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2271F
Beautiful Pillers
constructive algorithms
,
constructive algorithms
,
data structures
,
dp
,
greedy
,
implementation
2300
x1040
2257E
Busy Beaver
brute force
,
data structures
,
divide and conquer
,
dp
,
greedy
,
implementation
,
sortings
2100
x2323
2244E
Masha and the Garland
data structures
,
dp
,
greedy
,
implementation
,
math
,
number theory
,
strings
1400
x9695
2242B
Predominant Frequency Division
data structures
,
greedy
,
implementation
,
math
1000
x18397
2241G
Summmon
binary search
,
data structures
,
greedy
,
implementation
,
math
,
number theory
2400
x1063
2234F
Vessels, Heights and Two Versions (Hard Version)
data structures
,
dfs and similar
,
dsu
,
greedy
,
implementation
,
two pointers
2000
x2514
2230E
Minimum Influence
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
,
two pointers
2200
x1603
2227D
Palindromex
binary search
,
brute force
,
constructive algorithms
,
data structures
,
greedy
,
implementation
,
two pointers
1200
x15344
2209F
Dynamic Values And Maximum Sum
data structures
,
data structures
,
greedy
,
implementation
,
trees
2700
x490
2205D
Simons and Beating Peaks
data structures
,
data structures
,
divide and conquer
,
dp
,
dp
,
greedy
,
implementation
,
trees
1700
x5974
2201D
Binary Not Search and Queries
data structures
,
greedy
,
implementation
2500
x902
2200F
Mooclear Reactor 2
brute force
,
data structures
,
greedy
,
implementation
,
sortings
1900
x3505
2189F
Zhora the Vacuum Cleaner
data structures
,
dfs and similar
,
dp
,
greedy
,
implementation
,
sortings
,
trees
2800
x296
2183D2
Tree Coloring (Hard Version)
combinatorics
,
constructive algorithms
,
data structures
,
dfs and similar
,
greedy
,
implementation
,
trees
2100
x2674
2176E
Remove at the lowest cost
data structures
,
dfs and similar
,
dp
,
dsu
,
greedy
,
implementation
,
trees
2400
x1420
2171F
Rae Taylor and Trees (hard version)
binary search
,
constructive algorithms
,
data structures
,
dp
,
dsu
,
greedy
,
implementation
,
trees
1600
x7998
2171D
Rae Taylor and Trees (easy version)
binary search
,
data structures
,
dp
,
dsu
,
greedy
,
implementation
,
trees
1400
x12862
2167E
khba Loves to Sleep!
binary search
,
data structures
,
geometry
,
greedy
,
implementation
1600
x9991
2159B
Rectangles
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
implementation
,
two pointers
2100
x4319
2157E
Adjusting Drones
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
implementation
,
sortings
1900
x5773
2156F1
Strange Operation (Easy Version)
brute force
,
data structures
,
greedy
,
implementation
,
sortings
2300
x1733
2111E
Changing the String
binary search
,
data structures
,
greedy
,
implementation
,
sortings
,
strings
1900
x5620
2111D
Creating a Schedule
constructive algorithms
,
data structures
,
greedy
,
implementation
,
sortings
1400
x12585
2108C
Neo's Escape
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
graphs
,
greedy
,
implementation
1500
x15514
2104B
Move to the End
brute force
,
data structures
,
dp
,
greedy
,
implementation
1000
x21684
2090C
Dining Hall
data structures
,
greedy
,
implementation
,
sortings
1700
x6617
2084C
You Soared Afar With Grace
constructive algorithms
,
data structures
,
greedy
,
implementation
1400
x12238
2077D
Maximum Polygon
brute force
,
data structures
,
greedy
,
implementation
,
math
3100
x497
2066E
Tropical Season
binary search
,
data structures
,
greedy
,
implementation
3300
x481
2066B
White Magic
constructive algorithms
,
data structures
,
dp
,
greedy
,
implementation
1900
x5707
2063D
Game With Triangles
binary search
,
brute force
,
data structures
,
geometry
,
greedy
,
implementation
,
math
,
ternary search
,
two pointers
2000
x5280
2057D
Gifts Order
data structures
,
greedy
,
implementation
,
math
,
matrices
2000
x5647
2053F
Earnest Matrix Complement
brute force
,
data structures
,
dp
,
greedy
,
implementation
,
math
2600
x985
2046F2
Yandex Cuneiform (Hard Version)
constructive algorithms
,
data structures
,
greedy
,
implementation
3500
x114
2043E
Matrix Transformation
bitmasks
,
brute force
,
data structures
,
dfs and similar
,
graphs
,
greedy
,
implementation
2300
x1902
2042E
Vertex Pairs
binary search
,
brute force
,
data structures
,
dfs and similar
,
divide and conquer
