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31 problems · filtered by 3 tags
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Rating
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2207D
Boxed Like a Fish
dfs and similar
dp
games
shortest paths
trees
+
2200
2.3k
2119F
Volcanic Eruptions
dfs and similar
dp
greedy
shortest paths
trees
+
3300
191
2108E
Spruce Dispute
constructive algorithms
dfs and similar
graphs
greedy
implementation
shortest paths
trees
+
2600
922
1975D
Paint the Tree
brute force
dfs and similar
dp
greedy
shortest paths
trees
+
1700
7.6k
1899G
Unusual Entertainment
data structures
dfs and similar
dsu
shortest paths
sortings
trees
two pointers
+
1900
4.1k
1881F
Minimum Maximum Distance
dfs and similar
dp
graphs
shortest paths
trees
+
1700
9.8k
1873H
Mad City
dfs and similar
dsu
games
graphs
shortest paths
trees
+
1700
9.7k
1859F
Teleportation in Byteland
data structures
dfs and similar
divide and conquer
graphs
shortest paths
trees
+
3200
582
1842F
Tenzing and Tree
dfs and similar
greedy
shortest paths
sortings
trees
+
2500
1.9k
1790F
Timofey and Black-White Tree
brute force
dfs and similar
divide and conquer
graphs
greedy
math
shortest paths
trees
+
2100
4.2k
1654G
Snowy Mountain
data structures
dfs and similar
graphs
greedy
shortest paths
trees
+
2900
474
1632E1
Distance Tree (easy version)
binary search
data structures
dfs and similar
graphs
shortest paths
trees
+
2400
1.4k
1632E2
Distance Tree (hard version)
binary search
dfs and similar
shortest paths
trees
+
2700
1.3k
1621H
Trains and Airplanes
dfs and similar
graphs
shortest paths
trees
+
3500
267
1617E
Christmas Chocolates
dfs and similar
dp
games
graphs
implementation
math
number theory
shortest paths
trees
+
2700
1.1k
1611E1
Escape The Maze (easy version)
dfs and similar
greedy
shortest paths
trees
two pointers
+
1700
8.5k
1611E2
Escape The Maze (hard version)
dfs and similar
dp
greedy
shortest paths
trees
+
1900
4.4k
1495D
BFS Trees
combinatorics
dfs and similar
graphs
math
shortest paths
trees
+
2600
1.6k
1370F1
The Hidden Pair (Easy Version)
binary search
dfs and similar
graphs
interactive
shortest paths
trees
+
2400
1.8k
1370F2
The Hidden Pair (Hard Version)
binary search
dfs and similar
graphs
interactive
shortest paths
trees
+
2700
1.7k
1320E
Treeland and Viruses
data structures
dfs and similar
dp
shortest paths
trees
+
3000
1.1k
1304E
1-Trees and Queries
data structures
dfs and similar
shortest paths
trees
+
2000
6k
1209F
Koala and Notebook
data structures
dfs and similar
graphs
shortest paths
strings
trees
+
2600
1.4k
1184E2
Daleks' Invasion (medium)
dfs and similar
graphs
shortest paths
trees
+
2100
1.1k
1176E
Cover it!
dfs and similar
dsu
graphs
shortest paths
trees
+
1700
14k
1037D
Valid BFS?
dfs and similar
graphs
shortest paths
trees
+
1700
19.9k
936E
Iqea
data structures
dfs and similar
divide and conquer
dsu
shortest paths
trees
+
3400
261
796D
Police Stations
constructive algorithms
dfs and similar
dp
graphs
shortest paths
trees
+
2100
7.8k
472D
Design Tutorial: Inverse the Problem
dfs and similar
dsu
shortest paths
trees
+
1900
6.7k
61D
Eternal Victory
dfs and similar
graphs
greedy
shortest paths
trees
+
1800
7.8k
14D
Two Paths
dfs and similar
dp
graphs
shortest paths
trees
two pointers
+
1900
5.4k
showing 1–31 of 31