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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
39:05:56
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Difficulty:
—
greedy
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
1732C1
Sheikh (Easy version)
binary search
,
bitmasks
,
greedy
,
two pointers
1800
x5471
1630B
Range and Partition
binary search
,
constructive algorithms
,
data structures
,
greedy
,
two pointers
1800
x5449
1923D
Slimes
binary search
,
constructive algorithms
,
data structures
,
greedy
,
two pointers
1800
x5444
1624G
MinOr Tree
bitmasks
,
dfs and similar
,
dsu
,
graphs
,
greedy
1900
x5442
1312E
Array Shrinking
dp
,
greedy
2100
x5440
858C
Did you mean...
dp
,
greedy
,
implementation
1500
x5421
886C
Petya and Catacombs
dsu
,
greedy
,
implementation
,
trees
1300
x5419
1701D
Permutation Restoration
binary search
,
data structures
,
greedy
,
math
,
sortings
,
two pointers
1900
x5412
1718A1
Burenka and Traditions (easy version)
dp
,
greedy
1800
x5410
1015E1
Stars Drawing (Easy Edition)
brute force
,
dp
,
greedy
1700
x5394
1713D
Tournament Countdown
constructive algorithms
,
greedy
,
interactive
,
number theory
,
probabilities
1800
x5393
1904D1
Set To Max (Easy Version)
brute force
,
constructive algorithms
,
greedy
1600
x5377
732D
Exams
binary search
,
greedy
,
sortings
1700
x5376
354A
Vasya and Robot
brute force
,
greedy
,
math
1500
x5373
1379C
Choosing flowers
binary search
,
brute force
,
data structures
,
dfs and similar
,
dp
,
greedy
,
sortings
,
two pointers
2000
x5357
1799C
Double Lexicographically Minimum
greedy
,
strings
1700
x5355
552C
Vanya and Scales
brute force
,
dp
,
greedy
,
math
,
meet-in-the-middle
,
number theory
1900
x5344
215B
Olympic Medal
greedy
,
math
1300
x5321
1118D1
Coffee and Coursework (Easy version)
brute force
,
greedy
1700
x5317
1062C
Banh-mi
greedy
,
implementation
,
math
1600
x5292
1765K
Torus Path
greedy
,
math
1500
x5283
1372D
Omkar and Circle
brute force
,
dp
,
games
,
greedy
2100
x5275
734C
Anton and Making Potions
binary search
,
dp
,
greedy
,
two pointers
1600
x5272
196A
Lexicographically Maximum Subsequence
greedy
,
strings
1100
x5268
1450D
Rating Compression
binary search
,
data structures
,
greedy
,
implementation
,
two pointers
1800
x5267
186B
Growing Mushrooms
greedy
,
sortings
1200
x5251
412B
Network Configuration
greedy
,
sortings
900
x5240
1884C
Medium Design
brute force
,
data structures
,
dp
,
greedy
,
sortings
1700
x5239
1294F
Three Paths on a Tree
dfs and similar
,
dp
,
greedy
,
trees
2000
x5239
149C
Division into Teams
greedy
,
math
,
sortings
1500
x5237
1867D
Cyclic Operations
brute force
,
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
implementation
1800
x5229
1494C
1D Sokoban
binary search
,
dp
,
greedy
,
implementation
,
two pointers
1900
x5200
1583D
Omkar and the Meaning of Life
constructive algorithms
,
greedy
,
interactive
1800
x5197
383A
Milking cows
data structures
,
greedy
1600
x5183
1915G
Bicycles
graphs
,
greedy
,
implementation
,
shortest paths
,
sortings
1800
x5173
1009C
Annoying Present
greedy
,
math
1700
x5173
949A
Zebras
greedy
1600
x5166
1582F1
Korney Korneevich and XOR (easy version)
bitmasks
,
dp
,
greedy
1800
x5156
1851F
Lisa and the Martians
bitmasks
,
greedy
,
math
,
strings
,
trees
1800
x5141
1696D
Permutation Graph
binary search
,
constructive algorithms
,
data structures
,
divide and conquer
,
greedy
,
shortest paths
1900
x5113
1367E
Necklace Assembly
brute force
,
dfs and similar
,
dp
,
graphs
,
greedy
,
number theory
1900
x5105
1176D
Recover it!
dfs and similar
,
graphs
,
greedy
,
number theory
,
sortings
1800
x5102
578B
"Or" Game
brute force
,
greedy
1700
x5102
1031C
Cram Time
greedy
1600
x5099
27B
Tournament
bitmasks
,
brute force
,
dfs and similar
,
greedy
1300
x5093
261A
Maxim and Discounts
greedy
,
sortings
1400
x5072
1197D
Yet Another Subarray Problem
dp
,
greedy
,
math
1900
x5060
924B
Three-level Laser
binary search
,
greedy
,
two pointers
1600
x5028
23A
You're Given a String...
