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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
31:34:30
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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
1933E
Turtle vs. Rabbit Race: Optimal Trainings
binary search
,
implementation
,
math
,
ternary search
1500
x8947
1926E
Vlad and an Odd Ordering
binary search
,
bitmasks
,
data structures
,
dp
,
implementation
,
math
,
number theory
1500
x9199
1924A
Did We Get Everything Covered?
constructive algorithms
,
dp
,
greedy
,
shortest paths
,
strings
1500
x11819
1915F
Greetings
data structures
,
divide and conquer
,
sortings
1500
x11013
1898B
Milena and Admirer
greedy
,
math
1500
x10089
1891C
Smilo and Monsters
binary search
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
1500
x10804
1883D
In Love
data structures
,
greedy
1500
x9563
1882C
Card Game
brute force
,
greedy
1500
x10983
1881E
Block Sequence
dp
1500
x11102
1876B
Effects of Anti Pimples
combinatorics
,
number theory
,
sortings
1500
x7261
1873G
ABBC or BACB
constructive algorithms
,
greedy
1500
x11307
1872E
Data Structures Fan
binary search
,
bitmasks
,
data structures
,
dp
1500
x11496
1858B
The Walkway
brute force
,
dp
,
greedy
,
math
,
number theory
1500
x10421
1857E
Power of Points
math
,
sortings
1500
x11266
1851E
Nastya and Potions
dfs and similar
,
dp
,
graphs
,
sortings
1500
x9186
1850G
The Morning Star
combinatorics
,
data structures
,
geometry
,
implementation
,
math
,
sortings
1500
x10930
1842C
Tenzing and Balls
dp
1500
x11273
1817A
Almost Increasing Subsequence
binary search
,
data structures
,
greedy
1500
x10136
1814C
Search in Parallel
constructive algorithms
,
greedy
,
sortings
1500
x9972
1811E
Living Sequence
binary search
,
dp
,
math
,
number theory
1500
x11305
1809C
Sum on Subarrays
constructive algorithms
,
greedy
,
math
1500
x11695
1804C
Pull Your Luck
brute force
,
greedy
,
math
,
number theory
1500
x11331
1800E2
Unforgivable Curse (hard version)
brute force
,
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
strings
1500
x11810
1795C
Tea Tasting
binary search
,
data structures
,
implementation
1500
x11083
1792C
Min Max Sort
binary search
,
brute force
,
greedy
,
math
,
two pointers
1500
x12946
1791F
Range Update Point Query
binary search
,
brute force
,
data structures
1500
x11217
1789C
Serval and Toxel's Arrays
combinatorics
,
dp
,
implementation
,
math
1500
x7928
1776L
Controllers
binary search
,
math
1500
x4964
1774B
Coloring
constructive algorithms
,
greedy
,
math
1500
x11389
1767D
Playoff
combinatorics
,
constructive algorithms
,
dp
,
greedy
,
math
1500
x9274
1765N
Number Reduction
greedy
1500
x4347
1765K
Torus Path
greedy
,
math
1500
x5285
1760F
Quests
binary search
,
greedy
,
sortings
1500
x11034
1759E
The Humanoid
brute force
,
dp
,
sortings
1500
x9708
1753A2
Make Nonzero Sum (hard version)
constructive algorithms
,
dp
,
greedy
1500
x9645
1744E1
Divisible Numbers (easy version)
brute force
,
math
,
number theory
1500
x9997
1742G
Orray
bitmasks
,
brute force
,
greedy
,
math
,
sortings
1500
x9565
1742F
Smaller
constructive algorithms
,
greedy
,
strings
1500
x10569
1740D
Knowledge Cards
constructive algorithms
,
data structures
1500
x7595
1739C
Card Game
combinatorics
,
constructive algorithms
,
dp
,
games
1500
x8597
1738C
Even Number Addicts
dp
,
games
,
greedy
,
math
1500
x10343
1737C
Ela and Crickets
constructive algorithms
,
games
,
implementation
,
math
1500
x5496
1732D1
Balance (Easy version)
brute force
,
data structures
,
implementation
,
number theory
1500
x8107
1725G
Garage
binary search
,
geometry
,
math
1500
x5519
1722G
Even-Odd XOR
bitmasks
,
constructive algorithms
,
greedy
1500
x10070
1710A
Color the Picture
constructive algorithms
,
greedy
,
math
1500
x10516
1690E
Price Maximization
binary search
,
greedy
,
math
,
two pointers
1500
x14292
1676H2
Maximum Crossings (Hard Version)
data structures
,
divide and conquer
,
sortings
1500
x9854
1675E
Replace With the Previous, Minimize
dsu
,
greedy
,
strings
1500
x9945
1673C
Palindrome Basis
brute force
,
dp
,
math
,
number theory
1500
x11451
1659C
Line Empire
