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483 problems · filtered by 2 tags
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Name
✎
Rating
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2249C
Double-Rift Dial
data structures
dfs and similar
dsu
implementation
two pointers
+
unrated
1k
2244E
Masha and the Garland
data structures
dp
greedy
implementation
math
number theory
strings
+
unrated
7.6k
2242B
Predominant Frequency Division
data structures
greedy
implementation
math
+
1000
16.1k
2242C
Unstable Elements
brute force
data structures
implementation
sortings
two pointers
+
1300
10.5k
2241G
Summmon
binary search
data structures
greedy
implementation
math
number theory
+
2400
831
2236G
Criterion in Burlandia
binary search
bitmasks
brute force
data structures
dfs and similar
divide and conquer
implementation
trees
two pointers
+
2600
385
2234F
Vessels, Heights and Two Versions (Hard Version)
data structures
dfs and similar
dsu
greedy
implementation
two pointers
+
1900
2.3k
2233D
Goods on the Shelf
brute force
data structures
implementation
two pointers
+
1900
3.4k
2230E
Minimum Influence
binary search
data structures
greedy
implementation
math
sortings
two pointers
+
2100
1.5k
2228D
Sanae, Cross and Color
binary search
data structures
implementation
+
1900
2.8k
2228E2
Amanojaku and Sequence (Hard Version)
combinatorics
data structures
implementation
math
+
2500
307
2227D
Palindromex
binary search
brute force
constructive algorithms
data structures
greedy
implementation
two pointers
+
1200
13.9k
2222F
Building Tree
data structures
divide and conquer
dsu
graphs
implementation
+
2600
716
2219D
MEX Replacement on Tree
data structures
implementation
math
trees
+
2700
533
2209F
Dynamic Values And Maximum Sum
data structures
greedy
implementation
trees
+
2700
460
2205D
Simons and Beating Peaks
data structures
divide and conquer
dp
greedy
implementation
trees
+
1700
5.6k
2201D
Binary Not Search and Queries
data structures
greedy
implementation
+
2500
855
2200F
Mooclear Reactor 2
brute force
data structures
greedy
implementation
sortings
+
1900
3.2k
2189F
Zhora the Vacuum Cleaner
data structures
dfs and similar
dp
greedy
implementation
sortings
trees
+
2800
254
2185D
OutOfMemoryError
data structures
implementation
math
two pointers
+
1100
21.9k
2185F
BattleCows
data structures
divide and conquer
implementation
+
1700
5.5k
2185G
Mixing MEXes
data structures
implementation
math
+
1800
3.7k
2183D2
Tree Coloring (Hard Version)
combinatorics
constructive algorithms
data structures
dfs and similar
greedy
implementation
trees
+
2100
2.6k
2179H
Blackslex and Plants
bitmasks
data structures
dp
implementation
math
+
2200
1.4k
2176E
Remove at the lowest cost
data structures
dfs and similar
dp
dsu
greedy
implementation
trees
+
2400
1.3k
2171D
Rae Taylor and Trees (easy version)
binary search
data structures
dp
dsu
greedy
implementation
trees
+
1400
12.3k
2171F
Rae Taylor and Trees (hard version)
binary search
constructive algorithms
data structures
dp
dsu
greedy
implementation
trees
+
1600
7.6k
2167E
khba Loves to Sleep!
binary search
data structures
geometry
greedy
implementation
+
1600
9.6k
2159B
Rectangles
brute force
data structures
dp
dsu
greedy
implementation
two pointers
+
2100
3.4k
2158E
Sink
data structures
divide and conquer
dsu
graphs
implementation
+
2600
665
2157E
Adjusting Drones
binary search
brute force
data structures
dp
dsu
greedy
implementation
sortings
+
1900
4.6k
2156F1
Strange Operation (Easy Version)
brute force
data structures
greedy
implementation
sortings
+
2200
1.7k
2153F
Odd Queries on Odd Array
bitmasks
brute force
data structures
implementation
trees
+
2900
337
2152G
Query Jungle
data structures
implementation
math
matrices
trees
+
2900
2.7k
2150A
Incremental Path
data structures
hashing
implementation
+
1300
13.3k
2133A
Redstone?
