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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
36:55:59
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→ Filter Problems
Difficulty:
—
dp
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
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Status
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Custom test
Problems
#
Name
1363E
Tree Shuffling
dfs and similar
,
dp
,
greedy
,
trees
2000
x6441
1360F
Spy-string
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
hashing
,
strings
1700
x11740
1360E
Polygon
dp
,
graphs
,
implementation
,
shortest paths
1300
x24231
1359D
Yet Another Yet Another Task
data structures
,
dp
,
implementation
,
two pointers
2000
x8866
1359B
New Theatre Square
brute force
,
dp
,
greedy
,
implementation
,
two pointers
1000
x26927
1355B
Young Explorers
dp
,
greedy
,
sortings
1200
x24711
1354F
Summoning Minions
constructive algorithms
,
dp
,
flows
,
graph matchings
,
greedy
,
sortings
2500
x969
1354E
Graph Coloring
dfs and similar
,
dp
,
graphs
2100
x3047
1354B
Ternary String
binary search
,
dp
,
implementation
,
two pointers
1200
x28806
1353F
Decreasing Heights
brute force
,
dp
2200
x3034
1353E
K-periodic Garland
brute force
,
dp
,
greedy
1900
x6731
1350B
Orac and Models
dp
,
math
,
number theory
1400
x20234
1349F2
Slime and Sequences (Hard Version)
dp
,
fft
,
math
3500
x106
1349F1
Slime and Sequences (Easy Version)
dp
,
fft
,
math
3100
x390
1349E
Slime and Hats
constructive algorithms
,
dp
,
greedy
3500
x80
1348E
Phoenix and Berries
brute force
,
dp
,
greedy
,
math
2400
x1968
1346I
Pac-Man 2.0
*special problem
,
dp
2900
x43
1346E
Magic Tricks
*special problem
,
dp
,
graphs
1700
x367
1345B
Card Constructions
binary search
,
brute force
,
dp
,
math
1100
x25329
1344C
Quantifier Question
dfs and similar
,
dp
,
graphs
,
math
2600
x1633
1343C
Alternating Subsequence
dp
,
greedy
,
two pointers
1200
x35984
1342F
Make It Ascending
bitmasks
,
brute force
,
dp
3000
x654
1340C
Nastya and Unexpected Guest
dfs and similar
,
dp
,
graphs
,
shortest paths
2400
x2005
1340B
Nastya and Scoreboard
bitmasks
,
dp
,
graphs
,
greedy
1700
x7551
1339A
Filling Diamonds
brute force
,
dp
,
implementation
,
math
900
x30851
1338D
Nested Rubber Bands
constructive algorithms
,
dfs and similar
,
dp
,
math
,
trees
2700
x790
1336C
Kaavi and Magic Spell
dp
,
strings
2200
x3294
1336A
Linova and Kingdom
dfs and similar
,
dp
,
greedy
,
sortings
,
trees
1600
x19041
1335E2
Three Blocks Palindrome (hard version)
brute force
,
data structures
,
dp
,
two pointers
1800
x7905
1335E1
Three Blocks Palindrome (easy version)
binary search
,
brute force
,
data structures
,
dp
,
two pointers
1700
x10349
1334F
Strange Function
binary search
,
data structures
,
dp
,
greedy
2500
x1050
1332F
Independent Set
dfs and similar
,
dp
,
trees
2500
x971
1331F
Elementary!
*special problem
,
brute force
,
dp
,
strings
x551
1328D
Carousel
constructive algorithms
,
dp
,
graphs
,
greedy
,
math
1800
x12397
1327G
Letters and Question Marks
bitmasks
,
dp
,
string suffix structures
2800
x397
1327F
AND Segments
bitmasks
,
combinatorics
,
data structures
,
dp
,
two pointers
2500
x1594
1327E
Count The Blocks
combinatorics
,
dp
,
math
1800
x8450
1326G
Spiderweb Trees
dp
,
geometry
,
trees
3500
x69
1326F2
Wise Men (Hard Version)
bitmasks
,
dp
,
math
3200
x453
1326F1
Wise Men (Easy Version)
bitmasks
,
brute force
,
dp
,
meet-in-the-middle
2600
x801
1324F
Maximum White Subtree
dfs and similar
,
dp
,
graphs
,
trees
1800
x8861
1324E
Sleeping Schedule
dp
,
implementation
1700
x12258
1323A
Even Subset Sum Problem
brute force
,
dp
,
greedy
,
implementation
800
x19243
1322F
Assigning Fares
dp
,
trees
3500
x87
1322D
Reality Show
bitmasks
,
dp
2800
x684
1320E
Treeland and Viruses
data structures
,
dfs and similar
,
dp
,
shortest paths
,
trees
3000
x611
1320A
Journey Planning
data structures
,
dp
,
greedy
