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110 problems · filtered by 3 tags
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Name
✎
Rating
↕
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2244E
Masha and the Garland
data structures
dp
greedy
implementation
math
number theory
strings
+
unrated
7.6k
2205D
Simons and Beating Peaks
data structures
divide and conquer
dp
greedy
implementation
trees
+
1700
5.6k
2189F
Zhora the Vacuum Cleaner
data structures
dfs and similar
dp
greedy
implementation
sortings
trees
+
2800
254
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
2159B
Rectangles
brute force
data structures
dp
dsu
greedy
implementation
two pointers
+
2100
3.4k
2157E
Adjusting Drones
binary search
brute force
data structures
dp
dsu
greedy
implementation
sortings
+
1900
4.6k
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
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
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
2063F1
Counting Is Not Fun (Easy Version)
combinatorics
data structures
dfs and similar
dp
dsu
graphs
hashing
implementation
math
trees
+
2400
1.6k
2053F
Earnest Matrix Complement
brute force
data structures
dp
greedy
implementation
math
+
2600
963
2048F
Kevin and Math Class
brute force
data structures
divide and conquer
dp
implementation
math
trees
+
2500
1.3k
2044H
Hard Demon Problem
constructive algorithms
data structures
dp
implementation
math
+
2100
2.7k
2042F
Two Subarrays
data structures
dp
implementation
matrices
+
2600
930
2038D
Divide OR Conquer
binary search
bitmasks
data structures
dp
implementation
+
2400
888
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
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
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
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
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
2005E2
Subtangle Game (Hard Version)
data structures
dp
games
greedy
implementation
+
2500
1.1k
1985H2
Maximize the Largest Component (Hard Version)
data structures
dfs and similar
dp
dsu
implementation
+
2200
2k
1978E
Computing Machine
brute force
data structures
dp
greedy
implementation
+
2000
4.7k
1942D
Learning to Paint
binary search
data structures
dfs and similar
dp
greedy
implementation
sortings
+
2100
3.4k
1926E
Vlad and an Odd Ordering
binary search
bitmasks
data structures
dp
implementation
math
number theory
+
1500
15.2k
1921F
Sum of Progression
brute force
data structures
dp
implementation
math
+
1900
5.2k
1921G
Mischievous Shooter
brute force
data structures
divide and conquer
dp
implementation
+
2200
1.5k
1918D
Blocking Elements
binary search
data structures
dp
implementation
two pointers
+
1900
6.4k
1917D
Yet Another Inversions Problem
combinatorics
data structures
dp
implementation
math
number theory
+
2300
2.1k
1902D
Robot Queries
binary search
data structures
dp
implementation
+
1900
5.4k
1870C
Colorful Table
binary search
data structures
dp
implementation
math
two pointers
+
1300
13.3k
1866K
Keen Tree Calculation
binary search
data structures
dp
geometry
graphs
implementation
trees
+
2500
585
1829G
Hits Different
data structures
dp
implementation
math
+
1600
15.9k
1826E
Walk the Runway
bitmasks
brute force
data structures
dp
graphs
implementation
sortings
+
2400
2k
1807G1
Subsequence Addition (Easy Version)
brute force
data structures
dp
greedy
implementation
sortings
+
1100
22.7k
1797D
Li Hua and Tree
brute force
data structures
dfs and similar
dp
implementation
trees
+
1900
4.7k
1794E
Labeling the Tree with Distances
data structures
dp
greedy
hashing
implementation
trees
+
2400
1.6k
1748C
Zero-Sum Prefixes
brute force
data structures
dp
greedy
implementation
+
1600
13.3k
1746G
Olympiad Training
binary search
data structures
dp
flows
geometry
implementation
sortings
+
3500
118
1722E
Counting Rectangles
brute force
data structures
dp
implementation
+
1600
13.7k
1716C
Robot in a Hallway
data structures
dp
greedy
implementation
ternary search
+
2000
4.7k
1709B
Also Try Minecraft
data structures
dp
implementation
+
900
26.3k
1658E
