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#
Name
1085D
Minimum Diameter Tree
constructive algorithms
,
implementation
,
trees
1700
x5310
698B
Fix a Tree
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
trees
1700
x5635
1822F
Gardening Friends
brute force
,
dfs and similar
,
dp
,
graphs
,
trees
1700
x5664
1881F
Minimum Maximum Distance
dfs and similar
,
dp
,
graphs
,
shortest paths
,
trees
1700
x6127
1873H
Mad City
dfs and similar
,
dsu
,
games
,
graphs
,
shortest paths
,
trees
1700
x6690
1611E1
Escape The Maze (easy version)
dfs and similar
,
greedy
,
shortest paths
,
trees
,
two pointers
1700
x6989
1714G
Path Prefixes
binary search
,
data structures
,
dfs and similar
,
trees
1700
x7210
1592C
Bakry and Partitioning
bitmasks
,
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
trees
1700
x7661
1950F
0, 1, 2, Tree!
bitmasks
,
brute force
,
greedy
,
implementation
,
trees
1700
x7886
1693B
Fake Plastic Trees
dfs and similar
,
dp
,
greedy
,
trees
1700
x8118
219D
Choosing Capital for Treeland
dfs and similar
,
dp
,
graphs
,
trees
1700
x8712
1406C
Link Cut Centroids
constructive algorithms
,
dfs and similar
,
graphs
,
trees
1700
x9871
1383A
String Transformation 1
dsu
,
graphs
,
greedy
,
sortings
,
strings
,
trees
,
two pointers
1700
x10252
1176E
Cover it!
dfs and similar
,
dsu
,
graphs
,
shortest paths
,
trees
1700
x10516
1037D
Valid BFS?
dfs and similar
,
graphs
,
shortest paths
,
trees
1700
x13964
339D
Xenia and Bit Operations
data structures
,
trees
1700
x23873
1056D
Decorate Apple Tree
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
greedy
,
sortings
,
trees
1600
x5703
979C
Kuro and Walking Route
dfs and similar
,
trees
1600
x6103
639B
Bear and Forgotten Tree 3
constructive algorithms
,
graphs
,
trees
1600
x6403
1899F
Alex's whims
constructive algorithms
,
graphs
,
greedy
,
shortest paths
,
trees
1600
x6827
682C
Alyona and the Tree
dfs and similar
,
dp
,
graphs
,
trees
1600
x7017
1609D
Social Network
dsu
,
graphs
,
greedy
,
implementation
,
trees
1600
x7026
1665C
Tree Infection
binary search
,
greedy
,
sortings
,
trees
1600
x8084
1188A1
Add on a Tree
trees
1600
x8307
1098A
Sum in the tree
constructive algorithms
,
dfs and similar
,
greedy
,
trees
1600
x8385
1523C
Compression and Expansion
brute force
,
data structures
,
greedy
,
implementation
,
trees
1600
x8612
780C
Andryusha and Colored Balloons
dfs and similar
,
graphs
,
greedy
,
trees
1600
x8870
1946C
Tree Cutting
binary search
,
dp
,
greedy
,
implementation
,
trees
1600
x9419
1006E
Military Problem
dfs and similar
,
graphs
,
trees
1600
x9477
369C
Valera and Elections
dfs and similar
,
graphs
,
trees
1600
x9504
1861C
Queries for the Array
data structures
,
dfs and similar
,
implementation
,
strings
,
trees
1600
x9575
763A
Timofey and a tree
dfs and similar
,
dp
,
dsu
,
graphs
,
implementation
,
trees
1600
x10167
1689C
Infected Tree
dfs and similar
,
dp
,
trees
1600
x10701
1593E
Gardener and Tree
brute force
,
data structures
,
dfs and similar
,
greedy
,
implementation
,
trees
1600
x11778
1437D
Minimal Height Tree
graphs
,
greedy
,
shortest paths
,
trees
1600
x12351
1528A
Parsa's Humongous Tree
dfs and similar
,
divide and conquer
,
dp
,
greedy
,
trees
1600
x14008
1363C
Game On Leaves
games
,
trees
1600
x17928
1336A
Linova and Kingdom
dfs and similar
,
dp
,
greedy
,
sortings
,
trees
1600
x19498
431C
k-Tree
dp
,
implementation
,
trees
1600
x24705
212E
IT Restaurants
dfs and similar
,
dp
,
trees
1500
x1680
690C2
Brain Network (medium)
dfs and similar
,
graphs
,
trees
1500
x3592
901A
Hashing Trees
constructive algorithms
,
trees
1500
x5017
501C
Misha and Forest
constructive algorithms
,
data structures
,
greedy
,
sortings
,
trees
1500
x5518
959C
Mahmoud and Ehab and the wrong algorithm
constructive algorithms
,
trees
1500
x5697
696A
Lorenzo Von Matterhorn
brute force
,
data structures
,
implementation
,
trees
1500
x5993
821C
Okabe and Boxes
data structures
,
greedy
,
trees
1500
x6648
930A
Peculiar apple-tree
dfs and similar
,
graphs
,
trees
1500
x6841
1611D
Weights Assignment For Tree Edges
constructive algorithms
,
trees
1500
x9565
1466D
13th Labour of Heracles
data structures
,
greedy
,
sortings
,
trees
1500
x10870
982C
Cut 'em all!