brute force
data structures
implementation
math
+
800
31.9k
2126F
1-1-1, Free Tree!
brute force
data structures
dfs and similar
graphs
implementation
trees
+
2000
4.4k
2121H
Ice Baby
binary search
brute force
data structures
dp
implementation
sortings
+
2300
2.3k
2118D2
Red Light, Green Light (Hard version)
binary search
brute force
data structures
dfs and similar
dp
graphs
implementation
math
number theory
+
2200
2.6k
2111D
Creating a Schedule
constructive algorithms
data structures
greedy
implementation
sortings
+
1400
12.3k
2111E
Changing the String
binary search
data structures
greedy
implementation
sortings
strings
+
1900
5.5k
2108C
Neo's Escape
binary search
brute force
data structures
dp
dsu
graphs
greedy
implementation
+
1500
15.1k
2104B
Move to the End
brute force
data structures
dp
greedy
implementation
+
1000
21.3k
2103F
Maximize Nor
bitmasks
data structures
dp
implementation
sortings
+
2600
634
2101D
Mani and Segments
data structures
implementation
sortings
two pointers
+
2500
1.7k
2096F
Wonderful Impostors
data structures
implementation
two pointers
+
3100
496
2094G
Chimpanzini Bananini
data structures
implementation
math
+
1700
8.1k
2090C
Dining Hall
data structures
greedy
implementation
sortings
+
1700
6.5k
2084C
You Soared Afar With Grace
constructive algorithms
data structures
greedy
implementation
+
1400
12k
2077D
Maximum Polygon
brute force
data structures
greedy
implementation
math
+
3100
393
2075F
Beautiful Sequence Returns
binary search
brute force
data structures
implementation
+
3000
529
2074D
Counting Points
brute force
data structures
geometry
implementation
two pointers
+
1400
12.4k
2071D2
Infinite Sequence (Hard Version)
bitmasks
brute force
constructive algorithms
data structures
dp
implementation
math
+
2500
1.1k
2066B
White Magic
constructive algorithms
data structures
dp
greedy
implementation
+
1900
5.6k
2066E
Tropical Season
binary search
data structures
greedy
implementation
+
3300
429
2063D
Game With Triangles
binary search
brute force
data structures
geometry
greedy
implementation
math
ternary search
two pointers
+
2000
5.2k
2063F1
Counting Is Not Fun (Easy Version)
combinatorics
data structures
dfs and similar
dp
dsu
graphs
hashing
implementation
math
trees
+
2400
1.6k
2063F2
Counting Is Not Fun (Hard Version)
combinatorics
data structures
dfs and similar
dsu
graphs
implementation
trees
+
2700
951
2062E2
The Game (Hard Version)
data structures
dfs and similar
games
graphs
implementation
trees
+
3000
464
2057D
Gifts Order
data structures
greedy
implementation
math
matrices
+
2000
5.5k
2053F
Earnest Matrix Complement
brute force
data structures
dp
greedy
implementation
math
+
2600
963
2052G
Geometric Balance
data structures
geometry
implementation
+
2800
209
2049F
MEX OR Mania
bitmasks
brute force
data structures
dsu
implementation
+
2700
600
2048F
Kevin and Math Class
brute force
data structures
divide and conquer
dp
implementation
math
trees
+
2500
1.3k
2046F2
Yandex Cuneiform (Hard Version)
constructive algorithms
data structures
greedy
implementation
+
3500
110
2044H
Hard Demon Problem
constructive algorithms
data structures
dp
implementation
math
+
2100
2.7k
2043E
Matrix Transformation
bitmasks
brute force
data structures
dfs and similar
graphs
greedy
implementation
+
2300
1.9k
2043G
Problem with Queries
brute force
data structures
implementation
+
3000
337
2042D
Recommendations
