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37 problems · filtered by 3 tags
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Name
✎
Rating
↕
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2207F
Hanabi
binary search
data structures
dp
dsu
flows
graph matchings
graphs
greedy
+
2900
315
2129A
Double Perspective
constructive algorithms
dp
dsu
graphs
greedy
sortings
+
1300
18.3k
2108C
Neo's Escape
binary search
brute force
data structures
dp
dsu
graphs
greedy
implementation
+
1500
15.1k
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
2057E1
Another Exercise on Graphs (Easy Version)
binary search
brute force
dp
dsu
graphs
shortest paths
sortings
+
2300
2.7k
2057E2
Another Exercise on Graphs (hard version)
binary search
dfs and similar
dp
dsu
graphs
shortest paths
sortings
+
2500
2k
2051G
Snakes
bitmasks
dp
dsu
graphs
+
2100
2.5k
2044G2
Medium Demon Problem (hard version)
dfs and similar
dp
dsu
graphs
implementation
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
2021E2
Digital Village (Hard Version)
data structures
dp
dsu
graphs
math
trees
+
2500
1.3k
2021E3
Digital Village (Extreme Version)
data structures
dfs and similar
dp
dsu
graphs
greedy
math
trees
+
2800
725
2020D
Connect the Dots
brute force
dp
dsu
graphs
math
trees
+
1800
7.6k
2008D
Sakurako's Hobby
dp
dsu
graphs
math
+
1100
23.9k
1923E
Count Paths
data structures
dfs and similar
dp
dsu
graphs
trees
+
2000
5.3k
1914G1
Light Bulbs (Easy Version)
brute force
combinatorics
dfs and similar
dp
dsu
graphs
math
trees
+
2100
2.5k
1900E
Transitive Graph
dfs and similar
dp
dsu
graphs
implementation
+
2100
2.7k
1895E
Infinite Card Game
binary search
brute force
data structures
dfs and similar
dp
dsu
games
graphs
greedy
sortings
two pointers
+
2300
1.9k
1763F
Edge Queries
data structures
dfs and similar
dp
dsu
graphs
trees
+
3000
750
1594D
The Number of Imposters
constructive algorithms
dfs and similar
dp
dsu
graphs
+
1700
9.8k
1574F
Occurrences
combinatorics
dfs and similar
dp
dsu
fft
graphs
+
2700
786
1550F
Jumping Around
binary search
data structures
divide and conquer
dp
dsu
graphs
shortest paths
+
2700
958
1534C
Little Alawn's Puzzle
combinatorics
dp
dsu
graphs
math
+
1300
14k
1408G
Clusterization Counting
combinatorics
dp
dsu
fft
graphs
trees
+
2700
1.4k
1305G
Kuroni and Antihype
bitmasks
brute force
dp
dsu
graphs
+
3500
1.5k
1220E
Tourism
dfs and similar
dp
dsu
graphs
greedy
trees
+
2200
3.1k
1131D
Gourmet choice
dfs and similar
dp
dsu
graphs
greedy
+
2000
3.7k
1120D
Power Tree
dfs and similar
dp
dsu
graphs
greedy
trees
+
2500
1.8k
766D
Mahmoud and a Dictionary
data structures
dfs and similar
dp
dsu
graphs
+
2000
4k
763A
Timofey and a tree
dfs and similar
dp
dsu
graphs
implementation
trees
+
1600
12.1k
650C
Table Compression
dfs and similar
dp
dsu
graphs
greedy
+
2200
2.2k
505B
Mr. Kitayuta's Colorful Graph
dfs and similar
dp
dsu
graphs
+
1400
15.2k
141E
Clearing Up
constructive algorithms
dp
dsu
graphs
+
2300
1.4k
95E
Lucky Country
dp
dsu
graphs
+
2500
2.1k
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
showing 1–37 of 37