dp
2400
x1417
1598E
Staircases
brute force
,
combinatorics
,
data structures
,
dfs and similar
,
dp
,
implementation
,
math
2100
x2295
1598D
Training Session
combinatorics
,
data structures
,
geometry
,
implementation
,
math
1700
x8634
1598C
Delete Two Elements
data structures
,
dp
,
implementation
,
math
,
two pointers
1200
x20744
1598B
Groups
brute force
,
implementation
1000
x16042
1598A
Computer Game
brute force
,
dfs and similar
,
dp
,
implementation
800
x23250
1594F
Ideal Farm
constructive algorithms
,
math
2400
x1338
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