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62 problems · filtered by 3 tags
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Name
✎
Rating
↕
Solved
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2236G
Criterion in Burlandia
binary search
bitmasks
brute force
data structures
dfs and similar
divide and conquer
implementation
trees
two pointers
+
2600
385
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
2189F
Zhora the Vacuum Cleaner
data structures
dfs and similar
dp
greedy
implementation
sortings
trees
+
2800
254
2183D2
Tree Coloring (Hard Version)
combinatorics
constructive algorithms
data structures
dfs and similar
greedy
implementation
trees
+
2100
2.6k
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
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
2126F
1-1-1, Free Tree!
brute force
data structures
dfs and similar
graphs
implementation
trees
+
2000
4.4k
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
2048F
Kevin and Math Class
brute force
data structures
divide and conquer
dp
implementation
math
trees
+
2500
1.3k
2042E
Vertex Pairs
binary search
brute force
data structures
dfs and similar
divide and conquer
greedy
implementation
trees
+
2900
535
2041I
Auto Complete
binary search
data structures
hashing
implementation
sortings
strings
trees
+
2300
688
2032D
Genokraken
constructive algorithms
data structures
graphs
greedy
implementation
interactive
trees
two pointers
+
1800
6.3k
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
2013F1
Game in Tree (Easy Version)
binary search
brute force
data structures
dp
games
greedy
implementation
trees
+
2700
679
1975E
Chain Queries
binary search
data structures
dfs and similar
implementation
trees
+
2100
2.9k
1935F
Andrey's Tree
binary search
constructive algorithms
data structures
dfs and similar
dsu
greedy
implementation
trees
+
2800
634
1927F
Microcycle
data structures
dfs and similar
dsu
graphs
greedy
implementation
sortings
trees
+
1900
5.6k
1904E
Tree Queries
data structures
dfs and similar
graphs
implementation
trees
+
2500
1.4k
1904F
Beautiful Tree
data structures
dfs and similar
graphs
implementation
trees
+
2800
581
1902F
Trees and XOR Queries Again
data structures
dfs and similar
divide and conquer
graphs
implementation
math
trees
+
2400
1.5k
1878G
wxhtzdy ORO Tree
binary search
bitmasks
brute force
data structures
dfs and similar
implementation
trees
+
2300
1.5k
1866K
Keen Tree Calculation
binary search
data structures
dp
geometry
graphs
implementation
trees
+
2500
585
1861C
Queries for the Array
data structures
dfs and similar
implementation
strings
trees
+
1600
12.5k
1851G
Vlad and the Mountains
binary search
data structures
dsu
graphs
implementation
sortings
trees
two pointers
+
2000
4.2k
1844G
Tree Weights
bitmasks
constructive algorithms
data structures
dfs and similar
implementation
math
matrices
number theory
trees
+
3000
1.2k
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
1783G
Weighed Tree Radius
data structures
divide and conquer
implementation
trees
+
2800
625
1648E
Air Reform
data structures
dfs and similar
divide and conquer
dsu
graphs
implementation
trees
+
3200
601
1625D
Binary Spiders
bitmasks
data structures
implementation
math
sortings
trees
+
2300
2.4k
1593E
Gardener and Tree
brute force
data structures
dfs and similar
greedy
implementation
trees
+
1600
15.1k
1535D
Playoff Tournament
data structures
dfs and similar
dp
implementation
trees
+
1800
8.6k
1523C
Compression and Expansion
brute force
data structures
greedy
implementation
trees
+
1600
9.2k
1521D
Nastia Plays with a Tree
constructive algorithms
data structures
dfs and similar
dp
dsu
greedy
implementation
trees
+
2500
2.4k
1511C
Yet Another Card Deck
brute force
data structures
implementation
trees
+
1100
34.4k
1416D
Graph and Queries
data structures
dsu
graphs
implementation
trees
+
2600
2.9k
1388D
Captain Flint and Treasure
data structures
dfs and similar
graphs
greedy
implementation
trees
+
2000
7k
1385F
Removing Leaves
data structures
greedy
implementation
trees
+
2300
2.9k
1380E
Merging Towers
data structures
dsu
implementation
trees
+
2300
2.5k
1208H
Red Blue Tree
data structures
implementation
trees
+
3500
253
1181D
Irrigation
binary search
data structures
implementation
sortings
trees
two pointers
+
2200
2.9k
1179C
Serge and Dining Room
binary search
data structures
graph matchings
greedy
implementation
math
trees
+
2200
2.5k
1175E
Minimal Segment Cover
data structures
dfs and similar
divide and conquer
dp
greedy
implementation
trees
+
2200
4.7k
1149C
Tree Generator™
data structures
implementation
trees
+
2700
1.7k
833D
Red-Black Cobweb
data structures
divide and conquer
implementation
trees
+
2800
524
776F
Sherlock's bet to Moriarty
constructive algorithms
data structures
divide and conquer
geometry
graphs
implementation
trees
+
2800
543
696A
Lorenzo Von Matterhorn
brute force
data structures
implementation
trees
+
1500
6.5k
540E
Infinite Inversions
binary search
data structures
implementation
sortings
trees
+
2100
2.6k
403E
Two Rooted Trees
data structures
implementation
trees
+
2900
275
371D
Vessels
data structures
dsu
implementation
trees
+
1800
6.6k
331D3
Escaping on Beaveractor
data structures
implementation
trees
+
3000
206
117E
Tree or not Tree
data structures
divide and conquer
graphs
implementation
trees
+
2900
451
75D
Big Maximum Sum
data structures
dp
greedy
implementation
math
trees
+
2000
2.1k
showing 1–62 of 62