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Problemset
92 problems · filtered by 3 tags
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Name
✎
Rating
↕
Solved
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2237H
Slime and Queries
data structures
greedy
trees
+
3500
124
2210F
A Simple Problem
binary search
data structures
greedy
math
trees
+
2700
263
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
2187C
Jerry and Tom
data structures
dfs and similar
dsu
games
graphs
greedy
trees
+
2300
1.5k
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
2174D
Secret Message
data structures
dp
greedy
trees
+
3400
317
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
2156F2
Strange Operation (Hard Version)
data structures
greedy
trees
+
3000
266
2131D
Arboris Contractio
data structures
graphs
greedy
trees
+
1400
14.9k
2127E
Ancient Tree
constructive algorithms
data structures
dfs and similar
dsu
greedy
trees
+
2100
4.4k
2101E
Kia Bakes a Cake
data structures
dp
greedy
trees
+
3100
2k
2093G
Shorten the Array
binary search
bitmasks
data structures
dfs and similar
greedy
strings
trees
two pointers
+
1900
4k
2071C
Trapmigiano Reggiano
constructive algorithms
data structures
dfs and similar
dp
greedy
sortings
trees
+
1700
9.9k
2065F
Skibidus and Slay
data structures
dfs and similar
graphs
greedy
trees
+
1700
7.3k
2064D
Eating
binary search
bitmasks
brute force
data structures
dp
greedy
trees
two pointers
+
1900
6k
2063C
Remove Exactly Two
brute force
data structures
dfs and similar
dp
graphs
greedy
sortings
trees
+
1600
15.1k
2063E
Triangle Tree
data structures
dfs and similar
dp
greedy
trees
+
2300
2.4k
2062E1
The Game (Easy Version)
data structures
dfs and similar
games
graphs
greedy
trees
+
2000
4.4k
2042E
Vertex Pairs
binary search
brute force
data structures
dfs and similar
divide and conquer
greedy
implementation
trees
+
2900
535
2033G
Sakurako and Chefir
data structures
dfs and similar
dp
greedy
trees
+
2200
2k
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
2029D
Cool Graph
constructive algorithms
data structures
dfs and similar
dsu
graphs
greedy
trees
+
1900
4k
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2021E3
Digital Village (Extreme Version)
data structures
dfs and similar
dp
dsu
graphs
greedy
math
trees
+
2800
725
2013F1
Game in Tree (Easy Version)
binary search
brute force
data structures
dp
games
greedy
implementation
trees
+
2700
679
1987E
Wonderful Tree!
brute force
data structures
dfs and similar
dsu
greedy
trees
+
2000
4.2k
1980G
Yasya and the Mysterious Tree
bitmasks
data structures
dfs and similar
graphs
greedy
strings
trees
+
2300
1.8k
1976E
Splittable Permutations
combinatorics
data structures
dfs and similar
greedy
math
trees
+
2500
1.3k
1976F
Remove Bridges
data structures
dfs and similar
dp
greedy
sortings
trees
+
2800
893
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
1919D
01 Tree
constructive algorithms
data structures
dsu
greedy
sortings
trees
+
2100
4.6k
1916E
Happy Life in University
data structures
dfs and similar
greedy
trees
+
2300
2.7k
1889F
Doremy's Average Tree
data structures
dp
greedy
trees
+
3500
208
1876G
Clubstep
binary search
brute force
data structures
greedy
trees
+
3500
295
1870H
Standard Graph Problem
data structures
graphs
greedy
trees
+
3500
127
1849F
XOR Partition
binary search
bitmasks
data structures
divide and conquer
greedy
trees
+
2700
911
1843F1
Omsk Metro (simple version)
data structures
dfs and similar
dp
graphs
greedy
math
trees
+
1800
6.5k
1827D
Two Centroids
data structures
dfs and similar
greedy
trees
+
2800
1k
1824C
LuoTianyi and XOR-Tree
data structures
dfs and similar
dp
dsu
greedy
trees
+
2500
1.7k
1794E
Labeling the Tree with Distances
data structures
dp
greedy
hashing
implementation
trees
+
2400
1.6k
1740E
Hanging Hearts
constructive algorithms