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
1500
x10901
1139C
Edgy Trees
dfs and similar
,
dsu
,
graphs
,
math
,
trees
1500
x12101
1325C
Ehab and Path-etic MEXs
constructive algorithms
,
dfs and similar
,
greedy
,
trees
1500
x13026
839C
Journey
dfs and similar
,
dp
,
graphs
,
probabilities
,
trees
1500
x16011
580C
Kefa and Park
dfs and similar
,
graphs
,
trees
1500
x40168
120F
Spiders
dp
,
greedy
,
trees
1400
x3516
802J
Send the Fool Further! (easy)
dfs and similar
,
graphs
,
trees
1400
x4320
981C
Useful Decomposition
implementation
,
trees
1400
x5194
1143C
Queen
dfs and similar
,
trees
1400
x11534
1830A
Copil Copac Draws Trees
dfs and similar
,
dp
,
graphs
,
trees
1400
x12592
1559D1
Mocha and Diana (Easy Version)
brute force
,
constructive algorithms
,
dsu
,
graphs
,
greedy
,
trees
1400
x13301
1627C
Not Assigning
constructive algorithms
,
dfs and similar
,
number theory
,
trees
1400
x14107
886C
Petya and Catacombs
dsu
,
greedy
,
implementation
,
trees
1300
x5436
429A
Xor-tree
dfs and similar
,
trees
1300
x10032
1900C
Anji's Binary Tree
dfs and similar
,
dp
,
trees
1300
x10586
755C
PolandBall and Forest
dfs and similar
,
dsu
,
graphs
,
interactive
,
trees
1300
x11754
1675D
Vertical Paths
graphs
,
implementation
,
trees
1300
x12634
1676G
White-Black Balanced Subtrees
dfs and similar
,
dp
,
graphs
,
trees
1300
x14380
1741D
Masha and a Beautiful Tree
dfs and similar
,
divide and conquer
,
graphs
,
sortings
,
trees
1300
x14587
862B
Mahmoud and Ehab and the bipartiteness
dfs and similar
,
graphs
,
trees
1300
x16168
1857D
Strong Vertices
math
,
sortings
,
trees
1300
x17953
1583B
Omkar and Heavenly Tree
constructive algorithms
,
trees
1200
x11989
913B
Christmas Spruce
implementation
,
trees
1200
x15498
522A
Reposts
*special problem
,
dfs and similar
,
dp
,
graphs
,
trees
1200
x15772
1843D
Apple Tree
combinatorics
,
dfs and similar
,
dp
,
math
,
trees
1200
x17176
1905B
Begginer's Zelda
greedy
,
trees
1100
x15427
1511C
Yet Another Card Deck
brute force
,
data structures
,
implementation
,
trees
1100
x22369
1057A
Bmail Computer Network
*special problem
,
dfs and similar
,
trees
900
x5799
115A
Party
dfs and similar
,
graphs
,
trees
900
x33024
1843C
Sum in Binary Tree
bitmasks
,
combinatorics
,
math
,
trees
800
x31356
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