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Name
959C
Mahmoud and Ehab and the wrong algorithm
constructive algorithms
,
trees
1500
x5693
958B2
Maximum Control (medium)
data structures
,
dfs and similar
,
graphs
,
greedy
,
trees
2200
x616
955F
Heaps
dp
,
trees
2600
x353
936E
Iqea
data structures
,
dfs and similar
,
divide and conquer
,
dsu
,
shortest paths
,
trees
3400
x182
935E
Fafa and Ancient Mathematics
dfs and similar
,
dp
,
trees
2300
x865
932D
Tree
binary search
,
dp
,
trees
2200
x1645
930A
Peculiar apple-tree
dfs and similar
,
graphs
,
trees
1500
x6810
928D
Autocompletion
*special problem
,
strings
,
trees
1900
x801
925E
May Holidays
data structures
,
trees
2900
x359
923F
Public Service
constructive algorithms
,
graphs
,
trees
3200
x72
923C
Perfect Security
data structures
,
greedy
,
strings
,
trees
1800
x4158
917E
Upside Down
data structures
,
string suffix structures
,
strings
,
trees
3400
x122
917D
Stranger Trees
dp
,
math
,
matrices
,
trees
2600
x1011
916E
Jamie and Tree
data structures
,
trees
2400
x1586
916D
Jamie and To-do List
data structures
,
interactive
,
trees
2200
x488
915F
Imbalance Value of a Tree
data structures
,
dsu
,
graphs
,
trees
2400
x2315
914H
Ember and Storm's Tree Game
combinatorics
,
dp
,
games
,
trees
3400
x230
914E
Palindromes in a Tree
bitmasks
,
data structures
,
divide and conquer
,
trees
2400
x1394
913B
Christmas Spruce
implementation
,
trees
1200
x15456
911F
Tree Destruction
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
trees
2400
x1566
901A
Hashing Trees
constructive algorithms
,
trees
1500
x5013
894D
Ralph And His Tour in Binary Country
brute force
,
data structures
,
trees
2200
x1106
893F
Subtree Minimum Query
data structures
,
trees
2300
x1671
891D
Sloth
dfs and similar
,
dp
,
graph matchings
,
trees
3100
x169
886C
Petya and Catacombs
dsu
,
greedy
,
implementation
,
trees
1300
x5433
877E
Danil and a Part-time Job
bitmasks
,
data structures
,
trees
2000
x4263
871E
Restore the Tree
graphs
,
greedy
,
trees
2900
x147
870E
Points, Lines and Ready-made Titles
dfs and similar
,
dsu
,
graphs
,
trees
2300
x975
868E
Policeman and a Tree
dp
,
graphs
,
trees
2700
x460
864F
Cities Excursions
dfs and similar
,
graphs
,
trees
2700
x580
862B
Mahmoud and Ehab and the bipartiteness
dfs and similar
,
graphs
,
trees
1300
x16059
860E
Arkady and a Nobody-men
data structures
,
dfs and similar
,
trees
2700
x422
859E
Desk Disorder
combinatorics
,
dfs and similar
,
dsu
,
graphs
,
trees
2100
x1648
859D
Third Month Insanity
dp
,
probabilities
,
trees
2100
x862
856D
Masha and Cactus
dp
,
trees
2400
x369
856B
Similar Words
dp
,
hashing
,
strings
,
trees
2300
x477
855G
Harry Vs Voldemort
dfs and similar
,
dp
,
graphs
,
trees
3300
x199
855D
Rowena Ravenclaw's Diadem
trees
2500
x475
855C
Helga Hufflepuff's Cup
dp
,
trees
2000
x1984
852I
Dating
brute force
,
dfs and similar
,
graphs
,
trees
2300
x556
847L
Berland SU Computer Network
constructive algorithms
,
dfs and similar
,
graphs
,
hashing
,
trees
2400
x315
846E
Chemistry in Berland
dfs and similar
,
greedy
,
trees
2300
x851
843C
Upgrading Tree
constructive algorithms
,
dfs and similar
,
graphs
,
math
,
trees
2600
x346
842E
Nikita and game
binary search
,
dfs and similar
,
divide and conquer
,
graphs
,
trees
2800
x397
842C
Ilya And The Tree
dfs and similar
,
graphs
,
math
,
number theory
,
trees
2000
x3418
840E
In a Trap
trees
3200
x433
839C
Journey
dfs and similar
,
dp
,
graphs
,
probabilities
,
trees
1500
x15951
838B
Diverging Directions
data structures
,
dfs and similar
,
trees
2100
x700
835F
Roads in the Kingdom
dfs and similar
,
dp
,
graphs
,
trees
2500
x1001
833D
Red-Black Cobweb
data structures
,
divide and conquer
,
implementation
,
trees
2800
x373
832D
Misha, Grisha and Underground
dfs and similar
,
graphs
,
trees
1900
x3619
830E
Perpetual Motion Machine
constructive algorithms
,
dp
,
graphs
,
implementation
,
math
,
trees
3100
x272
830D
Singer House
combinatorics
,
dp
,
graphs
,
trees
2800
x808
827D
Best Edge Weight
data structures
,
dfs and similar
,
graphs
,
trees
2700
x1065
827B
High Load
constructive algorithms
,
greedy
,
implementation
,
trees
1800
x3438
825G
Tree Queries
dfs and similar
,
graphs
,
trees
2500
x1146
822F
Madness
constructive algorithms
,
dfs and similar
,
trees
2500
x288
821C
Okabe and Boxes
data structures
,
greedy
,
trees
1500
x6631
817F
MEX Queries
binary search
,
data structures
,
trees
2300
x2407
817E
Choosing The Commander
bitmasks
,
data structures
,
trees
2000
x2703
815C
Karen and Supermarket
brute force
,
dp
,
trees
2400
x2470
814D
An overnight dance in discotheque
dfs and similar
,
dp
,
geometry
,
greedy
,
trees
2000
x2125
812E
Sagheer and Apple Tree
games
,
trees
2300
x1018
812D
Sagheer and Kindergarten
dfs and similar
,
graphs
,
implementation
,
trees
2700
x326
809E
Surprise me!
