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64 problems · filtered by 3 tags
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Name
✎
Rating
↕
Solved
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2183F
Jumping Man
brute force
combinatorics
dfs and similar
dp
trees
+
2500
1.2k
2157G
Isaac's Queries
bitmasks
brute force
constructive algorithms
dfs and similar
divide and conquer
dp
greedy
interactive
math
probabilities
+
2800
672
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
2131G
Wafu!
bitmasks
brute force
data structures
dfs and similar
dp
math
+
2000
3.9k
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
2115B
Gellyfish and Camellia Japonica
brute force
constructive algorithms
dfs and similar
dp
graphs
greedy
trees
+
2100
5k
2114F
Small Operations
binary search
brute force
dfs and similar
dp
math
number theory
sortings
+
2000
5.6k
2104F
Numbers and Strings
binary search
brute force
dfs and similar
dp
implementation
math
+
2600
742
2086E
Zebra-like Numbers
bitmasks
brute force
constructive algorithms
dfs and similar
dp
greedy
math
+
2400
1.7k
2063C
Remove Exactly Two
brute force
data structures
dfs and similar
dp
graphs
greedy
sortings
trees
+
1600
15.1k
2035F
Tree Operations
binary search
brute force
dfs and similar
dp
trees
+
2500
1.1k
2034H
Rayan vs. Rayaneh
brute force
dfs and similar
dp
number theory
+
3300
199
2027C
Add Zeros
brute force
data structures
dfs and similar
dp
graphs
greedy
+
1500
14.1k
2021E1
Digital Village (Easy Version)
brute force
data structures
dfs and similar
dp
dsu
fft
graphs
greedy
implementation
math
trees
+
2300
2k
2002F1
Court Blue (Easy Version)
brute force
dfs and similar
dp
math
number theory
+
2600
1k
1988D
The Omnipotent Monster Killer
brute force
dfs and similar
dp
trees
+
2000
6.1k
1975D
Paint the Tree
brute force
dfs and similar
dp
greedy
shortest paths
trees
+
1700
7.6k
1975F
Set
bitmasks
brute force
combinatorics
dfs and similar
divide and conquer
dp
math
+
2600
1.1k
1970G2
Min-Fund Prison (Medium)
brute force
dfs and similar
dp
graphs
trees
+
2200
907
1955G
GCD on a grid
brute force
dfs and similar
dp
implementation
math
number theory
+
1900
6.1k
1949A
Grove
brute force
dfs and similar
dp
geometry
probabilities
+
3300
223
1948C
Arrow Path
brute force
constructive algorithms
dfs and similar
dp
graphs
shortest paths
+
1300
21.5k
1929E
Sasha and the Happy Tree Cutting
bitmasks
brute force
dfs and similar
dp
graphs
greedy
math
trees
+
2300
2.1k
1926F
Vlad and Avoiding X
bitmasks
brute force
dfs and similar
dp
implementation
+
2200
2.1k
1914G1
Light Bulbs (Easy Version)
brute force
combinatorics
dfs and similar
dp
dsu
graphs
math
trees
+
2100
2.5k
1895E
Infinite Card Game
binary search
brute force
data structures
dfs and similar
dp
dsu
games
graphs
greedy
sortings
two pointers
+
2300
1.9k
1874B
Jellyfish and Math
bitmasks
brute force
dfs and similar
dp
graphs
shortest paths
+
2400
1.4k
1863E
Speedrun
brute force
dfs and similar
dp
graphs
greedy
math
sortings
two pointers
+
2100
3.3k
1840F
Railguns
brute force
dfs and similar
dp
graphs
+
2200
2.2k
1829D
Gold Rush
brute force
dfs and similar
dp
implementation
+
1000
35k
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
1804E
Routing
bitmasks
brute force
dfs and similar
dp
graphs
+
2400
1.7k
1797D
Li Hua and Tree
brute force
data structures
dfs and similar
dp
implementation
trees
+
1900
4.7k
1792E
Divisors and Table
brute force
dfs and similar
dp
number theory
+
2400
1.6k
1771D
Hossam and (sub-)palindromic tree
brute force
data structures
dfs and similar
dp
strings
trees
+
2100
3.3k
1741G
Kirill and Company
bitmasks
brute force
dfs and similar
dp
flows
graphs
shortest paths
+
2200
2k
1695D1
Tree Queries (Easy Version)
brute force
constructive algorithms
dfs and similar
dp
greedy
trees
+
2200
2.5k
1681D
Required Length
brute force
dfs and similar
dp
hashing
shortest paths
+
1700
10.9k
1661B
Getting Zero
bitmasks
brute force
dfs and similar
dp
graphs
greedy
shortest paths
+
1300
21.1k
1625E1
Cats on the Upgrade (easy version)
brute force
data structures
dfs and similar
divide and conquer
dp
graphs
trees
+
2500
1.2k
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
1575D
Divisible by Twenty-Five
brute force
dfs and similar
dp
+
1800
2.9k
1569F
Palindromic Hamiltonian Path
brute force
dfs and similar
dp
graphs
hashing
+
3000
493
1560F2
Nearest Beautiful Number (hard version)
bitmasks
brute force
constructive algorithms
dfs and similar
dp
greedy
+
2100
5.1k
1552D
Array Differentiation
bitmasks
brute force
constructive algorithms
dfs and similar
dp
graphs
math
+
1800
8k
1551F
Equidistant Vertices
brute force
combinatorics
dfs and similar
dp
trees
+
2200
2.2k
1519F
Chests and Keys
bitmasks
brute force
dfs and similar
dp
flows
+
3200
797
1444E
Finding the Vertex
brute force
dfs and similar
dp
interactive
trees
+
3500
171
1400F
x-prime Substrings
brute force
dfs and similar
dp
string suffix structures
strings
+
2800
1.2k
1379C
Choosing flowers
binary search
brute force
data structures
dfs and similar
dp
greedy
sortings
two pointers
+
2000
6.2k
1367E
Necklace Assembly
brute force
dfs and similar
dp
graphs
greedy
number theory
+
1900
5.9k
1285D
Dr. Evil Underscores
bitmasks
brute force
dfs and similar
divide and conquer
dp
greedy
strings
trees
+
1900
8.7k
1200F
Graph Traveler
brute force
data structures
dfs and similar
dp
graphs
implementation
math
number theory
+
2300
1.2k
1038E
Maximum Matching
bitmasks
brute force
dfs and similar
dp
graphs
+
2400
1.1k
804D
Expected diameter of a tree
binary search
brute force
dfs and similar
dp
sortings
trees
+
2500
1.6k
750D
New Year and Fireworks
brute force
data structures
dfs and similar
dp
implementation
+
1900
3.2k
653B
Bear and Compressing
brute force
dfs and similar
dp
strings
+
1300
5.4k
513G1
Inversions problem
brute force
dfs and similar
dp
meet-in-the-middle
+
1800
1.9k
165E
Compatible Numbers
bitmasks
brute force
dfs and similar
dp
+
2200
9.8k
showing 1–64 of 64