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37 problems · filtered by 3 tags
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2217E
Definitely Larger
binary search
constructive algorithms
data structures
graphs
greedy
sortings
+
2000
2.5k
2207F
Hanabi
binary search
data structures
dp
dsu
flows
graph matchings
graphs
greedy
+
2900
315
2195G
Idiot First Search and Queries
binary search
data structures
dp
graphs
trees
+
2300
1.2k
2164F2
Chain Prefix Rank (Hard Version)
binary search
combinatorics
data structures
dfs and similar
dp
graphs
math
trees
+
2900
648
2156E
Best Time to Buy and Sell Stock
binary search
brute force
data structures
dp
games
graphs
greedy
+
2500
1k
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
2108C
Neo's Escape
binary search
brute force
data structures
dp
dsu
graphs
greedy
implementation
+
1500
15.1k
2022E2
Billetes MX (Hard Version)
binary search
combinatorics
data structures
dsu
graphs
+
2600
730
2004D
Colored Portals
binary search
brute force
data structures
graphs
greedy
implementation
shortest paths
+
1600
13.5k
2002D2
DFS Checker (Hard Version)
binary search
data structures
dfs and similar
graphs
hashing
trees
+
2300
2.9k
1920F1
Smooth Sailing (Easy Version)
binary search
brute force
data structures
dfs and similar
dsu
graphs
shortest paths
+
2500
1.3k
1920F2
Smooth Sailing (Hard Version)
binary search
data structures
dsu
geometry
graphs
trees
+
3000
668
1903F
Babysitting
2-sat
binary search
data structures
graphs
trees
+
2500
976
1895E
Infinite Card Game
binary search
brute force
data structures
dfs and similar
dp
dsu
games
graphs
greedy
sortings
two pointers
+
2300
1.9k
1866K
Keen Tree Calculation
binary search
data structures
dp
geometry
graphs
implementation
trees
+
2500
585
1851G
Vlad and the Mountains
binary search
data structures
dsu
graphs
implementation
sortings
trees
two pointers
+
2000
4.2k
1809F
Traveling in Berland
binary search
data structures
graphs
greedy
implementation
+
2500
972
1801D
The way home
binary search
data structures
dp
graphs
greedy
shortest paths
sortings
+
2100
2.9k
1739D
Reset K Edges
binary search
data structures
dfs and similar
graphs
greedy
trees
+
1900
6.4k
1651D
Nearest Excluded Points
binary search
data structures
dfs and similar
graphs
shortest paths
+
1900
6.7k
1633E
Spanning Tree Queries
binary search
data structures
dfs and similar
dsu
graphs
greedy
math
sortings
trees
+
2400
1.8k
1632E1
Distance Tree (easy version)
binary search
data structures
dfs and similar
graphs
shortest paths
trees
+
2400
1.4k
1625E2
Cats on the Upgrade (hard version)
binary search
data structures
dfs and similar
graphs
trees
+
2800
705
1615H
Reindeer Games
binary search
constructive algorithms
data structures
divide and conquer
flows
graphs
shortest paths
+
3000
457
1588F
Jumping Through the Array
binary search
data structures
graphs
two pointers
+
3500
359
1574D
The Strongest Build
binary search
brute force
data structures
dfs and similar
graphs
greedy
hashing
implementation
+
2000
4.9k
1572A
Book
binary search
brute force
data structures
dp
graphs
implementation
sortings
+
1800
10.6k
1550F
Jumping Around
binary search
data structures
divide and conquer
dp
dsu
graphs
shortest paths
+
2700
958
1516D
Cut
binary search
data structures
dp
graphs
number theory
two pointers
+
2100
5.3k
1470E
Strange Permutation
binary search
combinatorics
data structures
dp
graphs
implementation
two pointers
+
3200
981
1419F
Rain of Fire
binary search
data structures
dfs and similar
dsu
graphs
implementation
+
2800
632
1403A
The Potion of Great Power
*special
2-sat
binary search
data structures
graphs
interactive
sortings
two pointers
+
2400
359
1307D
Cow and Fields
binary search
data structures
dfs and similar
graphs
greedy
shortest paths
sortings
+
1900
7.4k
1091E
New Year and the Acquaintance Estimation
binary search
data structures
graphs
greedy
implementation
math
sortings
+
2400
1.1k
901C
Bipartite Segments
binary search
data structures
dfs and similar
dsu
graphs
two pointers
+
2300
1.3k
739B
Alyona and a tree
binary search
data structures
dfs and similar
graphs
trees
+
1900
5.2k
229B
Planets
binary search
data structures
graphs
shortest paths
+
1700
5.9k
showing 1–37 of 37