Gojou and Matrix Game
data structures
dp
games
hashing
implementation
math
number theory
sortings
+
2500
1.3k
1648D
Serious Business
data structures
divide and conquer
dp
implementation
shortest paths
+
2800
1.1k
1627E
Not Escaping
data structures
dp
implementation
shortest paths
two pointers
+
2200
2.9k
1626C
Monsters And Spells
binary search
data structures
dp
greedy
implementation
math
two pointers
+
1700
12k
1621E
New School
binary search
data structures
dp
greedy
implementation
sortings
+
2300
2k
1619E
MEX and Increments
constructive algorithms
data structures
dp
greedy
implementation
math
sortings
+
1700
10.3k
1598C
Delete Two Elements
data structures
dp
implementation
math
two pointers
+
1200
23.9k
1598E
Staircases
brute force
combinatorics
data structures
dfs and similar
dp
implementation
math
+
2100
2.5k
1580A
Portal
brute force
data structures
dp
greedy
implementation
+
1700
3.9k
1572A
Book
binary search
brute force
data structures
dp
graphs
implementation
sortings
+
1800
10.6k
1566F
Points Movement
data structures
dp
greedy
implementation
sortings
+
2600
1.2k
1547E
Air Conditioners
data structures
dp
implementation
shortest paths
sortings
two pointers
+
1500
16.6k
1539E
Game with Cards
binary search
constructive algorithms
data structures
dp
greedy
implementation
+
2500
1.1k
1535D
Playoff Tournament
data structures
dfs and similar
dp
implementation
trees
+
1800
8.6k
1521D
Nastia Plays with a Tree
constructive algorithms
data structures
dfs and similar
dp
dsu
greedy
implementation
trees
+
2500
2.4k
1491C
Pekora and Trampoline
brute force
data structures
dp
greedy
implementation
+
1700
8.4k
1479B1
Painting the Array I
constructive algorithms
data structures
dp
greedy
implementation
+
1900
7.5k
1479B2
Painting the Array II
constructive algorithms
data structures
dp
greedy
implementation
+
2100
4.5k
1473D
Program
data structures
dp
implementation
strings
+
1700
11.1k
1470E
Strange Permutation
binary search
combinatorics
data structures
dp
graphs
implementation
two pointers
+
3200
981
1437E
Make It Increasing
binary search
constructive algorithms
data structures
dp
implementation
+
2200
4k
1420C2
Pokémon Army (hard version)
data structures
divide and conquer
dp
greedy
implementation
+
2100
5.3k
1408D
Searchlights
binary search
brute force
data structures
dp
implementation
sortings
two pointers
+
2000
4.7k
1359D
Yet Another Yet Another Task
data structures
dp
implementation
two pointers
+
2000
10.9k
1301E
Nanosoft
binary search
data structures
dp
implementation
+
2500
1.7k
1284B
New Year and Ascent Sequence
binary search
combinatorics
data structures
dp
implementation
sortings
+
1400
11.6k
1278C
Berry Jam
data structures
dp
greedy
implementation
+
1700
8.8k
1271D
Portals
data structures
dp
greedy
implementation
sortings
+
2100
3.5k
1202C
You Are Given a WASD-string...
brute force
data structures
dp
greedy
implementation
math
strings
+
2100
2.8k
1200D
White Lines
brute force
data structures
dp
implementation
two pointers
+
1900
4.4k
1200F
Graph Traveler
brute force
data structures
dfs and similar
dp
graphs
implementation
math
number theory
+
2300
1.2k
1196D2
RGB Substring (hard version)
data structures
dp
implementation
two pointers
+
1600
10.5k
1189C
Candies!
data structures
dp
implementation
math
+
1400
11.1k
1175E
Minimal Segment Cover
data structures
dfs and similar
divide and conquer
dp
greedy
implementation
trees
+
2200
4.7k
1061C
Multiplicity
data structures
dp
implementation
math
number theory
+
1700
11k
961B
Lecture Sleep
data structures
dp
implementation
two pointers
+
1200
27.1k
893D
Credit Card
data structures
dp
greedy
implementation
+
1900
3.4k
777C
Alyona and Spreadsheet
binary search
data structures
dp
greedy
implementation
two pointers
+
1600
6.9k
761F
Dasha and Photos
brute force
data structures
dp
implementation
+
2600
752
750D
New Year and Fireworks
brute force
data structures
dfs and similar
dp
implementation
+
1900
3.2k
689E
Mike and Geometry Problem
combinatorics
data structures
dp
geometry
implementation
+
2000
2.3k
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