binary search
,
brute force
,
dp
,
greedy
,
implementation
,
math
1500
x9436
1651C
Fault-tolerant Network
brute force
,
data structures
,
implementation
1500
x10373
1646C
Factorials and Powers of Two
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
math
1500
x12910
1630A
And Matching
bitmasks
,
constructive algorithms
1500
x13955
1621B
Integers Shop
data structures
,
greedy
,
implementation
1500
x12987
1616C
Representative Edges
brute force
,
geometry
,
implementation
,
math
1500
x11881
1614C
Divan and bitwise operations
bitmasks
,
combinatorics
,
constructive algorithms
,
dp
,
math
1500
x9841
1611D
Weights Assignment For Tree Edges
constructive algorithms
,
trees
1500
x9406
1579C
Ticks
greedy
,
implementation
1500
x10197
1575J
Jeopardy of Dropped Balls
binary search
,
brute force
,
dsu
,
implementation
1500
x3592
1569C
Jury Meeting
combinatorics
,
math
1500
x11504
1562C
Rings
constructive algorithms
,
math
1500
x12828
1553D
Backspace
dp
,
greedy
,
strings
,
two pointers
1500
x13206
1552B
Running for Gold
combinatorics
,
graphs
,
greedy
,
sortings
1500
x14866
1551C
Interesting Story
greedy
,
sortings
,
strings
1500
x12774
1547E
Air Conditioners
data structures
,
dp
,
implementation
,
shortest paths
,
sortings
,
two pointers
1500
x13654
1545A
AquaMoon and Strange Sort
sortings
1500
x13475
1542B
Plus and Multiply
constructive algorithms
,
math
,
number theory
1500
x21758
1538F
Interesting Function
binary search
,
dp
,
math
,
number theory
1500
x18091
1536C
Diluc and Kaeya
data structures
,
dp
,
hashing
,
number theory
1500
x13437
1526C1
Potions (Easy Version)
brute force
,
data structures
,
dp
,
greedy
1500
x20877
1516B
AGAGA XOOORRR
bitmasks
,
brute force
,
dp
,
greedy
1500
x17816
1515D
Phoenix and Socks
greedy
,
sortings
,
two pointers
1500
x11085
1506E
Restoring the Permutation
constructive algorithms
,
implementation
1500
x12497
1499C
Minimum Grid Path
brute force
,
data structures
,
greedy
,
math
1500
x12269
1492C
Maximum width
binary search
,
data structures
,
dp
,
greedy
,
two pointers
1500
x15454
1490F
Equalize the Array
binary search
,
data structures
,
greedy
,
math
,
sortings
1500
x15252
1487D
Pythagorean Triples
binary search
,
brute force
,
math
,
number theory
1500
x16749
1487C
Minimum Ties
brute force
,
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
implementation
,
math
1500
x13598
1486B
Eastern Exhibition
binary search
,
geometry
,
shortest paths
,
sortings
1500
x15047
1482B
Restore Modulo
implementation
,
math
1500
x9009
1473C
No More Inversions
constructive algorithms
,
math
1500
x12294
1466D
13th Labour of Heracles
data structures
,
greedy
,
sortings
,
trees
1500
x10677
1462E1
Close Tuples (easy version)
binary search
,
combinatorics
,
math
,
sortings
,
two pointers
1500
x13069
1461C
Random Events
dp
,
math
,
probabilities
1500
x10790
1444A
Division
brute force
,
math
,
number theory
1500
x12460
1439A1
Binary Table (Easy Version)
constructive algorithms
,
implementation
1500
x9120
1436C
Binary Search
binary search
,
combinatorics
1500
x10473
1431D
Used Markers
*special problem
,
greedy
1500
x444
1426D
Non-zero Segments
constructive algorithms
,
data structures
,
greedy
,
sortings
1500
x15341
1419D2
Sage's Birthday (hard version)
binary search
,
brute force
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
1500
x14522
1419C
Killjoy
greedy
,
implementation
,
math
1500
x14801
1418C
Mortal Kombat Tower
dp
,
graphs
,
greedy
,
shortest paths
1500
x17767
1416A
k-Amazing Numbers
binary search
,
data structures
,
implementation
,
two pointers
1500
x11536
1409D
Decrease the Sum of Digits
greedy
,
math
1500
x18502
1408C
Discrete Acceleration
binary search
,
dp
,
implementation
,
math
,
two pointers
1500
x8578
1404A
Balanced Bitstring
implementation
,
strings
1500
x14604
1400C
Binary String Reconstruction
2-sat
,
brute force
,
constructive algorithms
,
greedy
1500
x16638
1399D
Binary String To Subsequences
constructive algorithms
,
data structures
,
greedy
,
implementation
1500
x17513
1397B
Power Sequence
brute force
,
math
,
number theory
,
sortings
1500
x14266
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