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CodeTON Round 8 (Div. 1 + Div. 2, Rated, Prizes!)
36:11:03
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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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Status
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Custom test
Problems
#
Name
489B
BerSU Ball
dfs and similar
,
dp
,
graph matchings
,
greedy
,
sortings
,
two pointers
1200
x45836
327A
Flipping Game
brute force
,
dp
,
implementation
1200
x39548
1343C
Alternating Subsequence
dp
,
greedy
,
two pointers
1200
x35984
433B
Kuriyama Mirai's Stones
dp
,
implementation
,
sortings
1200
x35488
1354B
Ternary String
binary search
,
dp
,
implementation
,
two pointers
1200
x28806
1097B
Petr and a Combination Lock
bitmasks
,
brute force
,
dp
1200
x26004
1472D
Even-Odd Game
dp
,
games
,
greedy
,
sortings
1200
x25802
1355B
Young Explorers
dp
,
greedy
,
sortings
1200
x24711
1272C
Yet Another Broken Keyboard
combinatorics
,
dp
,
implementation
1200
x24705
1406B
Maximum Product
brute force
,
dp
,
greedy
,
implementation
,
sortings
1200
x21900
1926C
Vlad and a Sum of Sum of Digits
dp
,
implementation
1200
x21704
1598C
Delete Two Elements
data structures
,
dp
,
implementation
,
math
,
two pointers
1200
x19835
961B
Lecture Sleep
data structures
,
dp
,
implementation
,
two pointers
1200
x18890
1846C
Rudolf and the Another Competition
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
1200
x17626
1914D
Three Activities
brute force
,
dp
,
greedy
,
implementation
,
sortings
1200
x17171
1553C
Penalty
bitmasks
,
brute force
,
dp
,
greedy
1200
x17163
1843D
Apple Tree
combinatorics
,
dfs and similar
,
dp
,
math
,
trees
1200
x16675
1713C
Build Permutation
constructive algorithms
,
dp
,
math
1200
x16670
1485B
Replace and Keep Sorted
dp
,
implementation
,
math
1200
x16561
1029B
Creating the Contest
dp
,
greedy
,
math
1200
x16317
1859C
Another Permutation Problem
brute force
,
dp
,
greedy
,
math
1200
x16079
522A
Reposts
*special problem
,
dfs and similar
,
dp
,
graphs
,
trees
1200
x15569
1934B
Yet Another Coin Problem
brute force
,
dp
,
greedy
,
math
1200
x15545
1941D
Rudolf and the Ball Game
dfs and similar
,
dp
,
implementation
1200
x15388
1042B
Vitamins
bitmasks
,
brute force
,
dp
,
implementation
1200
x14923
1200B
Block Adventure
dp
,
greedy
1200
x13554
1245B
Restricted RPS
constructive algorithms
,
dp
,
greedy
1200
x13404
998B
Cutting
dp
,
greedy
,
sortings
1200
x12665
1140D
Minimum Triangulation
dp
,
greedy
,
math
1200
x12325
729B
Spotlights
dp
,
implementation
1200
x7677
1769C1
Подкрутка I
*special problem
,
brute force
,
dp
,
greedy
1200
x921
189A
Cut Ribbon
brute force
,
dp
1300
x61538
476B
Dreamoon and WiFi
bitmasks
,
brute force
,
combinatorics
,
dp
,
math
,
probabilities
1300
x28735
1360E
Polygon
dp
,
graphs
,
implementation
,
shortest paths
1300
x24231
1470A
Strange Birthday Party
binary search
,
dp
,
greedy
,
sortings
,
two pointers
1300
x20933
1555C
Coin Rows
brute force
,
constructive algorithms
,
dp
,
implementation
1300
x20653
1285B
Just Eat It!
dp
,
greedy
,
implementation
1300
x20564
1660C
Get an Even String
dp
,
greedy
,
strings
1300
x18550
1037C
Equalize
dp
,
greedy
,
strings
1300
x18207
1618D
Array and Operations
dp
,
greedy
,
math
1300
x18096
1703F
Yet Another Problem About Pairs Satisfying an Inequality
binary search
,
data structures
,
dp
,
greedy
,
sortings
1300
x17716
1927D
Find the Different Ones!
binary search
,
brute force
,
data structures
,
dp
,
dsu
,
greedy
,
two pointers
1300
x17423
1466C
Canine poetry
dp
,
greedy
,
strings
1300
x17237
1420C1
Pokémon Army (easy version)
constructive algorithms
,
dp
,
greedy
1300
x16920
1661B
Getting Zero
bitmasks
,
brute force
,
dfs and similar
,
dp
,
graphs
,
greedy
,
shortest paths
1300
x16772
1443B
Saving the City
dp
,
greedy
,
math
,
sortings
1300
x15396
1844C
Particles
dp
,
greedy
,
implementation
,
math
1300
x14596
1879C
Make it Alternating
combinatorics
,
dp
,
greedy
1300
x14395
1753A1
Make Nonzero Sum (easy version)
constructive algorithms
,
dp
,
greedy
1300
x14133
1176C
Lose it!
