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56 problems · filtered by 3 tags
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Name
✎
Rating
↕
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2230F
Game on Growing Tree
binary search
dfs and similar
divide and conquer
dp
games
implementation
trees
+
2700
510
2228C2
Cirno and Number (Hard Version)
binary search
dfs and similar
dp
greedy
implementation
+
1600
6.1k
2193H
Remove the Grail Tree
dfs and similar
dp
graphs
greedy
implementation
trees
+
2400
1.1k
2189F
Zhora the Vacuum Cleaner
data structures
dfs and similar
dp
greedy
implementation
sortings
trees
+
2800
254
2176E
Remove at the lowest cost
data structures
dfs and similar
dp
dsu
greedy
implementation
trees
+
2400
1.3k
2127H
23 Rises Again
brute force
dfs and similar
dp
flows
graph matchings
graphs
greedy
implementation
probabilities
trees
+
3100
1.9k
2118D1
Red Light, Green Light (Easy version)
brute force
dfs and similar
dp
graphs
implementation
number theory
+
1700
8.6k
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
2104F
Numbers and Strings
binary search
brute force
dfs and similar
dp
implementation
math
+
2600
742
2097B
Baggage Claim
combinatorics
dfs and similar
dp
dsu
graphs
implementation
math
trees
+
2300
2k
2086C
Disappearing Permutation
dfs and similar
dp
dsu
graphs
greedy
implementation
+
1300
16.6k
2063F1
Counting Is Not Fun (Easy Version)
combinatorics
data structures
dfs and similar
dp
dsu
graphs
hashing
implementation
math
trees
+
2400
1.6k
2044G2
Medium Demon Problem (hard version)
dfs and similar
dp
dsu
graphs
implementation
trees
+
1900
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
2026F
Bermart Ice Cream
data structures
dfs and similar
divide and conquer
dp
implementation
trees
+
2700
413
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2003D2
Turtle and a MEX Problem (Hard Version)
dfs and similar
dp
graphs
greedy
implementation
math
+
2100
4.7k
1985H2
Maximize the Largest Component (Hard Version)
data structures
dfs and similar
dp
dsu
implementation
+
2200
2k
1955G
GCD on a grid
brute force
dfs and similar
dp
implementation
math
number theory
+
1900
6.1k
1950G
Shuffling Songs
bitmasks
dfs and similar
dp
graphs
hashing
implementation
strings
+
1900
6.3k
1942D
Learning to Paint
binary search
data structures
dfs and similar
dp
greedy
implementation
sortings
+
2100
3.4k
1941D
Rudolf and the Ball Game
dfs and similar
dp
implementation
+
1200
21.3k
1926F
Vlad and Avoiding X
bitmasks
brute force
dfs and similar
dp
implementation
+
2200
2.1k
1926G
Vlad and Trouble at MIT
dfs and similar
dp
flows
graphs
greedy
implementation
trees
+
1900
4.7k
1900E
Transitive Graph
dfs and similar
dp
dsu
graphs
implementation
+
2100
2.7k
1856E2
PermuTree (hard version)
bitmasks
dfs and similar
dp
fft
greedy
implementation
math
trees
+
2700
1.8k
1833G
Ksyusha and Chinchilla
constructive algorithms
dfs and similar
dp
dsu
greedy
implementation
trees
+
1800
6.5k
1829D
Gold Rush
brute force
dfs and similar
dp
implementation
+
1000
35k
1797D
Li Hua and Tree
brute force
data structures
dfs and similar
dp
implementation
trees
+
1900
4.7k
1646D
Weight the Tree
constructive algorithms
dfs and similar
dp
implementation
trees
+
2000
4.5k
1617E
Christmas Chocolates
dfs and similar
dp
games
graphs
implementation
math
number theory
shortest paths
trees
+
2700
1.1k
1598A
Computer Game
brute force
dfs and similar
dp
implementation
+
800
25.9k
1598E
Staircases
brute force
combinatorics
data structures
dfs and similar
dp
implementation
math
+
2100
2.5k
1593F
Red-Black Number
dfs and similar
dp
implementation
math
meet-in-the-middle
+
2100
2.7k
1549B
Gregor and the Pawn Game
dfs and similar
dp
flows
graph matchings
graphs
greedy
implementation
+
800
27.2k
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
1498D
Bananas in a Microwave
dfs and similar
dp
graphs
implementation
+
2200
2.5k
1476D
Journey
dfs and similar
dp
dsu
implementation
+
1700
9.3k
1401D
Maximum Distributed Tree
dfs and similar
dp
greedy
implementation
math
number theory
sortings
trees
+
1800
10.7k
1393D
Rarity and New Dress
dfs and similar
dp
implementation
shortest paths
+
2100
4.2k
1200F
Graph Traveler
brute force
data structures
dfs and similar
dp
graphs
implementation
math
number theory
+
2300
1.2k
1182D
Complete Mirror
constructive algorithms
dfs and similar
dp
hashing
implementation
trees
+
2400
1k
1175E
Minimal Segment Cover
data structures
dfs and similar
divide and conquer
dp
greedy
implementation
trees
+
2200
4.7k
910A
The Way to Home
dfs and similar
dp
greedy
implementation
+
800
14.3k
765E
Tree Folding
dfs and similar
dp
greedy
implementation
trees
+
2200
1.4k
763A
Timofey and a tree
dfs and similar
dp
dsu
graphs
implementation
trees
+
1600
12.1k
750D
New Year and Fireworks
brute force
data structures
dfs and similar
dp
implementation
+
1900
3.2k
463D
Gargari and Permutations
dfs and similar
dp
graphs
implementation
+
1900
7.4k
455B
A Lot of Games
dfs and similar
dp
games
implementation
strings
trees
+
1900
7.1k
374C
Inna and Dima
dfs and similar
dp
graphs
implementation
+
1900
3k
251E
Tree and Table
dfs and similar
dp
implementation
trees
+
3000
211
87D
Beautiful Road
dfs and similar
dp
dsu
graphs
implementation
sortings
trees
+
2300
1.1k
81E
Pairs
dfs and similar
dp
dsu
graphs
implementation
trees
+
2700
460
63E
Sweets Game
bitmasks
dfs and similar
dp
games
implementation
+
2000
888
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