,
greedy
,
implementation
,
trees
2900
x556
2035D
Yet Another Real Number Problem
binary search
,
data structures
,
divide and conquer
,
greedy
,
implementation
,
math
1800
x6014
2034B
Rakhsh's Revival
data structures
,
greedy
,
implementation
,
two pointers
1000
x16441
2032E
Balanced
constructive algorithms
,
data structures
,
greedy
,
implementation
,
math
2400
x1476
2032D
Genokraken
constructive algorithms
,
data structures
,
graphs
,
greedy
,
implementation
,
interactive
,
trees
,
two pointers
1800
x6437
2031E
Penchick and Chloe's Trees
data structures
,
dfs and similar
,
dp
,
greedy
,
implementation
,
math
,
sortings
,
trees
2100
x2824
2031D
Penchick and Desert Rabbit
binary search
,
data structures
,
dfs and similar
,
dp
,
dsu
,
greedy
,
implementation
,
two pointers
1700
x10341
2030F
Orangutan Approved Subarrays
binary search
,
data structures
,
dp
,
greedy
,
implementation
,
two pointers
2400
x1266
2030E
MEXimize the Score
combinatorics
,
data structures
,
dp
,
greedy
,
implementation
,
math
2200
x2082
2028D
Alice's Adventures in Cards
constructive algorithms
,
data structures
,
dp
,
graphs
,
greedy
,
implementation
,
ternary search
2000
x3898
2027D2
The Endspeaker (Hard Version)
binary search
,
data structures
,
dp
,
greedy
,
implementation
,
two pointers
2200
x1993
2026C
Action Figures
binary search
,
brute force
,
constructive algorithms
,
data structures
,
greedy
,
implementation
1500
x13182
2021E1
Digital Village (Easy Version)
brute force
,
data structures
,
dfs and similar
,
dp
,
dsu
,
fft
,
graphs
,
greedy
,
implementation
,
math
,
trees
2300
x2009
2021C2
Adjust The Presentation (Hard Version)
constructive algorithms
,
data structures
,
greedy
,
implementation
,
sortings
1900
x4661
2018D
Max Plus Min Plus Size
data structures
,
dp
,
dsu
,
greedy
,
implementation
,
matrices
,
sortings
2200
x2298
2018B
Speedbreaker
binary search
,
data structures
,
dp
,
greedy
,
implementation
,
two pointers
1900
x5439
2014G
Milky Days
brute force
,
data structures
,
greedy
,
implementation
2200
x1892
2013F1
Game in Tree (Easy Version)
binary search
,
brute force
,
data structures
,
dp
,
games
,
greedy
,
implementation
,
trees
2700
x696
2008E
Alternating String
brute force
,
data structures
,
dp
,
greedy
,
implementation
,
strings
1500
x14397
2006D
Iris and Adjacent Products
data structures
,
greedy
,
implementation
,
math
2600
x1040
2005E2
Subtangle Game (Hard Version)
data structures
,
dp
,
games
,
greedy
,
implementation
2500
x1124
2004D
Colored Portals
binary search
,
brute force
,
data structures
,
graphs
,
greedy
,
implementation
,
shortest paths
1600
x13754
2001D
Longest Max Min Subsequence
brute force
,
constructive algorithms
,
data structures
,
greedy
,
implementation
1900
x6779
1998E2
Eliminating Balls With Merging (Hard Version)
binary search
,
brute force
,
data structures
,
divide and conquer
,
greedy
,
implementation
2500
x966
1980E
Permutation of Rows and Columns
constructive algorithms
,
data structures
,
greedy
,
hashing
,
implementation
,
math
,
matrices
,
sortings
1600
x13526
1978E
Computing Machine
brute force
,
data structures
,
dp
,
greedy
,
implementation
2000
x4757
1978D
Elections
data structures
,
greedy
,
implementation
,
math
1600
x14075
1978C
Manhattan Permutations
constructive algorithms
,
data structures
,
greedy
,
implementation
,
math
1300
x18268
1954E
Chain Reaction
binary search
,
data structures
,
dsu
,
greedy
,
implementation
,
math
,
number theory
2200
x3191
1942D
Learning to Paint
binary search
,
data structures
,
dfs and similar
,
dp
,
greedy
,
implementation
,
sortings
2100
x3474
1936C
Pokémon Arena
data structures
,
graphs
,
greedy
,
implementation
,
shortest paths
,
sortings
2400
x1821
1935F
Andrey's Tree
binary search
,
constructive algorithms
,
data structures
,
dfs and similar
,
dsu
,
greedy
,
implementation
,
trees
2800
x700
1927F
Microcycle
data structures
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
implementation
,
sortings
,
trees
1900
x5804
1918B
Minimize Inversions
constructive algorithms
,
data structures
,
greedy
,
implementation
,
sortings
900
x27805
1904D2
Set To Max (Hard Version)
constructive algorithms
,
data structures
,
divide and conquer
,
greedy
,
implementation
,
sortings
1800
x5988
1868F
LIS?
