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Rayan
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Before contest
Codeforces Round 1006 (Div. 3)
29:01:01
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combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
chinese remainder theorem
combinatorics
constructive algorithms
data structures
dfs and similar
divide and conquer
dp
dsu
expression parsing
fft
flows
games
geometry
graph matchings
graphs
greedy
hashing
implementation
interactive
math
matrices
meet-in-the-middle
number theory
probabilities
schedules
shortest paths
sortings
string suffix structures
strings
ternary search
trees
two pointers
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Problems
#
Name
612A
The Text Splitting
brute force
,
implementation
,
strings
1300
x7382
611H
New Year and Forgotten Tree
constructive algorithms
,
flows
,
graphs
3200
x593
611G
New Year and Cake
geometry
,
two pointers
2900
x446
611F
New Year and Cleaning
binary search
,
implementation
2500
x489
611E
New Year and Three Musketeers
data structures
,
greedy
,
sortings
2400
x873
611D
New Year and Ancient Prophecy
dp
,
hashing
,
strings
2000
x2626
611C
New Year and Domino
dp
,
implementation
1500
x8568
611B
New Year and Old Property
bitmasks
,
brute force
,
implementation
1300
x10333
611A
New Year and Days
implementation
900
x11737
610E
Alphabet Permutations
data structures
,
strings
2500
x924
610D
Vika and Segments
constructive algorithms
,
data structures
,
geometry
,
two pointers
2300
x1544
610C
Harmony Analysis
constructive algorithms
1800
x2898
610B
Vika and Squares
constructive algorithms
,
implementation
1300
x7474
610A
Pasha and Stick
combinatorics
,
math
1000
x24276
609F
Frogs and mosquitoes
data structures
,
greedy
2500
x1306
609E
Minimum spanning tree for each edge
data structures
,
dfs and similar
,
dsu
,
graphs
,
trees
2100
x8408
609D
Gadgets for dollars and pounds
binary search
,
greedy
,
two pointers
2000
x2821
609C
Load Balancing
implementation
,
math
1500
x6761
609B
The Best Gift
constructive algorithms
,
implementation
1100
x9345
609A
USB Flash Drives
greedy
,
implementation
,
sortings
800
x17907
608B
Hamming Distance Sum
combinatorics
,
strings
1500
x6995
608A
Saitama Destroys Hotel
implementation
,
math
1000
x9477
607E
Cross Sum
binary search
,
geometry
3300
x264
607D
Power Tree
data structures
,
trees
2600
x585
607C
Marbles
hashing
,
strings
2500
x814
607B
Zuma
dp
1900
x12958
607A
Chain Reaction
binary search
,
dp
1600
x9780
606B
Testing Robots
implementation
1600
x2781
606A
Magic Spheres
implementation
1200
x8050
605E
Intergalaxy Trips
probabilities
,
shortest paths
2700
x1415
605D
Board Game
data structures
,
dfs and similar
2500
x819
605C
Freelancer's Dreams
geometry
2400
x1138
605B
Lazy Student
constructive algorithms
,
data structures
,
graphs
1700
x3545
605A
Sorting Railway Cars
constructive algorithms
,
greedy
1600
x7230
604B
More Cowbell
binary search
,
greedy
1400
x8610
604A
Uncowed Forces
implementation
1000
x9060
603E
Pastoral Oddities
data structures
,
divide and conquer
,
dsu
,
math
,
trees
3000
x1363
603D
Ruminations on Ruminants
geometry
,
math
2900
x345
603C
Lieges of Legendre
games
,
math
2200
x1933
603B
Moodular Arithmetic
combinatorics
,
dfs and similar
,
dsu
,
math
,
number theory
1800
x2610
603A
Alternative Thinking
dp
,
greedy
,
math
1600
x7772
602B
Approximating a Constant Range
dp
,
implementation
,
two pointers
