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171 problems · filtered by 2 tags
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Name
✎
Rating
↕
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1406C
Link Cut Centroids
constructive algorithms
dfs and similar
graphs
trees
+
1700
12k
1396E
Distance Matching
constructive algorithms
dfs and similar
trees
+
3200
441
1391E
Pairs of Pairs
constructive algorithms
dfs and similar
graphs
greedy
trees
+
2600
2.1k
1379E
Inverse Genealogy
constructive algorithms
divide and conquer
dp
math
trees
+
2800
538
1375G
Tree Modification
brute force
constructive algorithms
dfs and similar
graph matchings
graphs
trees
+
2800
2.3k
1364D
Ehab's Last Corollary
constructive algorithms
dfs and similar
graphs
greedy
implementation
trees
+
2100
5.1k
1340D
Nastya and Time Machine
constructive algorithms
dfs and similar
graphs
trees
+
2600
1.1k
1338B
Edge Weight Assignment
bitmasks
constructive algorithms
dfs and similar
greedy
math
trees
+
1800
9.7k
1338D
Nested Rubber Bands
constructive algorithms
dfs and similar
dp
math
trees
+
2700
1.2k
1325C
Ehab and Path-etic MEXs
constructive algorithms
dfs and similar
greedy
trees
+
1500
17.9k
1311E
Construct the Binary Tree
brute force
constructive algorithms
trees
+
2200
2.9k
1305D
Kuroni and the Celebration
constructive algorithms
dfs and similar
interactive
trees
+
1900
5.4k
1296F
Berland Beauty
constructive algorithms
dfs and similar
greedy
sortings
trees
+
2100
3.1k
1286B
Numbers on Tree
constructive algorithms
data structures
dfs and similar
graphs
greedy
trees
+
1800
5.7k
1285E
Delete a Segment
brute force
constructive algorithms
data structures
dp
graphs
sortings
trees
two pointers
+
2300
2k
1283F
DIY Garland
constructive algorithms
greedy
trees
+
2200
2.2k
1278E
Tests for problem D
constructive algorithms
dfs and similar
divide and conquer
trees
+
2200
2.1k
1244D
Paint the Tree
brute force
constructive algorithms
dp
graphs
implementation
trees
+
1800
8.4k
1228F
One Node is Gone
constructive algorithms
implementation
trees
+
2500
620
1225F
Tree Factory
constructive algorithms
greedy
trees
+
2500
1k
1214E
Petya and Construction Set
constructive algorithms
graphs
math
sortings
trees
+
2000
2.9k
1214H
Tiles Placement
constructive algorithms
dfs and similar
trees
+
2800
493
1205D
Almost All
constructive algorithms
trees
+
2700
792
1188A2
Add on a Tree: Revolution
constructive algorithms
dfs and similar
implementation
trees
+
2500
1.3k
1182D
Complete Mirror
constructive algorithms
dfs and similar
dp
hashing
implementation
trees
+
2400
1k
1174F
Ehab and the Big Finale
constructive algorithms
divide and conquer
graphs
implementation
interactive
trees
+
2400
2.1k
1141G
Privatization of Roads in Treeland
binary search
constructive algorithms
dfs and similar
graphs
greedy
trees
+
1900
2.6k
1110G
Tree-Tac-Toe
constructive algorithms
games
trees
+
3100
771
1098A
Sum in the tree
constructive algorithms
dfs and similar
greedy
trees
+
1600
9.7k
1098C
Construct a tree
binary search
constructive algorithms
dfs and similar
graphs
greedy
trees
+
2400
1.2k
1092E
Minimal Diameter Forest
constructive algorithms
dfs and similar
greedy
trees
+
2000
2.2k
1085D
Minimum Diameter Tree
constructive algorithms
implementation
trees
+
1700
6k
1056D
Decorate Apple Tree
constructive algorithms
dfs and similar
dp
graphs
greedy
sortings
trees
+
1600
6.8k
1053E