divide and conquer
,
math
,
number theory
,
trees
3100
x722
804D
Expected diameter of a tree
binary search
,
brute force
,
dfs and similar
,
dp
,
sortings
,
trees
2500
x1257
802L
Send the Fool Further! (hard)
dfs and similar
,
dp
,
math
,
trees
2400
x283
802K
Send the Fool Further! (medium)
dp
,
trees
2100
x580
802J
Send the Fool Further! (easy)
dfs and similar
,
graphs
,
trees
1400
x4302
796D
Police Stations
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
shortest paths
,
trees
2100
x5143
796C
Bank Hacking
constructive algorithms
,
data structures
,
dp
,
trees
1900
x2979
793E
Problem of offices
constructive algorithms
,
dfs and similar
,
dp
,
trees
2900
x241
792D
Paths in a Complete Binary Tree
bitmasks
,
trees
1900
x2905
786E
ALT
data structures
,
flows
,
graphs
,
trees
3200
x602
786D
Rap God
data structures
,
dfs and similar
,
hashing
,
strings
,
trees
3400
x136
780C
Andryusha and Colored Balloons
dfs and similar
,
graphs
,
greedy
,
trees
1600
x8862
778C
Peterson Polyglot
brute force
,
dfs and similar
,
dsu
,
hashing
,
strings
,
trees
2500
x865
776F
Sherlock's bet to Moriarty
constructive algorithms
,
data structures
,
divide and conquer
,
geometry
,
graphs
,
implementation
,
trees
2800
x415
772E
Verifying Kingdom
binary search
,
divide and conquer
,
interactive
,
trees
3200
x122
771C
Bear and Tree Jumps
dfs and similar
,
dp
,
trees
2100
x2796
767C
Garland
dfs and similar
,
graphs
,
greedy
,
trees
2000
x3984
766E
Mahmoud and a xor trip
bitmasks
,
constructive algorithms
,
data structures
,
dfs and similar
,
dp
,
math
,
trees
2100
x2849
765E
Tree Folding
dfs and similar
,
dp
,
greedy
,
implementation
,
trees
2200
x1246
763D
Timofey and a flat tree
data structures
,
graphs
,
hashing
,
shortest paths
,
trees
2900
x514
763A
Timofey and a tree
dfs and similar
,
dp
,
dsu
,
graphs
,
implementation
,
trees
1600
x10142
762F
Tree nesting
combinatorics
,
graphs
,
trees
2800
x345
761E
Dasha and Puzzle
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
trees
2000
x1904
758E
Broken Tree
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
2600
x443
757G
Can Bash Save the Day?
data structures
,
divide and conquer
,
graphs
,
trees
3400
x480
755C
PolandBall and Forest
dfs and similar
,
dsu
,
graphs
,
interactive
,
trees
1300
x11714
754E
Dasha and cyclic table
bitmasks
,
brute force
,
fft
,
strings
,
trees
2600
x481
750F
New Year and Finding Roots
constructive algorithms
,
implementation
,
interactive
,
trees
2800
x472
748F
Santa Clauses and a Soccer Championship
constructive algorithms
,
dfs and similar
,
graphs
,
trees
2300
x633
746G
New Roads
constructive algorithms
,
graphs
,
trees
2100
x1317
743D
Chloe and pleasant prizes
dfs and similar
,
dp
,
graphs
,
trees
1800
x4253
741D
Arpa’s letter-marked tree and Mehrdad’s Dokhtar-kosh paths
data structures
,
dfs and similar
,
trees
2900
x2458
739B
Alyona and a tree
binary search
,
data structures
,
dfs and similar
,
graphs
,
trees
1900
x4431
735E
Ostap and Tree
dp
,
trees
2500
x846
734E
Anton and Tree
dfs and similar
,
dp
,
trees
2100
x3737
733F
Drivers Dissatisfaction
data structures
,
dsu
,
graphs
,
trees
2200
x1089
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Codeforces Round 946 (Div. 3)
10:04:46
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data structures
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divide and conquer
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