1400
x11127
602A
Two Bases
brute force
,
implementation
1100
x8580
601E
A Museum Robbery
data structures
,
dp
2800
x896
601D
Acyclic Organic Compounds
data structures
,
dfs and similar
,
dsu
,
hashing
,
strings
,
trees
2400
x1179
601C
Kleofáš and the n-thlon
dp
,
math
,
probabilities
2300
x1351
601B
Lipshitz Sequence
data structures
,
math
2100
x2340
601A
The Two Routes
graphs
,
shortest paths
1600
x12429
600F
Edge coloring of bipartite graph
graphs
2800
x888
600E
Lomsat gelral
data structures
,
dfs and similar
,
dsu
,
trees
2300
x14803
600D
Area of Two Circles' Intersection
geometry
2000
x2375
600C
Make Palindrome
constructive algorithms
,
greedy
,
strings
1800
x6404
600B
Queries about less or equal elements
binary search
,
data structures
,
sortings
,
two pointers
1300
x31799
600A
Extract Numbers
implementation
,
strings
1600
x5405
599E
Sandy and Nuts
bitmasks
,
dp
,
trees
2600
x688
599D
Spongebob and Squares
brute force
,
math
1900
x2605
599C
Day at the Beach
sortings
1600
x4709
599B
Spongebob and Joke
implementation
1500
x4425
599A
Patrick and Shopping
implementation
800
x29592
598F
Cut Length
geometry
2900
x387
598E
Chocolate Bar
brute force
,
dp
2000
x5239
598D
Igor In the Museum
dfs and similar
,
graphs
,
shortest paths
1700
x11562
598C
Nearest vectors
geometry
,
sortings
2300
x4603
598B
Queries on a String
implementation
,
strings
1300
x11407
598A
Tricky Sum
math
900
x27682
597C
Subsequences
data structures
,
dp
1900
x5366
597B
Restaurant
dp
,
greedy
,
sortings
1600
x5049
597A
Divisibility
math
1600
x4602
596E
Wilbur and Strings
dfs and similar
,
dp
,
graphs
,
strings
2500
x401
596D
Wilbur and Trees
dp
,
math
,
probabilities
,
sortings
2300
x695
596C
Wilbur and Points
combinatorics
,
greedy
,
sortings
1700
x2265
596B
Wilbur and Array
greedy
,
implementation
1100
x10550
596A
Wilbur and Swimming Pool
geometry
,
implementation
1100
x7799
595B
Pasha and Phone
binary search
,
math
1600
x2937
595A
Vitaly and Night
constructive algorithms
,
implementation
800
x14744
594E
Cutting the Line
string suffix structures
,
strings
3100
x167
594D
REQ
data structures
,
number theory
2500
x1703
594C
Edo and Magnets
brute force
,
greedy
,
implementation
,
two pointers
2300
x696
594B
Max and Bike
binary search
,
geometry
2500
x507
594A
Warrior and Archer
games
2300
x1751
593E
Strange Calculation and Cats
dp
,
matrices
2400
x655
593D
Happy Tree Party
data structures
,
dfs and similar
,
graphs
,
math
,
trees
2400
x1286
593C
Beautiful Function
constructive algorithms
,
math
2200
x287
593B
Anton and Lines
geometry
,
sortings
1600
x4074
593A
2Char
brute force
,
implementation
1200
x5845
592E
BCPC
binary search
,
geometry
,
two pointers
2700
x226
592D
Super M
dfs and similar
,
dp
,
graphs
,
trees
2200
x2705
592C
The Big Race
math
1800
x3093
592B
The Monster and the Squirrel
math
1100
x8661
592A
PawnChess
implementation
1200
x6383
591B
Rebranding
implementation
,
strings
1200
x8333
591A
Wizards' Duel
implementation
,
math
900
x14819
590E
Birthday
graph matchings
,
strings
3200
x801
590D
Top Secret Task
dp
2300
x1250
590C
Three States
dfs and similar
,
graphs
,
shortest paths
2200
x2925
590B
Chip 'n Dale Rescue Rangers
binary search
,
geometry
,
math
2100
x1923
590A
Median Smoothing
implementation
1700
x3991
588B
Duff in Love
math
1300
x14340
588A
Duff and Meat
greedy
900
x23210
587F
Duff is Mad
data structures
,
strings
3000
x1106
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