Euler tour
constructive algorithms
trees
+
3500
250
963B
Destruction of a Tree
constructive algorithms
dfs and similar
dp
greedy
trees
+
2000
3k
959C
Mahmoud and Ehab and the wrong algorithm
constructive algorithms
trees
+
1500
6.3k
923F
Public Service
constructive algorithms
graphs
trees
+
3200
143
911F
Tree Destruction
constructive algorithms
dfs and similar
graphs
greedy
trees
+
2400
2.4k
901A
Hashing Trees
constructive algorithms
trees
+
1500
5.4k
847L
Berland SU Computer Network
constructive algorithms
dfs and similar
graphs
hashing
trees
+
2400
363
843C
Upgrading Tree
constructive algorithms
dfs and similar
graphs
math
trees
+
2600
416
830E
Perpetual Motion Machine
constructive algorithms
dp
graphs
implementation
math
trees
+
3100
373
827B
High Load
constructive algorithms
greedy
implementation
trees
+
1800
3.7k
822F
Madness
constructive algorithms
dfs and similar
trees
+
2500
400
796C
Bank Hacking
constructive algorithms
data structures
dp
trees
+
1900
3.2k
796D
Police Stations
constructive algorithms
dfs and similar
dp
graphs
shortest paths
trees
+
2100
7.8k
793E
Problem of offices
constructive algorithms
dfs and similar
dp
trees
+
2900
327
776F
Sherlock's bet to Moriarty
constructive algorithms
data structures
divide and conquer
geometry
graphs
implementation
trees
+
2800
543
766E
Mahmoud and a xor trip
bitmasks
constructive algorithms
data structures
dfs and similar
dp
math
trees
+
2100
3.6k
761E
Dasha and Puzzle
constructive algorithms
dfs and similar
graphs
greedy
trees
+
2000
2.4k
750F
New Year and Finding Roots
constructive algorithms
implementation
interactive
trees
+
2800
621
748F
Santa Clauses and a Soccer Championship
constructive algorithms
dfs and similar
graphs
trees
+
2300
744
746G
New Roads
constructive algorithms
graphs
trees
+
2100
1.7k
698B
Fix a Tree
constructive algorithms
dfs and similar
dsu
graphs
trees
+
1700
6.2k
690F2
Tree of Life (medium)
constructive algorithms
hashing
trees
+
2700
112
681D
Gifts by the List
constructive algorithms
dfs and similar
graphs
trees
+
2000
1.9k
639B
Bear and Forgotten Tree 3
constructive algorithms
graphs
trees
+
1600
7k
576B
Invariance of Tree
constructive algorithms
dfs and similar
greedy
trees
+
2100
1.9k
573C
Bear and Drawing
constructive algorithms
dfs and similar
trees
+
2300
1.1k
570D
Tree Requests
binary search
bitmasks
constructive algorithms
dfs and similar
graphs
trees
+
2200
9.3k
566E
Restoring Map
bitmasks
constructive algorithms
trees
+
3200
719
501C
Misha and Forest
constructive algorithms
data structures
greedy
sortings
trees
+
1500
6.1k
482B
Interesting Array
constructive algorithms
data structures
trees
+
1800
7.9k
452B
4-point polyline
brute force
constructive algorithms
geometry
trees
+
1800
2.1k
429C
Guess the Tree
bitmasks
constructive algorithms
dp
greedy
trees
+
2300
1.1k
321C
Ciel the Commander
constructive algorithms
dfs and similar
divide and conquer
greedy
trees
+
2100
9.8k
317C
Balance
constructive algorithms
dfs and similar
graphs
trees
+
2500
584
260D
Black and White Tree
constructive algorithms
dsu
graphs
greedy
trees
+
2100
1.7k
196C
Paint Tree
constructive algorithms
divide and conquer
geometry
sortings
trees
+
2200
1.1k
193A
Cutting Figure
constructive algorithms
graphs
trees
+
1700
4.7k
29D
Ant on the Tree
constructive algorithms
dfs and similar
trees
+
2000
3k
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