data structures
,
greedy
,
implementation
3500
x145
1848B
Vika and the Bridge
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
1200
x27691
1847D
Professor Higashikata
data structures
,
dsu
,
greedy
,
implementation
,
strings
1900
x4369
1837F
Editorial for Two
binary search
,
data structures
,
greedy
,
implementation
2400
x2872
1834D
Survey in Class
brute force
,
data structures
,
greedy
,
implementation
,
sortings
1900
x5714
1809F
Traveling in Berland
binary search
,
data structures
,
graphs
,
greedy
,
implementation
2500
x1015
1807G1
Subsequence Addition (Easy Version)
brute force
,
data structures
,
dp
,
greedy
,
implementation
,
sortings
1100
x23016
1799A
Recent Actions
data structures
,
greedy
,
implementation
,
math
800
x12540
1798B
Three Sevens
brute force
,
data structures
,
greedy
,
implementation
1000
x19213
1794E
Labeling the Tree with Distances
data structures
,
dp
,
greedy
,
hashing
,
implementation
,
trees
2400
x1629
1781E
Rectangle Shrinking
binary search
,
brute force
,
data structures
,
greedy
,
implementation
,
two pointers
2300
x1494
1749C
Number Game
binary search
,
data structures
,
games
,
greedy
,
implementation
1400
x16107
1748C
Zero-Sum Prefixes
brute force
,
data structures
,
dp
,
greedy
,
implementation
1600
x13493
1720E
Misha and Paintings
constructive algorithms
,
data structures
,
greedy
,
implementation
,
math
2700
x1119
1716C
Robot in a Hallway
data structures
,
dp
,
greedy
,
implementation
,
ternary search
2000
x4707
1714B
Remove Prefix
data structures
,
greedy
,
implementation
800
x34868
1710B
Rain
binary search
,
brute force
,
data structures
,
geometry
,
greedy
,
implementation
,
math
2100
x2863
1697C
awoo's Favorite Problem
binary search
,
constructive algorithms
,
data structures
,
greedy
,
implementation
,
strings
,
two pointers
1400
x16098
1690C
Restoring the Duration of Tasks
data structures
,
greedy
,
implementation
800
x28449
1676F
Longest Strike
data structures
,
greedy
,
implementation
,
sortings
,
two pointers
1300
x21015
1674F
Desktop Rearrangement
data structures
,
greedy
,
implementation
1800
x5782
1665E
MinimizOR
bitmasks
,
brute force
,
data structures
,
divide and conquer
,
greedy
,
implementation
,
two pointers
2500
x1914
1659D
Reverse Sort Sum
constructive algorithms
,
data structures
,
greedy
,
implementation
,
math
,
two pointers
1900
x4532
1654C
Alice and the Cake
data structures
,
greedy
,
implementation
,
sortings
1400
x14735
1650E
Rescheduling the Exam
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
1900
x4527
1638D
Big Brush
constructive algorithms
,
data structures
,
greedy
,
implementation
2000
x4909
1626C
Monsters And Spells
binary search
,
data structures
,
dp
,
greedy
,
implementation
,
math
,
two pointers
1700
x12118
1621F
Strange Instructions
data structures
,
greedy
,
implementation
2700
x669
1621E
New School
binary search
,
data structures
,
dp
,
greedy
,
implementation
,
sortings
2300
x1973
1621B
Integers Shop
data structures
,
greedy
,
implementation
1500
x14780
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