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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
26:27:37
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Difficulty:
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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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Status
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Custom test
Problems
#
Name
1794B
Not Dividing
constructive algorithms
,
greedy
,
math
900
x18761
701A
Cards
greedy
,
implementation
800
x18759
1944A
Destroying Bridges
graphs
,
greedy
,
math
800
x18757
1811C
Restore the Array
constructive algorithms
,
greedy
1100
x18632
1437B
Reverse Binary Strings
constructive algorithms
,
greedy
1200
x18582
1463B
Find The Array
bitmasks
,
constructive algorithms
,
greedy
1400
x18575
1167A
Telephone Number
brute force
,
greedy
,
strings
800
x18552
1660C
Get an Even String
dp
,
greedy
,
strings
1300
x18550
1409D
Decrease the Sum of Digits
greedy
,
math
1500
x18503
1743C
Save the Magazines
constructive algorithms
,
dp
,
greedy
1100
x18464
1762A
Divide and Conquer
greedy
,
math
,
number theory
800
x18449
3A
Shortest path of the king
greedy
,
shortest paths
1000
x18415
1754B
Kevin and Permutation
constructive algorithms
,
greedy
,
math
800
x18400
1729D
Friends and the Restaurant
greedy
,
sortings
,
two pointers
1200
x18385
1461A
String Generation
constructive algorithms
,
greedy
800
x18369
1694B
Paranoid String
constructive algorithms
,
greedy
1200
x18362
1654A
Maximum Cake Tastiness
brute force
,
greedy
,
implementation
,
sortings
800
x18356
1384A
Common Prefixes
constructive algorithms
,
greedy
,
strings
1200
x18318
1665B
Array Cloning Technique
constructive algorithms
,
greedy
,
sortings
900
x18290
1870A
MEXanized Array
constructive algorithms
,
greedy
,
math
800
x18287
1392C
Omkar and Waterslide
greedy
,
implementation
1200
x18234
1497B
M-arrays
constructive algorithms
,
greedy
,
math
1200
x18230
1230B
Ania and Minimizing
greedy
,
implementation
1000
x18225
1389C
Good String
brute force
,
dp
,
greedy
,
two pointers
1500
x18217
1327B
Princesses and Princes
brute force
,
graphs
,
greedy
1200
x18209
1037C
Equalize
dp
,
greedy
,
strings
1300
x18208
1775A2
Gardener and the Capybaras (hard version)
constructive algorithms
,
greedy
900
x18173
1114A
Got Any Grapes?
brute force
,
greedy
,
implementation
800
x18170
1364B
Most socially-distanced subsequence
greedy
,
two pointers
1300
x18168
1077B
Disturbed People
greedy
1000
x18158
1490E
Accidental Victory
binary search
,
data structures
,
greedy
1400
x18157
1661A
Array Balancing
greedy
,
math
800
x18150
1673A
Subtle Substring Subtraction
games
,
greedy
,
strings
800
x18147
1096A
Find Divisible
greedy
,
implementation
,
math
800
x18140
1438B
Valerii Against Everyone
constructive algorithms
,
data structures
,
greedy
,
sortings
1000
x18135
1618D
Array and Operations
dp
,
greedy
,
math
1300
x18097
1606B
Update Files
greedy
,
implementation
,
math
1100
x18085
1805B
The String Has a Target
greedy
,
strings
800
x18080
1492B
Card Deck
data structures
,
greedy
,
math
1100
x18041
1546A
AquaMoon and Two Arrays
brute force
,
greedy
800
x18040
1417A
Copy-paste
greedy
,
math
800
x18019
1696A
NIT orz!
bitmasks
,
greedy
800
x18012
1491A
K-th Largest Value
brute force
,
greedy
,
implementation
800
x17996
239A
Two Bags of Potatoes
greedy
,
implementation
,
math
1200
x17985
1478B
Nezzar and Lucky Number
brute force
,
dp
,
greedy
,
math
1100
x17974
1216B
Shooting
greedy
,
implementation
,
sortings
900
x17946
1948B
Array Fix
brute force
,
dp
,
greedy
,
implementation
1100
x17924
1695B
Circle Game
games
,
greedy
1000
x17917
1907C
Removal of Unattractive Pairs
constructive algorithms
,
greedy
,
math
,
strings
1200
x17890
1831B
Array merging
constructive algorithms
,
greedy
1000
x17888
1686B
Odd Subarrays
dp
,
greedy
800
x17820
1516B
AGAGA XOOORRR
bitmasks
,
brute force
,
dp
,
greedy
1500
x17816
1437A
Marketing Scheme
brute force
,
constructive algorithms
,
greedy
,
math
800
x17798
1688B
Patchouli's Magical Talisman
bitmasks
,
constructive algorithms
,
greedy
,
sortings
800
x17772
1418C
Mortal Kombat Tower
dp
,
graphs
,
greedy
,
shortest paths
1500
x17768
1635B
Avoid Local Maximums
greedy
800
x17755
1703F
Yet Another Problem About Pairs Satisfying an Inequality
binary search
,
data structures
,
dp
,
greedy
,
sortings
1300
x17719
1925B
A Balanced Problemset?
