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Codeforces Round 968 (Div. 2)
34:21:44
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combine-tags-by-or
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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
2004A
Closest Point
implementation
,
math
800
x24838
2002A
Distanced Coloring
constructive algorithms
,
implementation
,
math
800
x17101
2001B
Generate Permutation
constructive algorithms
800
x20497
2001A
Make All Equal
greedy
,
implementation
800
x24605
2000B
Seating in a Bus
two pointers
800
x29371
2000A
Primary Task
implementation
,
math
,
strings
800
x31944
1999C
Showering
greedy
,
implementation
800
x31012
1999A
A+B Again?
implementation
,
math
800
x42644
1998A
Find K Distinct Points with Fixed Center
constructive algorithms
,
implementation
,
math
800
x21715
1997A
Strong Password
brute force
,
implementation
,
strings
800
x26284
1996B
Scale
greedy
,
implementation
800
x30077
1996A
Legs
binary search
,
math
,
ternary search
800
x37570
1995A
Diagonals
brute force
,
greedy
,
implementation
,
math
800
x22756
1994A
Diverse Game
constructive algorithms
,
greedy
,
implementation
800
x19115
1993A
Question Marks
greedy
,
implementation
800
x27041
1992C
Gorilla and Permutation
constructive algorithms
,
math
900
x27096
1992B
Angry Monk
greedy
,
math
,
sortings
800
x32186
1992A
Only Pluses
brute force
,
constructive algorithms
,
greedy
,
math
,
sortings
800
x38254
1991A
Maximize the Last Element
greedy
,
implementation
800
x20273
1990A
Submission Bait
brute force
,
games
,
greedy
,
sortings
900
x20345
1989A
Catch the Coin
implementation
800
x25118
1988B
Make Majority
greedy
,
implementation
900
x20912
1988A
Split the Multiset
brute force
,
greedy
,
implementation
,
math
900
x21385
1987A
Upload More RAM
greedy
,
math
800
x23888
1986A
X Axis
brute force
,
geometry
,
math
,
sortings
800
x38035
1985D
Manhattan Circle
implementation
,
math
900
x32349
1985B
Maximum Multiple Sum
brute force
,
math
,
number theory
800
x43119
1985A
Creating Words
implementation
,
strings
800
x48764
1984A
Strange Splitting
constructive algorithms
800
x20315
1983A
Array Divisibility
constructive algorithms
,
math
800
x24467
1982A
Soccer
greedy
,
implementation
,
math
,
sortings
800
x23878
1981A
Turtle and Piggy Are Playing a Game
brute force
,
greedy
,
math
800
x21364
1980B
Choosing Cubes
sortings
,
sortings
800
x33268
1980A
Problem Generator
math
800
x38513
1979A
Guess the Maximum
brute force
,
greedy
,
implementation
800
x28066
1978B
New Bakery
binary search
,
greedy
,
math
,
ternary search
800
x21298
1978A
Alice and Books
constructive algorithms
,
greedy
,
sortings
800
x24453
1977A
Little Nikita
math
800
x29642
1976A
Verify Password
implementation
,
sortings
,
strings
800
x27475
1975A
Bazoka and Mocha's Array
brute force
,
greedy
,
implementation
,
sortings
800
x18025
1974B
Symmetric Encoding
implementation
,
sortings
,
strings
800
x29213
1974A
Phone Desktop
greedy
,
math
800
x32044
1973A
Chess For Three
brute force
,
dp
,
implementation
,
math
900
x23316
1972B
Coin Games
games
900
x20434
1972A
Contest Proposal
brute force
,
greedy
,
two pointers
800
x22166
1971C
Clock and Strings
implementation
900
x30939
1971B
Different String
implementation
,
strings
800
x35063
1971A
My First Sorting Problem
implementation
,
sortings
800
x42343
1969A
Two Friends
constructive algorithms
,
implementation
,
math
800
x19311
1968B
Prefiquence
greedy
,
two pointers
800
x27069
1968A
Maximize?
