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Contest is running
Kotlin Heroes: Practice 10
12:21:34
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Before contest
Kotlin Heroes: Episode 10
13:21:33
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Difficulty:
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greedy
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
1263B
PIN Codes
greedy
,
implementation
1400
x11122
1914E1
Game with Marbles (Easy Version)
brute force
,
games
,
greedy
,
sortings
1400
x11153
1282B1
K for the Price of One (Easy Version)
dp
,
greedy
,
sortings
1400
x11174
1914E2
Game with Marbles (Hard Version)
games
,
greedy
,
sortings
1400
x11252
1696C
Fishingprince Plays With Array
constructive algorithms
,
greedy
,
implementation
,
math
1400
x11312
388A
Fox and Box Accumulation
greedy
,
sortings
1400
x11340
1844D
Row Major
constructive algorithms
,
greedy
,
math
,
number theory
,
strings
1400
x11626
1684C
Column Swapping
brute force
,
constructive algorithms
,
greedy
,
implementation
,
sortings
1400
x12027
1276A
As Simple as One and Two
dp
,
greedy
1400
x12043
445B
DZY Loves Chemistry
dfs and similar
,
dsu
,
greedy
1400
x12120
1800E1
Unforgivable Curse (easy version)
brute force
,
constructive algorithms
,
dsu
,
graphs
,
greedy
,
strings
1400
x12159
1847C
Vampiric Powers, anyone?
bitmasks
,
brute force
,
dp
,
greedy
1400
x12223
1860C
Game on Permutation
data structures
,
dp
,
games
,
greedy
1400
x12434
1918C
XOR-distance
bitmasks
,
greedy
,
implementation
,
math
1400
x12558
1833D
Flipper
brute force
,
constructive algorithms
,
greedy
1400
x12692
1256B
Minimize the Permutation
greedy
1400
x12785
1840D
Wooden Toy Festival
binary search
,
greedy
,
sortings
1400
x12868
1733D1
Zero-One (Easy Version)
constructive algorithms
,
greedy
,
math
1400
x12914
1758C
Almost All Multiples
greedy
,
number theory
1400
x12915
1721C
Min-Max Array Transformation
binary search
,
greedy
,
two pointers
1400
x12978
1517C
Fillomino 2
constructive algorithms
,
dfs and similar
,
greedy
,
implementation
1400
x13066
363C
Fixing Typos
greedy
,
implementation
1400
x13070
1923C
Find B
constructive algorithms
,
greedy
1400
x13154
1654C
Alice and the Cake
data structures
,
greedy
,
implementation
,
sortings
1400
x13160
1929C
Sasha and the Casino
binary search
,
brute force
,
constructive algorithms
,
games
,
greedy
,
math
1400
x13237
1559D1
Mocha and Diana (Easy Version)
brute force
,
constructive algorithms
,
dsu
,
graphs
,
greedy
,
trees
1400
x13239
1183D
Candy Box (easy version)
greedy
,
sortings
1400
x13324
1845C
Strong Password
binary search
,
dp
,
greedy
,
strings
1400
x13337
1837D
Bracket Coloring
constructive algorithms
,
greedy
1400
x13348
1644C
Increase Subarray Sums
brute force
,
dp
,
greedy
,
implementation
1400
x13358
1931E
Anna and the Valentine's Day Gift
games
,
greedy
,
math
,
sortings
1400
x13361
1749C
Number Game
binary search
,
data structures
,
games
,
greedy
,
implementation
1400
x13374
437C
The Child and Toy
graphs
,
greedy
,
sortings
1400
x13515
1197C
Array Splitting
greedy
,
sortings
1400
x13667
1540A
Great Graphs
constructive algorithms
,
graphs
,
greedy
,
shortest paths
,
sortings
1400
x13682
492C
Vanya and Exams
greedy
,
sortings
1400
x13698
1606C
Banknotes
greedy
,
number theory
1400
x13751
1697C
awoo's Favorite Problem
binary search
,
constructive algorithms
,
data structures
,
greedy
,
implementation
,
strings
,
two pointers
1400
x13944
1494B
Berland Crossword
bitmasks
,
brute force
,
greedy
,
implementation
1400
x13951
1682C
LIS or Reverse LIS?