,
math
,
sortings
1400
x15201
1316E
Team Building
bitmasks
,
dp
,
greedy
,
sortings
2300
x3351
1315B
Homecoming
binary search
,
dp
,
greedy
,
strings
1300
x8882
1313D
Happy New Year
bitmasks
,
dp
,
implementation
2500
x1093
1313C2
Skyscrapers (hard version)
data structures
,
dp
,
greedy
1900
x6062
1313C1
Skyscrapers (easy version)
brute force
,
data structures
,
dp
,
greedy
1500
x9972
1312G
Autocompletion
data structures
,
dfs and similar
,
dp
2600
x741
1312E
Array Shrinking
dp
,
greedy
2100
x5440
1310E
Strange Function
dp
2900
x261
1310D
Tourism
dp
,
graphs
,
probabilities
2300
x1272
1310C
Au Pont Rouge
binary search
,
dp
,
strings
2800
x459
1310B
Double Elimination
dp
,
implementation
2500
x486
1307E
Cow and Treats
binary search
,
combinatorics
,
dp
,
greedy
,
implementation
,
math
2500
x1068
1307C
Cow and Message
brute force
,
dp
,
math
,
strings
1500
x11454
1305G
Kuroni and Antihype
bitmasks
,
brute force
,
dp
,
dsu
,
graphs
3500
x924
1304F2
Animal Observation (hard version)
data structures
,
dp
,
greedy
2400
x1269
1304F1
Animal Observation (easy version)
data structures
,
dp
2300
x1515
1304C
Air Conditioner
dp
,
greedy
,
implementation
,
sortings
,
two pointers
1500
x15432
1303E
Erase Subsequences
dp
,
strings
2200
x2510
1301E
Nanosoft
binary search
,
data structures
,
dp
,
implementation
2500
x1189
1299D
Around the World
bitmasks
,
combinatorics
,
dfs and similar
,
dp
,
graphs
,
graphs
,
math
,
trees
3000
x407
1297H
Paint the String
*special problem
,
dp
,
strings
x40
1297G
M-numbers
*special problem
,
dp
,
math
x64
1296E2
String Coloring (hard version)
data structures
,
dp
2000
x4659
1296E1
String Coloring (easy version)
constructive algorithms
,
dp
,
graphs
,
greedy
,
sortings
1800
x6998
1295F
Good Contest
combinatorics
,
dp
,
probabilities
2700
x950
1295C
Obtain The String
dp
,
greedy
,
strings
1600
x12450
1294F
Three Paths on a Tree
dfs and similar
,
dp
,
greedy
,
trees
2000
x5239
1292F
Nora's Toy Boxes
bitmasks
,
combinatorics
,
dp
3500
x288
1292D
Chaotic V.
dp
,
graphs
,
greedy
,
math
,
number theory
,
trees
2700
x768
1292C
Xenon's Attack on the Gangs
combinatorics
,
dfs and similar
,
dp
,
greedy
,
trees
2300
x1821
1290F
Making Shapes
dp
3500
x349
1288D
Minimax Problem
binary search
,
bitmasks
,
dp
2000
x6552
1288C
Two Arrays
combinatorics
,
dp
1600
x12127
1286F
Harry The Potter
brute force
,
constructive algorithms
,
dp
,
fft
,
implementation
,
math
3100
x228
1286A
Garland
dp
,
greedy
,
sortings
1800
x8283
1285E
Delete a Segment
brute force
,
constructive algorithms
,
data structures
,
dp
,
graphs
,
sortings
,
trees
,
two pointers
2300
x1603
1285D
Dr. Evil Underscores
bitmasks
,
brute force
,
dfs and similar
,
divide and conquer
,
dp
,
greedy
,
strings
,
trees
1900
x7225
1285B
Just Eat It!
dp
,
greedy
,
implementation
1300
x20564
1284B
New Year and Ascent Sequence
binary search
,
combinatorics
,
data structures
,
dp
,
implementation
,
sortings
1400
x10502
1283E
New Year Parties
dp
,
greedy
1800
x6176
1282B2
K for the Price of One (Hard Version)
dp
,
greedy
,
sortings
1600
x9725
1282B1
K for the Price of One (Easy Version)
dp
,
greedy
,
sortings
1400
x11083
1280D
Miss Punyverse
dp
,
greedy
,
trees
2500
x911
1279F
New Year and Handle Change
binary search
,
dp
2800
x823
1279E
New Year Permutations
combinatorics
,
dp
2700
x348
1278F
Cards
combinatorics
,
dp
,
math
,
number theory
,
probabilities
2600
x1663
1278C
Berry Jam
data structures
,
dp
,
greedy
,
implementation
1700
x7526
1276D
Tree Elimination
dp
,
trees
2900
x475
1276A
As Simple as One and Two
dp
,
greedy
1400
x11938
1272F
Two Bracket Sequences
dp
,
strings
,
two pointers
2200
x1670
1272D
Remove One Element
brute force
,
dp
1500
x15588
1272C
Yet Another Broken Keyboard
combinatorics
,
dp
,
implementation
1200
x24705
1271E
Common Number
binary search
,
combinatorics
,
dp
,
math
2100
x3101
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