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47 problems · filtered by 3 tags
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Name
✎
Rating
↕
Solved
↕
2211E
Minimum Path Cover
brute force
dp
greedy
interactive
math
number theory
trees
+
2500
1k
2183F
Jumping Man
brute force
combinatorics
dfs and similar
dp
trees
+
2500
1.2k
2138C1
Maple and Tree Beauty (Easy Version)
brute force
dfs and similar
dp
graphs
trees
+
1800
5.7k
2138C2
Maple and Tree Beauty (Hard Version)
bitmasks
brute force
dfs and similar
dp
fft
trees
+
2000
3.6k
2127H
23 Rises Again
brute force
dfs and similar
dp
flows
graph matchings
graphs
greedy
implementation
probabilities
trees
+
3100
1.9k
2115B
Gellyfish and Camellia Japonica
brute force
constructive algorithms
dfs and similar
dp
graphs
greedy
trees
+
2100
5k
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
2048F
Kevin and Math Class
brute force
data structures
divide and conquer
dp
implementation
math
trees
+
2500
1.3k
2035F
Tree Operations
binary search
brute force
dfs and similar
dp
trees
+
2500
1.1k
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2020D
Connect the Dots
brute force
dp
dsu
graphs
math
trees
+
1800
7.6k
2013F1
Game in Tree (Easy Version)
binary search
brute force
data structures
dp
games
greedy
implementation
trees
+
2700
679
1988D
The Omnipotent Monster Killer
brute force
dfs and similar
dp
trees
+
2000
6.1k
1983G
Your Loss
bitmasks
brute force
dp
trees
+
3000
325
1975D
Paint the Tree
brute force
dfs and similar
dp
greedy
shortest paths
trees
+
1700
7.6k
1970G2
Min-Fund Prison (Medium)
brute force
dfs and similar
dp
graphs
trees
+
2200
907
1967C
Fenwick Tree
bitmasks
brute force
combinatorics
data structures
dp
math
trees
+
2300
2.3k
1929E
Sasha and the Happy Tree Cutting
bitmasks
brute force
dfs and similar
dp
graphs
greedy
math
trees
+
2300
2.1k
1914G1
Light Bulbs (Easy Version)
brute force
combinatorics
dfs and similar
dp
dsu
graphs
math
trees
+
2100
2.5k
1830D
Mex Tree
brute force
dp
trees
+
2800
956
1822F
Gardening Friends
brute force
dfs and similar
dp
graphs
trees
+
1700
7.8k
1805E
There Should Be a Lot of Maximums
brute force
data structures
dfs and similar
dp
trees
two pointers
+
2300
2k
1797D
Li Hua and Tree
brute force
data structures
dfs and similar
dp
implementation
trees
+
1900
4.7k
1774G
Segment Covering
brute force
combinatorics
constructive algorithms
data structures
dp
trees
+
3200
692
1771D
Hossam and (sub-)palindromic tree
brute force
data structures
dfs and similar
dp
strings
trees
+
2100
3.3k
1767E
Algebra Flash
bitmasks
brute force
dp
graphs
math
meet-in-the-middle
trees
+
2500
1.3k
1720D1
Xor-Subsequence (easy version)
bitmasks
brute force
dp
strings
trees
two pointers
+
1800
6.8k
1709F
Multiset of Strings
bitmasks
brute force
dp
fft
flows
graphs
math
meet-in-the-middle
trees
+
2500
729
1695D1
Tree Queries (Easy Version)
brute force
constructive algorithms
dfs and similar
dp
greedy
trees
+
2200
2.5k
1661E
Narrow Components
brute force
data structures
dp
dsu
math
trees
+
2500
1.2k
1625E1
Cats on the Upgrade (easy version)
brute force
data structures
dfs and similar
divide and conquer
dp
graphs
trees
+
2500
1.2k
1606F
Tree Queries
brute force
dp
trees
+
2800
781
1594E2
Rubik's Cube Coloring (hard version)
brute force
dp
implementation
math
trees
+
2300
1.7k
1580B
Mathematics Curriculum
brute force
combinatorics
dp
trees
+
2600
1.4k
1580D
Subsequence
brute force
divide and conquer
dp
greedy
trees
+
2900
1.2k
1551F
Equidistant Vertices
brute force
combinatorics
dfs and similar
dp
trees
+
2200
2.2k
1540B
Tree Array
brute force
combinatorics
dp
graphs
math
probabilities
trees
+
2300
3.1k
1444E
Finding the Vertex
brute force
dfs and similar
dp
interactive
trees
+
3500
171
1285D
Dr. Evil Underscores
bitmasks
brute force
dfs and similar
divide and conquer
dp
greedy
strings
trees
+
1900
8.7k
1285E
Delete a Segment
brute force
constructive algorithms
data structures
dp
graphs
sortings
trees
two pointers
+
2300
2k
1244D
Paint the Tree
brute force
constructive algorithms
dp
graphs
implementation
trees
+
1800
8.4k
1109D
Sasha and Interesting Fact from Graph Theory
brute force
combinatorics
dp
math
trees
+
2400
1.5k
1025D
Recovering BST
brute force
dp
math
number theory
trees
+
2100
4.3k
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
815C
Karen and Supermarket
brute force
dp
trees
+
2400
3.5k
804D
Expected diameter of a tree
binary search
brute force
dfs and similar
dp
sortings
trees
+
2500
1.6k
showing 1–47 of 47