data structures
dfs and similar
dp
greedy
trees
+
1800
5.1k
1739D
Reset K Edges
binary search
data structures
dfs and similar
graphs
greedy
trees
+
1900
6.4k
1718D
Permutation for Burenka
data structures
graph matchings
greedy
math
trees
+
3300
449
1709E
XOR Tree
bitmasks
data structures
dfs and similar
dsu
greedy
trees
+
2400
4.2k
1706E
Qpwoeirut and Vertices
binary search
data structures
dfs and similar
divide and conquer
dsu
greedy
trees
+
2300
4k
1654G
Snowy Mountain
data structures
dfs and similar
graphs
greedy
shortest paths
trees
+
2900
474
1633E
Spanning Tree Queries
binary search
data structures
dfs and similar
dsu
graphs
greedy
math
sortings
trees
+
2400
1.8k
1623E
Middle Duplication
data structures
dfs and similar
greedy
strings
trees
+
2500
1.3k
1615E
Purple Crayon
data structures
dfs and similar
games
graphs
greedy
math
sortings
trees
+
2400
1.8k
1610H
Squid Game
data structures
dfs and similar
greedy
trees
+
3100
731
1593E
Gardener and Tree
brute force
data structures
dfs and similar
greedy
implementation
trees
+
1600
15.1k
1535E
Gold Transfer
binary search
data structures
dp
greedy
interactive
trees
+
2200
3.1k
1528C
Trees of Tranquillity
data structures
dfs and similar
greedy
trees
+
2300
3k
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
1508C
Complete the MST
bitmasks
brute force
data structures
dfs and similar
dsu
graphs
greedy
trees
+
2500
1.8k
1494D
Dogeforces
constructive algorithms
data structures
dfs and similar
divide and conquer
dsu
greedy
sortings
trees
+
2300
2.9k
1466D
13th Labour of Heracles
data structures
greedy
sortings
trees
+
1500
15.2k
1452G
Game On Tree
data structures
dfs and similar
greedy
trees
+
2700
579
1427F
Boring Card Game
data structures
greedy
trees
+
3200
418
1416C
XOR Inverse
bitmasks
data structures
divide and conquer
dp
greedy
math
sortings
strings
trees
+
2000
5.2k
1408E
Avoid Rainbow Cycles
data structures
dsu
graphs
greedy
sortings
trees
+
2400
2.2k
1399E1
Weights Division (easy version)
data structures
dfs and similar
greedy
trees
+
2000
6.4k
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
1286B
Numbers on Tree
constructive algorithms
data structures
dfs and similar
graphs
greedy
trees
+
1800
5.7k
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
1062E
Company
binary search
data structures
dfs and similar
greedy
trees
+
2300
2.1k
1059E
Split the Tree
binary search
data structures
dp
greedy
trees
+
2400
1.7k
1042F
Leaf Sets
data structures
dfs and similar
dsu
graphs
greedy
sortings
trees
+
2400
1.6k
1004E
Sonya and Ice Cream
binary search
data structures
dp
greedy
shortest paths
trees
+
2400
1.3k
980E
The Number Games
data structures
greedy
trees
+
2200
2.4k
979D
Kuro and GCD and XOR and SUM
binary search
bitmasks
brute force
data structures
dp
dsu
greedy
math
number theory
strings
trees
+
2200
2.3k
965E
Short Code
data structures
dp
greedy
strings
trees
+
2200
2k
958B2
Maximum Control (medium)
data structures
dfs and similar
graphs
greedy
trees
+
2200
765
923C
Perfect Security
data structures
greedy
strings
trees
+
1800
4.8k
821C
Okabe and Boxes
data structures
greedy
trees
+
1500
8k
722D
Generating Sets
binary search
data structures
dfs and similar
greedy
strings
trees
+
1900
3.4k
708C
Centroids
data structures
dfs and similar
dp
graphs
greedy
trees
+
2300
4.5k
650E
Clockwork Bomb
data structures
dfs and similar
dsu
greedy
trees
+
3200
1.1k
533A
Berland Miners
binary search
data structures
dfs and similar
greedy
trees
+
3000
618
501C
Misha and Forest
constructive algorithms
data structures
greedy
sortings
trees
+
1500
6.1k
414D
Mashmokh and Water Tanks
binary search
data structures
greedy
trees
two pointers
+
2300
777
75D
Big Maximum Sum
data structures
dp
greedy
implementation
math
trees
+
2000
2.1k
37C
Old Berland Language
data structures
greedy
trees
+
1900
2.3k
showing 1–92 of 92