data structures
implementation
sortings
two pointers
+
1900
5.5k
2042E
Vertex Pairs
binary search
brute force
data structures
dfs and similar
divide and conquer
greedy
implementation
trees
+
2900
535
2042F
Two Subarrays
data structures
dp
implementation
matrices
+
2600
930
2041I
Auto Complete
binary search
data structures
hashing
implementation
sortings
strings
trees
+
2300
688
2038D
Divide OR Conquer
binary search
bitmasks
data structures
dp
implementation
+
2400
888
2035D
Yet Another Real Number Problem
binary search
data structures
divide and conquer
greedy
implementation
math
+
1800
5.9k
2034B
Rakhsh's Revival
data structures
greedy
implementation
two pointers
+
1000
16.1k
2032D
Genokraken
constructive algorithms
data structures
graphs
greedy
implementation
interactive
trees
two pointers
+
1800
6.3k
2032E
Balanced
constructive algorithms
data structures
greedy
implementation
math
+
2400
1.4k
2031D
Penchick and Desert Rabbit
binary search
data structures
dfs and similar
dp
dsu
greedy
implementation
two pointers
+
1700
10.1k
2031E
Penchick and Chloe's Trees
data structures
dfs and similar
dp
greedy
implementation
math
sortings
trees
+
2100
2.8k
2030D
QED's Favorite Permutation
data structures
implementation
sortings
+
1700
8.9k
2030E
MEXimize the Score
combinatorics
data structures
dp
greedy
implementation
math
+
2200
2k
2030F
Orangutan Approved Subarrays
binary search
data structures
dp
greedy
implementation
two pointers
+
2400
1.2k
2028D
Alice's Adventures in Cards
constructive algorithms
data structures
dp
graphs
greedy
implementation
ternary search
+
2000
3.8k
2027D2
The Endspeaker (Hard Version)
binary search
data structures
dp
greedy
implementation
two pointers
+
2200
1.9k
2026C
Action Figures
binary search
brute force
constructive algorithms
data structures
greedy
implementation
+
1500
12.9k
2026D
Sums of Segments
binary search
data structures
dp
implementation
math
+
1900
6.1k
2026F
Bermart Ice Cream
data structures
dfs and similar
divide and conquer
dp
implementation
trees
+
2700
413
2025D
Attribute Checks
brute force
data structures
dp
implementation
math
two pointers
+
1800
8k
2021C2
Adjust The Presentation (Hard Version)
constructive algorithms
data structures
greedy
implementation
sortings
+
1900
4.6k
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2018B
Speedbreaker
binary search
data structures
dp
greedy
implementation
two pointers
+
1900
5.3k
2018D
Max Plus Min Plus Size
data structures
dp
dsu
greedy
implementation
matrices
sortings
+
2200
2.2k
2014G
Milky Days
brute force
data structures
greedy
implementation
+
2200
1.8k
2013F1
Game in Tree (Easy Version)
binary search
brute force
data structures
dp
games
greedy
implementation
trees
+
2700
679
2009G3
Yunli's Subarray Queries (extreme version)
data structures
dp
implementation
+
2700
552
2008E
Alternating String
brute force
data structures
dp
greedy
implementation
strings
+
1500
13.8k
2006D
Iris and Adjacent Products
data structures
greedy
implementation
math
+
2600
997
2005D
Alter the GCD
binary search
brute force
data structures
divide and conquer
implementation
number theory
+
2400
1.3k
2005E2
Subtangle Game (Hard Version)
data structures
dp
games
greedy
implementation
+
2500
1.1k
2004D
Colored Portals
binary search
brute force
data structures
graphs
greedy
implementation
shortest paths
+
1600
13.5k
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