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Name
1175E
Minimal Segment Cover
data structures
,
dfs and similar
,
divide and conquer
,
dp
,
greedy
,
implementation
,
trees
2200
x3205
1656E
Equal Tree Sums
constructive algorithms
,
dfs and similar
,
math
,
trees
2200
x3307
282E
Sausage Maximization
bitmasks
,
data structures
,
trees
2200
x3367
280C
Game on Tree
implementation
,
math
,
probabilities
,
trees
2200
x3512
587C
Duff in the Army
data structures
,
trees
2200
x3686
1156D
0-1-Tree
dfs and similar
,
divide and conquer
,
dp
,
dsu
,
trees
2200
x3698
570D
Tree Requests
binary search
,
bitmasks
,
constructive algorithms
,
dfs and similar
,
graphs
,
trees
2200
x6699
802K
Send the Fool Further! (medium)
dp
,
trees
2100
x580
838B
Diverging Directions
data structures
,
dfs and similar
,
trees
2100
x700
859D
Third Month Insanity
dp
,
probabilities
,
trees
2100
x862
1184E2
Daleks' Invasion (medium)
dfs and similar
,
graphs
,
shortest paths
,
trees
2100
x901
77C
Beavermuncher-0xFF
dfs and similar
,
dp
,
dsu
,
greedy
,
trees
2100
x977
238C
World Eater Brothers
dfs and similar
,
dp
,
greedy
,
trees
2100
x1023
1666J
Job Lookup
constructive algorithms
,
dp
,
shortest paths
,
trees
2100
x1294
260D
Black and White Tree
constructive algorithms
,
dsu
,
graphs
,
greedy
,
trees
2100
x1315
746G
New Roads
constructive algorithms
,
graphs
,
trees
2100
x1317
1387B1
Village (Minimum)
*special problem
,
dp
,
greedy
,
trees
2100
x1327
463E
Caisa and Tree
brute force
,
dfs and similar
,
math
,
number theory
,
trees
2100
x1386
231E
Cactus
data structures
,
dfs and similar
,
dp
,
graphs
,
trees
2100
x1547
276E
Little Girl and Problem on Trees
data structures
,
graphs
,
trees
2100
x1549
576B
Invariance of Tree
constructive algorithms
,
dfs and similar
,
greedy
,
trees
2100
x1573
165D
Beard Graph
data structures
,
dsu
,
trees
2100
x1589
859E
Desk Disorder
combinatorics
,
dfs and similar
,
dsu
,
graphs
,
trees
2100
x1648
1914G1
Light Bulbs (Easy Version)
brute force
,
combinatorics
,
dfs and similar
,
dp
,
dsu
,
graphs
,
math
,
trees
2100
x1679
960D
Full Binary Tree Queries
brute force
,
implementation
,
trees
2100
x1680
540E
Infinite Inversions
binary search
,
data structures
,
implementation
,
sortings
,
trees
2100
x2011
348B
Apple Tree
dfs and similar
,
number theory
,
trees
2100
x2046
466E
Information Graph
dfs and similar
,
dsu
,
graphs
,
trees
2100
x2061
1152D
Neko and Aki's Prank
dp
,
greedy
,
trees
2100
x2372
1864E
Guess Game
bitmasks
,
data structures
,
games
,
math
,
probabilities
,
sortings
,
strings
,
trees
2100
x2469
1223E
Paint the Tree
dp
,
sortings
,
trees
2100
x2522
1771D
Hossam and (sub-)palindromic tree
brute force
,
data structures
,
dfs and similar
,
dp
,
strings
,
trees
2100
x2605
1671E
Preorder
combinatorics
,
divide and conquer
,
dp
,
dsu
,
hashing
,
sortings
,
trees
2100
x2648
1296F
Berland Beauty
constructive algorithms
,
dfs and similar
,
greedy
,
sortings
,
trees
2100
x2674
1913D
Array Collapse
data structures
,
divide and conquer
,
dp
,
trees
2100
x2728
1654D
Potion Brewing Class
dfs and similar
,
math
,
number theory
,
trees
2100
x2786
771C
Bear and Tree Jumps
dfs and similar
,
dp
,
trees
2100
x2796
1605D
Treelabeling
bitmasks
,
constructive algorithms
,
dfs and similar
,
games
,
greedy
,
implementation
,
trees
2100
x2842
766E
Mahmoud and a xor trip
bitmasks
,
constructive algorithms
,
data structures
,
dfs and similar
,
dp
,
math
,
trees
2100
x2849
1547G
How Many Paths?