brute force
,
greedy
,
math
,
number theory
1200
x17673
1832C
Contrast Value
greedy
,
implementation
1200
x17669
1915E
Romantic Glasses
data structures
,
greedy
,
math
1300
x17653
1846C
Rudolf and the Another Competition
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
1200
x17628
1804A
Lame King
greedy
,
math
800
x17610
1793A
Yet Another Promotion
greedy
,
math
800
x17603
1807G1
Subsequence Addition (Easy Version)
brute force
,
data structures
,
dp
,
greedy
,
implementation
,
sortings
1100
x17583
1735B
Tea with Tangerines
greedy
,
math
900
x17563
1790D
Matryoshkas
data structures
,
greedy
,
sortings
1200
x17552
1399D
Binary String To Subsequences
constructive algorithms
,
data structures
,
greedy
,
implementation
1500
x17514
1560D
Make a Power of Two
greedy
,
math
,
strings
1300
x17511
1594C
Make Them Equal
brute force
,
greedy
,
math
,
strings
1200
x17504
1605B
Reverse Sort
greedy
,
sortings
1000
x17503
538B
Quasi Binary
constructive algorithms
,
dp
,
greedy
,
implementation
1400
x17497
1927D
Find the Different Ones!
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
two pointers
1300
x17436
1201B
Zero Array
greedy
,
math
1500
x17414
1641A
Great Sequence
brute force
,
greedy
,
sortings
1200
x17385
805A
Fake NP
greedy
,
math
1000
x17369
1899C
Yarik and Array
dp
,
greedy
,
two pointers
1100
x17336
1656B
Subtract Operation
data structures
,
greedy
,
math
,
two pointers
1100
x17332
1807G2
Subsequence Addition (Hard Version)
bitmasks
,
dp
,
greedy
,
implementation
,
sortings
1100
x17305
478C
Table Decorations
greedy
1800
x17303
1304B
Longest Palindrome
brute force
,
constructive algorithms
,
greedy
,
implementation
,
strings
1100
x17291
1863A
Channel
greedy
,
implementation
800
x17259
1466C
Canine poetry
dp
,
greedy
,
strings
1300
x17238
1138A
Sushi for Two
binary search
,
greedy
,
implementation
900
x17225
1637C
Andrew and Stones
greedy
,
implementation
1200
x17200
1914D
Three Activities
brute force
,
dp
,
greedy
,
implementation
,
sortings
1200
x17183
1553C
Penalty
bitmasks
,
brute force
,
dp
,
greedy
1200
x17165
1174A
Ehab Fails to Be Thanos
constructive algorithms
,
greedy
,
sortings
1000
x17099
546B
Soldier and Badges
brute force
,
greedy
,
implementation
,
sortings
1200
x17087
26B
Regular Bracket Sequence
greedy
1400
x17074
1204B
Mislove Has Lost an Array
greedy
,
math
900
x17049
1741C
Minimize the Thickness
brute force
,
greedy
,
math
,
two pointers
1100
x17025
1689B
Mystic Permutation
data structures
,
greedy
900
x16997
1504B
Flip the Bits
constructive algorithms
,
greedy
,
implementation
,
math
1200
x16993
1440B
Sum of Medians
greedy
,
math
900
x16993
1839A
The Good Array
greedy
,
implementation
,
math
800
x16982
1332B
Composite Coloring
brute force
,
constructive algorithms
,
greedy
,
math
,
number theory
1400
x16951
1420C1
Pokémon Army (easy version)
constructive algorithms
,
dp
,
greedy
1300
x16920
1113A
Sasha and His Trip
dp
,
greedy
,
math
900
x16908
1574B
Combinatorics Homework
combinatorics
,
greedy
,
math
1100
x16905
1625A
Ancient Civilization
bitmasks
,
greedy
,
math
800
x16882
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