brute force
,
math
,
number theory
800
x32318
1966A
Card Exchange
constructive algorithms
,
games
,
greedy
800
x17248
1957A
Stickogon
constructive algorithms
,
greedy
800
x22633
1956B
Nene and the Card Game
games
,
greedy
800
x20794
1956A
Nene's Game
binary search
,
brute force
,
data structures
,
games
,
greedy
800
x21030
1955A
Yogurt Sale
math
800
x41406
1954A
Painting the Ribbon
constructive algorithms
,
greedy
,
math
900
x23241
1951A
Dual Trigger
constructive algorithms
,
greedy
,
math
900
x18964
1950C
Clock Conversion
implementation
,
math
800
x38408
1950B
Upscaling
implementation
800
x36762
1950A
Stair, Peak, or Neither?
implementation
800
x49708
1948A
Special Characters
brute force
,
constructive algorithms
800
x27974
1946A
Median of an Array
greedy
,
implementation
,
sortings
800
x25488
1945B
Fireworks
math
,
number theory
900
x21889
1945A
Setting up Camp
greedy
,
math
800
x26883
1944A
Destroying Bridges
graphs
,
greedy
,
math
800
x23070
1942A
Farmer John's Challenge
constructive algorithms
,
math
800
x16930
1941C
Rudolf and the Ugly String
dp
,
greedy
,
strings
900
x32297
1941A
Rudolf and the Ticket
brute force
,
math
800
x41454
1937A
Shuffle Party
implementation
,
math
800
x22754
1935A
Entertainment in MAC
constructive algorithms
,
strings
800
x27450
1934A
Too Min Too Max
greedy
,
math
800
x24844
1933B
Turtle Math: Fast Three Task
implementation
,
math
,
number theory
800
x32032
1933A
Turtle Puzzle: Rearrange and Negate
greedy
,
math
,
sortings
800
x37429
1932A
Thorns and Coins
dp
,
greedy
,
implementation
800
x28759
1931B
Make Equal
greedy
800
x31641
1931A
Recovering a Small String
brute force
,
strings
800
x35576
1930A
Maximise The Score
greedy
,
sortings
800
x18159
1929B
Sasha and the Drawing
constructive algorithms
,
greedy
,
math
800
x24804
1929A
Sasha and the Beautiful Array
constructive algorithms
,
greedy
,
math
,
sortings
800
x30785
1928A
Rectangle Cutting
geometry
,
math
800
x22199
1927B
Following the String
constructive algorithms
,
greedy
,
strings
900
x32338
1927A
Make it White
greedy
,
strings
800
x42039
1926B
Vlad and Shapes
geometry
,
implementation
800
x31735
1926A
Vlad and the Best of Five
implementation
800
x46132
1925A
We Got Everything Covered!
constructive algorithms
,
greedy
,
strings
800
x28283
1923A
Moving Chips
greedy
,
implementation
800
x24233
1922A
Tricky Template
constructive algorithms
,
implementation
,
strings
800
x26669
1921C
Sending Messages
greedy
,
math
900
x28774
1921B
Arranging Cats
greedy
,
implementation
800
x33245
1921A
Square
greedy
,
math
800
x42088
1920A
Satisfying Constraints
brute force
,
greedy
,
math
800
x27370
1919B
Plus-Minus Split
greedy
800
x29464
1919A
Wallet Exchange
games
,
math
800
x32855
1918B
Minimize Inversions
constructive algorithms
,
data structures
,
greedy
,
implementation
,
sortings
900
x23266
1918A
Brick Wall
constructive algorithms
,
greedy
,
implementation
,
math
800
x29771
1917A
Least Product
constructive algorithms
,
math
800
x25081
1916A
2023
constructive algorithms
,
implementation
,
math
,
number theory
800
x25383
1915D
Unnatural Language Processing
greedy
,
implementation
,
strings
900
x29535
1915C
Can I Square?
binary search
,
implementation
800
x40859
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