dp
,
greedy
,
implementation
1300
x13788
1553B
Reverse String
brute force
,
dp
,
hashing
,
implementation
,
strings
1300
x13736
1676G
White-Black Balanced Subtrees
dfs and similar
,
dp
,
graphs
,
trees
1300
x13722
1459B
Move and Turn
dp
,
math
1300
x13689
1178B
WOW Factor
dp
,
strings
1300
x13617
1766C
Hamiltonian Wall
dp
,
implementation
1300
x12901
1534C
Little Alawn's Puzzle
combinatorics
,
dp
,
dsu
,
graphs
,
math
1300
x12413
1948C
Arrow Path
brute force
,
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
shortest paths
1300
x12393
1937B
Binary Path
dp
,
greedy
,
implementation
1300
x12159
1774C
Ice and Fire
constructive algorithms
,
dp
,
greedy
1300
x11445
1870C
Colorful Table
binary search
,
data structures
,
dp
,
implementation
,
math
,
two pointers
1300
x10521
628B
New Skateboard
dp
1300
x10230
1945D
Seraphim the Owl
dp
,
greedy
1300
x10126
1900C
Anji's Binary Tree
dfs and similar
,
dp
,
trees
1300
x9981
777B
Game of Credit Cards
data structures
,
dp
,
greedy
,
sortings
1300
x9292
870C
Maximum splitting
dp
,
greedy
,
math
,
number theory
1300
x8924
665C
Simple Strings
dp
,
greedy
,
strings
1300
x8915
1315B
Homecoming
binary search
,
dp
,
greedy
,
strings
1300
x8882
416B
Art Union
brute force
,
dp
,
implementation
1300
x8395
798B
Mike and strings
brute force
,
dp
,
strings
1300
x8241
1040B
Shashlik Cooking
dp
,
greedy
,
math
1300
x7004
626B
Cards
constructive algorithms
,
dp
,
math
1300
x6482
234C
Weather
dp
,
implementation
1300
x5295
653B
Bear and Compressing
brute force
,
dfs and similar
,
dp
,
strings
1300
x4847
1769C2
Подкрутка II
*special problem
,
dp
1300
x901
489C
Given Length and Sum of Digits...
dp
,
greedy
,
implementation
1400
x44050
1526B
I Hate 1111
dp
,
math
,
number theory
1400
x28198
698A
Vacations
dp
1400
x28074
1195C
Basketball Exercise
dp
1400
x23461
414B
Mashmokh and ACM
combinatorics
,
dp
,
number theory
1400
x20284
1350B
Orac and Models
dp
,
math
,
number theory
1400
x20234
1380C
Create The Teams
brute force
,
dp
,
greedy
,
implementation
,
sortings
1400
x19728
538B
Quasi Binary
constructive algorithms
,
dp
,
greedy
,
implementation
1400
x17496
289B
Polo the Penguin and Matrix
brute force
,
dp
,
implementation
,
sortings
,
ternary search
1400
x16633
1245C
Constanze's Machine
dp
1400
x16590
1919C
Grouping Increases
data structures
,
dp
,
greedy
1400
x16268
1535C
Unstable String
binary search
,
dp
,
greedy
,
implementation
,
strings
,
two pointers
1400
x15949
1692G
2^Sort
data structures
,
dp
,
sortings
,
two pointers
1400
x15452
1320A
Journey Planning
data structures
,
dp
,
greedy
,
math
,
sortings
1400
x15201
1451C
String Equality
dp
,
greedy
,
hashing
,
implementation
,
strings
1400
x15118
1108D
Diverse Garland
constructive algorithms
,
dp
,
greedy
1400
x14623
1706C
Qpwoeirut And The City
dp
,
flows
,
greedy
,
implementation
1400
x14321
1644C
Increase Subarray Sums
brute force
,
dp
,
greedy
,
implementation
1400
x13229
1845C
Strong Password
binary search
,
dp
,
greedy
,
strings
1400
x13073
987C
Three displays
brute force
,
dp
,
implementation
1400
x12972
1771B
Hossam and Friends
binary search
,
constructive algorithms
,
dp
,
two pointers
1400
x12499
1461B
Find the Spruce
brute force
,
dp
,
implementation
1400
x12317
1860C
Game on Permutation
data structures
,
dp
,
games
,
greedy
1400
x12149
1830A
Copil Copac Draws Trees
dfs and similar
,
dp
,
graphs
,
trees
1400
x12135
1847C
Vampiric Powers, anyone?
bitmasks
,
brute force
,
dp
,
greedy
1400
x11988
1276A
As Simple as One and Two
dp
,
greedy
1400
x11938
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