brute force
,
greedy
1200
x5027
1400E
Clear the Multiset
data structures
,
divide and conquer
,
dp
,
greedy
2200
x4964
746D
Green and Black Tea
constructive algorithms
,
greedy
,
math
1500
x4960
1513D
GCD and MST
constructive algorithms
,
dsu
,
graphs
,
greedy
,
number theory
,
sortings
2000
x4952
1254A
Feeding Chicken
constructive algorithms
,
greedy
,
implementation
1700
x4944
1439A2
Binary Table (Hard Version)
constructive algorithms
,
graphs
,
greedy
,
implementation
1900
x4928
845B
Luba And The Ticket
brute force
,
greedy
,
implementation
1600
x4920
1675F
Vlad and Unfinished Business
dfs and similar
,
dp
,
greedy
,
trees
1800
x4919
1718A2
Burenka and Traditions (hard version)
data structures
,
dp
,
greedy
1900
x4916
1670D
Very Suspicious
binary search
,
brute force
,
geometry
,
greedy
,
implementation
,
math
1700
x4914
1537E2
Erase and Extend (Hard Version)
binary search
,
data structures
,
greedy
,
hashing
,
string suffix structures
,
strings
,
two pointers
2200
x4914
924A
Mystical Mosaic
greedy
,
implementation
1300
x4901
777D
Cloud of Hashtags
binary search
,
greedy
,
implementation
,
strings
1800
x4897
1391D
505
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
greedy
,
implementation
2000
x4893
803C
Maximal GCD
constructive algorithms
,
greedy
,
math
1900
x4883
1903D1
Maximum And Queries (easy version)
binary search
,
bitmasks
,
brute force
,
greedy
1700
x4871
1843F1
Omsk Metro (simple version)
data structures
,
dfs and similar
,
dp
,
graphs
,
greedy
,
math
,
trees
1800
x4864
1310A
Recommendations
data structures
,
greedy
,
sortings
1700
x4863
274B
Zero Tree
dfs and similar
,
dp
,
greedy
,
trees
1800
x4859
214B
Hometask
brute force
,
constructive algorithms
,
greedy
,
math
1600
x4856
1715D
2+ doors
2-sat
,
bitmasks
,
graphs
,
greedy
1900
x4852
1076D
Edge Deletion
graphs
,
greedy
,
shortest paths
1800
x4852
1070D
Garbage Disposal
greedy
1300
x4839
442B
Andrey and Problem
greedy
,
math
,
probabilities
1800
x4835
1249D2
Too Many Segments (hard version)
data structures
,
greedy
,
sortings
1800
x4825
1674F
Desktop Rearrangement
data structures
,
greedy
,
implementation
1800
x4801
1148D
Dirty Deeds Done Dirt Cheap
greedy
,
sortings
1800
x4796
1833G
Ksyusha and Chinchilla
constructive algorithms
,
dfs and similar
,
dp
,
dsu
,
greedy
,
implementation
,
trees
1800
x4794
1739D
Reset K Edges
binary search
,
data structures
,
dfs and similar
,
graphs
,
greedy
,
trees
1900
x4785
1343E
Weights Distributing
brute force
,
graphs
,
greedy
,
shortest paths
,
sortings
2100
x4782
1249D1
Too Many Segments (easy version)
greedy
1800
x4776
337C
Quiz
binary search
,
greedy
,
math
,
matrices
,
number theory
1600
x4753
1882D
Tree XOR
bitmasks
,
dfs and similar
,
dp
,
greedy
,
trees
1900
x4751
1244E
Minimizing Difference
binary search
,
constructive algorithms
,
greedy
,
sortings
,
ternary search
,
two pointers
2000
x4733
1883G2
Dances (Hard Version)
binary search
,
greedy
,
sortings
,
two pointers
1900
x4727
1383B
GameGame
bitmasks
,
constructive algorithms
,
dp
,
games
,
greedy
,
math
1900
x4723
1119E
Pavel and Triangles
brute force
,
dp
,
fft
,
greedy
,
ternary search
1900
x4706
479D
Long Jumps
binary search
,
greedy
,
implementation
1700
x4699
709B
Checkpoints
greedy
,
implementation
,
sortings
1500
x4692
1172A
Nauuo and Cards
greedy
,
implementation
1800
x4691
1355E
Restorer Distance
binary search
,
greedy
,
math
,
sortings
,
ternary search
2100
x4680
92B
Binary Number
greedy
1300
x4672
1153D
Serval and Rooted Tree
binary search
,
dfs and similar
,
dp
,
greedy
,
trees
1900
x4669
1657D
For Gamers. By Gamers.
binary search
,
brute force
,
greedy
,
math
,
sortings
2000
x4666
1821D
Black Cells
binary search
,
brute force
,
greedy
,
math
1900
x4665
1616D
Keep the Average High
dp
,
greedy
,
math
2000
x4662
161A
Dress'em in Vests!
binary search
,
brute force
,
greedy
,
two pointers
1300
x4659
865D
Buy Low Sell High
constructive algorithms
,
data structures
,
greedy
2400
x4632
1208D
Restore Permutation
binary search
,
data structures
,
greedy
,
implementation
1900
x4631
1941F
Rudolf and Imbalance
binary search
,
greedy
,
sortings
,
two pointers
1800
x4629
1294E
Obtain a Permutation
greedy
,
implementation
,
math
1900
x4621
1042C
Array Product
constructive algorithms
,
greedy
,
math
1700
x4616
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