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Rayan
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Before contest
Codeforces Round 995 (Div. 3)
07:39:54
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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
#
Name
2050A
Line Breaks
implementation
800
x26250
2047A
Alyona and a Square Jigsaw Puzzle
implementation
,
math
800
x12554
2042A
Greedy Monocarp
greedy
,
sortings
800
x15956
2040A
Game of Division
games
,
math
800
x18957
2039A
Shohag Loves Mod
constructive algorithms
,
number theory
800
x14703
2038N
Fixing the Expression
implementation
800
x8240
2038J
Waiting for...
greedy
,
implementation
800
x6361
2037B
Intercepted Inputs
brute force
,
implementation
800
x20773
2037A
Twice
implementation
800
x27320
2036B
Startup
greedy
,
sortings
800
x24510
2036A
Quintomania
implementation
800
x32709
2035A
Sliding
implementation
,
math
800
x15766
2034A
King Keykhosrow's Mystery
brute force
,
chinese remainder theorem
,
math
,
number theory
800
x14578
2033A
Sakurako and Kosuke
constructive algorithms
,
implementation
,
math
800
x34266
2032A
Circuit
greedy
,
implementation
,
math
,
number theory
800
x21230
2031A
Penchick and Modern Monument
constructive algorithms
,
dp
,
greedy
,
math
800
x16903
2030B
Minimise Oneness
combinatorics
,
constructive algorithms
,
games
,
math
800
x20610
2030A
A Gift From Orangutan
constructive algorithms
,
greedy
,
math
,
sortings
800
x24092
2029A
Set
greedy
,
math
800
x11579
2027A
Rectangle Arrangement
geometry
,
implementation
,
math
800
x19268
2025A
Two Screens
binary search
,
greedy
,
strings
,
two pointers
800
x24071
2024A
Profitable Interest Rate
greedy
,
math
800
x19515
2022A
Bus to Pénjamo
constructive algorithms
,
greedy
,
implementation
,
math
800
x14243
2021A
Meaning Mean
data structures
,
greedy
,
math
,
sortings
800
x18950
2020A
Find Minimum Operations
bitmasks
,
brute force
,
greedy
,
math
,
number theory
800
x22330
2019A
Max Plus Size
brute force
,
dp
,
greedy
800
x23336
2014B
Robin Hood and the Major Oak
math
800
x28838
2014A
Robin Helps
greedy
,
implementation
800
x38034
2013A
Zhan's Blender
constructive algorithms
,
math
800
x27743
2010B
Three Brothers
brute force
,
implementation
,
math
800
x20453
2010A
Alternating Sum of Numbers
brute force
,
implementation
,
math
800
x17279
2009B
osu!mania
brute force
,
implementation
800
x43583
2009A
Minimize!
brute force
,
math
800
x54040
2008C
Longest Good Array
binary search
,
brute force
,
math
800
x31069
2008B
Square or Not
brute force
,
math
,
strings
800
x29115
2008A
Sakurako's Exam
brute force
,
constructive algorithms
,
greedy
,
math
800
x35862
2007A
Dora's Set
greedy
,
math
,
number theory
800
x22918
2004A
Closest Point
implementation
,
math
800
x30602
2003B
Turtle and Piggy Are Playing a Game 2
games
,
greedy
,
sortings
800
x25387
2003A
Turtle and Good Strings
greedy
,
strings
800
x29438
2002A
Distanced Coloring
constructive algorithms
,
implementation
,
math
800
x19649
2001B
Generate Permutation
constructive algorithms
800
x24258
2001A
Make All Equal
greedy
,
implementation
800
x30003
2000B
Seating in a Bus
two pointers
800
x34557
2000A
Primary Task
implementation
,
math
,
strings
800
x38072
1999C
Showering
greedy
,
implementation
800
x36042
1999A
A+B Again?