constructive algorithms
,
greedy
,
implementation
,
math
1400
x14123
1573B
Swaps
greedy
,
math
,
sortings
1400
x14143
1380B
Universal Solution
greedy
1400
x14226
1706C
Qpwoeirut And The City
dp
,
flows
,
greedy
,
implementation
1400
x14443
1452B
Toy Blocks
binary search
,
greedy
,
math
,
sortings
1400
x14443
1108D
Diverse Garland
constructive algorithms
,
dp
,
greedy
1400
x14702
1443C
The Delivery Dilemma
binary search
,
greedy
,
sortings
1400
x14954
1551B2
Wonderful Coloring - 2
binary search
,
constructive algorithms
,
data structures
,
greedy
1400
x15050
1691C
Sum of Substrings
brute force
,
constructive algorithms
,
greedy
,
math
,
strings
1400
x15102
1728C
Digital Logarithm
data structures
,
greedy
,
sortings
1400
x15187
1628A
Meximum Array
binary search
,
constructive algorithms
,
greedy
,
implementation
,
math
,
two pointers
1400
x15206
1451C
String Equality
dp
,
greedy
,
hashing
,
implementation
,
strings
1400
x15214
1579D
Productive Meeting
constructive algorithms
,
graphs
,
greedy
1400
x15413
1320A
Journey Planning
data structures
,
dp
,
greedy
,
math
,
sortings
1400
x15459
1701C
Schedule Management
binary search
,
greedy
,
implementation
,
two pointers
1400
x15768
1095C
Powers Of Two
bitmasks
,
greedy
1400
x15791
1312C
Adding Powers
bitmasks
,
greedy
,
implementation
,
math
,
number theory
,
ternary search
1400
x15876
1519C
Berland Regional
brute force
,
data structures
,
greedy
,
number theory
,
sortings
1400
x15979
1548A
Web of Lies
brute force
,
graphs
,
greedy
1400
x16031
1535C
Unstable String
binary search
,
dp
,
greedy
,
implementation
,
strings
,
two pointers
1400
x16098
1462D
Add to Neighbour and Remove
greedy
,
math
,
number theory
1400
x16235
1393B
Applejack and Storages
constructive algorithms
,
data structures
,
greedy
,
implementation
1400
x16263
1624D
Palindromes Coloring
binary search
,
greedy
,
sortings
,
strings
1400
x16269
1605C
Dominant Character
brute force
,
greedy
,
implementation
,
strings
1400
x16344
1515C
Phoenix and Towers
constructive algorithms
,
data structures
,
greedy
1400
x16525
1919C
Grouping Increases
data structures
,
dp
,
greedy
1400
x16833
1362C
Johnny and Another Rating Drop
bitmasks
,
greedy
,
math
1400
x17035
1332B
Composite Coloring
brute force
,
constructive algorithms
,
greedy
,
math
,
number theory
1400
x17085
26B
Regular Bracket Sequence
greedy
1400
x17533
538B
Quasi Binary
constructive algorithms
,
dp
,
greedy
,
implementation
1400
x17604
1490E
Accidental Victory
binary search
,
data structures
,
greedy
1400
x18399
1463B
Find The Array
bitmasks
,
constructive algorithms
,
greedy
1400
x18769
1369C
RationalLee
greedy
,
math
,
sortings
,
two pointers
1400
x19063
401C
Team
constructive algorithms
,
greedy
,
implementation
1400
x19277
1380C
Create The Teams
brute force
,
dp
,
greedy
,
implementation
,
sortings
1400
x19897
1520E
Arranging The Sheep
greedy
,
math
1400
x19977
1375C
Element Extermination
constructive algorithms
,
data structures
,
greedy
1400
x20447
1506D
Epic Transformation
constructive algorithms
,
data structures
,
greedy
1400
x20741
1201C
Maximum Median
binary search
,
greedy
,
math
,
sortings
1400
x21574
1365C
Rotation Matching
constructive algorithms
,
data structures
,
greedy
,
implementation
1400
x22383
1348B
Phoenix and Beauty
constructive algorithms
,
data structures
,
greedy
,
sortings
1400
x24550
515C
Drazil and Factorial
greedy
,
math
,
sortings
1400
x24977
479C
Exams
greedy
,
sortings
1400
x28556
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x44551
520B
Two Buttons
dfs and similar
,
graphs
,
greedy
,
implementation
,
math
,
shortest paths
1400
x48007
241A
Old Peykan
greedy
1300
x2203
39B
Company Income Growth
greedy
1300
x2563
57A
Square Earth?
dfs and similar
,
greedy
,
implementation
1300
x2813
62A
A Student's Dream
greedy
,
math
1300
x3366
673B
Problems for Round
greedy
,
implementation
1300
x3497
1090A
Company Merging
greedy
1300
x4040
43C
Lucky Tickets
greedy
1300
x4148
161A
Dress'em in Vests!
binary search
,
brute force
,
greedy
,
two pointers
1300
x4680
92B
Binary Number
greedy
1300
x4710
1070D
Garbage Disposal
greedy
1300
x4851
924A
Mystical Mosaic
greedy
,
implementation
1300
x4907
27B
Tournament
bitmasks
,
brute force
,
dfs and similar
,
greedy
1300
x5147
215B
Olympic Medal
greedy
,
math
1300
x5365
886C
Petya and Catacombs
dsu
,
greedy
,
implementation
,
trees
1300
x5430
787B
Not Afraid
greedy
,
implementation
,
math
1300
x5571
628C
Bear and String Distance
greedy
,
strings
1300
x5680
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