dfs and similar
,
dp
,
graphs
,
trees
2100
x2869
665E
Beautiful Subarrays
data structures
,
divide and conquer
,
strings
,
trees
2100
x2888
1790F
Timofey and Black-White Tree
brute force
,
dfs and similar
,
divide and conquer
,
graphs
,
greedy
,
math
,
shortest paths
,
trees
2100
x3158
1025D
Recovering BST
brute force
,
dp
,
math
,
number theory
,
trees
2100
x3300
1446C
Xor Tree
binary search
,
bitmasks
,
data structures
,
divide and conquer
,
dp
,
trees
2100
x3398
1919D
01 Tree
constructive algorithms
,
data structures
,
dsu
,
greedy
,
sortings
,
trees
2100
x3609
1278D
Segment Tree
data structures
,
dsu
,
graphs
,
trees
2100
x3732
734E
Anton and Tree
dfs and similar
,
dp
,
trees
2100
x3737
486D
Valid Sets
dfs and similar
,
dp
,
math
,
trees
2100
x3858
1555E
Boring Segments
data structures
,
sortings
,
trees
,
two pointers
2100
x3867
1000E
We Need More Bosses
dfs and similar
,
graphs
,
trees
2100
x3962
1364D
Ehab's Last Corollary
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
implementation
,
trees
2100
x4018
796D
Police Stations
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
shortest paths
,
trees
2100
x5143
455C
Civilization
dfs and similar
,
dp
,
dsu
,
ternary search
,
trees
2100
x5159
620E
New Year Tree
bitmasks
,
data structures
,
trees
2100
x5232
343D
Water Tree
data structures
,
dfs and similar
,
graphs
,
trees
2100
x5500
208E
Blood Cousins
binary search
,
data structures
,
dfs and similar
,
trees
2100
x6125
519E
A and B and Lecture Rooms
binary search
,
data structures
,
dfs and similar
,
dp
,
trees
2100
x6221
321C
Ciel the Commander
constructive algorithms
,
dfs and similar
,
divide and conquer
,
greedy
,
trees
2100
x6820
609E
Minimum spanning tree for each edge
data structures
,
dfs and similar
,
dsu
,
graphs
,
trees
2100
x6984
1187E
Tree Painting
dfs and similar
,
dp
,
trees
2100
x7497
1919H
Tree Diameter
interactive
,
trees
2000
x129
1910F
Build Railway Stations
*special problem
,
greedy
,
trees
2000
x163
237D
T-decomposition
dfs and similar
,
graphs
,
greedy
,
trees
2000
x544
374D
Inna and Sequence
binary search
,
data structures
,
dp
,
trees
2000
x844
1092E
Minimal Diameter Forest
constructive algorithms
,
dfs and similar
,
greedy
,
trees
2000
x1626
681D
Gifts by the List
constructive algorithms
,
dfs and similar
,
graphs
,
trees
2000
x1720
75D
Big Maximum Sum
data structures
,
dp
,
greedy
,
implementation
,
math
,
trees
2000
x1740
761E
Dasha and Puzzle
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
trees
2000
x1903
855C
Helga Hufflepuff's Cup
dp
,
trees
2000
x1984
814D
An overnight dance in discotheque
dfs and similar
,
dp
,
geometry
,
greedy
,
trees
2000
x2125
615C
Running Track
dp
,
greedy
,
strings
,
trees
2000
x2254
533B
Work Group
dfs and similar
,
dp
,
graphs
,
strings
,
trees
2000
x2304
29D
Ant on the Tree
constructive algorithms
,
dfs and similar
,
trees
2000
x2321
1010D
Mars rover
dfs and similar
,
graphs
,
implementation
,
trees
2000
x2354
1280C
Jeremy Bearimy
dfs and similar
,
graphs
,
greedy
,
trees
2000
x2484
1214E
Petya and Construction Set
constructive algorithms
,
graphs
,
math
,
sortings
,
trees
2000
x2511
963B
Destruction of a Tree
constructive algorithms
,
dfs and similar
,
dp
,
greedy
,
trees
2000
x2702
817E
Choosing The Commander
bitmasks
,
data structures
,
trees
2000
x2703
1142B
Lynyrd Skynyrd
data structures
,
dfs and similar
,
dp
,
math
,
trees
2000
x2787
1815B
Sum Graph
brute force
,
constructive algorithms
,
graphs
,
implementation
,
interactive
,
shortest paths
,
trees
2000
x2869
1851G
Vlad and the Mountains
binary search
,
data structures
,
dsu
,
graphs
,
implementation
,
sortings
,
trees
,
two pointers
2000
x2943
1060E
Sergey and Subway
dfs and similar
,
dp
,
trees
2000
x2985
474E
Pillars
binary search
,
data structures
,
dp
,
sortings
,
trees
2000
x3128
1682D
Circular Spanning Tree
constructive algorithms
,
implementation
,
trees
2000
x3179
1210C
Kamil and Making a Stream
math
,
number theory
,
trees
2000
x3206
1923E
Count Paths
data structures
,
dfs and similar
,
dp
,
dsu
,
graphs
,
trees
2000
x3222
1891F
A Growing Tree
data structures
,
dfs and similar
,
trees
2000
x3402
842C
Ilya And The Tree
dfs and similar
,
graphs
,
math
,
number theory
,
trees
2000
x3418
1646D
Weight the Tree
constructive algorithms
,
dfs and similar
,
dp
,
implementation
,
trees
2000
x3551
1726D
Edge Split
brute force
,
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
probabilities
,
trees
2000
x3554
1827B1
Range Sorting (Easy Version)
binary search
,
dp
,
dsu
,
greedy
,
trees
,
two pointers
2000
x3670
767C
Garland
dfs and similar
,
graphs
,
greedy
,
trees
2000
x3984
1566E
Buds Re-hanging
constructive algorithms
,
dfs and similar
,
dp
,
greedy
,
trees
2000
x4021
1857G
Counting Graphs
combinatorics
,
divide and conquer
,
dsu
,
graphs
,
greedy
,
sortings
,
trees
2000
x4099
1416C
XOR Inverse
bitmasks
,
data structures
,
divide and conquer
,
dp
,
greedy
,
math
,
sortings
,
strings
,
trees
2000
x4189
877E
Danil and a Part-time Job
bitmasks
,
data structures
,
trees
2000
x4263
1702G2
Passable Paths (hard version)
data structures
,
dfs and similar
,
trees
2000
x4349
1101D
GCD Counting
data structures
,
dfs and similar
,
dp
,
number theory
,
trees
2000
x4430
1304E
1-Trees and Queries
data structures
,
dfs and similar
,
shortest paths
,
trees
2000
x4930
461B
Appleman and Tree
dfs and similar
,
dp
,
trees
2000
x5338
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Codeforces Round 946 (Div. 3)
18:38:39
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