implementation
,
math
800
x58860
1998A
Find K Distinct Points with Fixed Center
constructive algorithms
,
implementation
,
math
800
x24286
1997A
Strong Password
brute force
,
implementation
,
strings
800
x29858
1996B
Scale
greedy
,
implementation
800
x33227
1996A
Legs
binary search
,
math
,
ternary search
800
x44542
1995A
Diagonals
brute force
,
greedy
,
implementation
,
math
800
x24496
1994A
Diverse Game
constructive algorithms
,
greedy
,
implementation
800
x20481
1993A
Question Marks
greedy
,
implementation
800
x29799
1992B
Angry Monk
greedy
,
math
,
sortings
800
x34664
1992A
Only Pluses
brute force
,
constructive algorithms
,
greedy
,
math
,
sortings
800
x42183
1991A
Maximize the Last Element
greedy
,
implementation
800
x22132
1989A
Catch the Coin
implementation
800
x26673
1987A
Upload More RAM
greedy
,
math
800
x25721
1986A
X Axis
brute force
,
geometry
,
math
,
sortings
800
x41569
1985B
Maximum Multiple Sum
brute force
,
math
,
number theory
800
x47643
1985A
Creating Words
implementation
,
strings
800
x56013
1984A
Strange Splitting
constructive algorithms
800
x21446
1983A
Array Divisibility
constructive algorithms
,
math
800
x26135
1982A
Soccer
greedy
,
implementation
,
math
,
sortings
800
x25452
1981A
Turtle and Piggy Are Playing a Game
brute force
,
greedy
,
math
800
x22617
1980B
Choosing Cubes
sortings
,
sortings
800
x35158
1980A
Problem Generator
math
800
x41525
1979A
Guess the Maximum
brute force
,
greedy
,
implementation
800
x29356
1978B
New Bakery
binary search
,
greedy
,
math
,
ternary search
800
x22704
1978A
Alice and Books
constructive algorithms
,
greedy
,
sortings
800
x26049
1977A
Little Nikita
math
800
x33905
1976A
Verify Password
implementation
,
sortings
,
strings
800
x29122
1975A
Bazoka and Mocha's Array
brute force
,
greedy
,
implementation
,
sortings
800
x19005
1974B
Symmetric Encoding
implementation
,
sortings
,
strings
800
x30867
1974A
Phone Desktop
greedy
,
math
800
x33718
1972A
Contest Proposal
brute force
,
greedy
,
two pointers
800
x23306
1971B
Different String
implementation
,
strings
800
x37815
1971A
My First Sorting Problem
implementation
,
sortings
800
x47110
1969A
Two Friends
constructive algorithms
,
implementation
,
math
800
x20245
1968B
Prefiquence
greedy
,
two pointers
800
x28274
1968A
Maximize?
brute force
,
math
,
number theory
800
x35130
1966A
Card Exchange
constructive algorithms
,
games
,
greedy
800
x18070
1957A
Stickogon
constructive algorithms
,
greedy
800
x23583
1956B
Nene and the Card Game
games
,
greedy
800
x21456
1956A
Nene's Game
binary search
,
brute force
,
data structures
,
games
,
greedy
800
x21970
1955A
Yogurt Sale
math
800
x44376
1950C
Clock Conversion
implementation
,
math
800
x40844
1950B
Upscaling
implementation
800
x39034
1950A
Stair, Peak, or Neither?
implementation
800
x54974
1948A
Special Characters
brute force
,
constructive algorithms
800
x29042
1946A
Median of an Array
greedy
,
implementation
,
sortings
800
x26335
1945A
Setting up Camp
greedy
,
math
800
x28068
1944A
Destroying Bridges
graphs
,
greedy
,
math
800
x24201
1942A
Farmer John's Challenge
constructive algorithms
,
math
800
x17462
1941A
Rudolf and the Ticket
brute force
,
math
800
x43146
1937A
Shuffle Party
implementation
,
math
800
x23390
1935A
Entertainment in MAC
constructive algorithms
,
strings
800
x28389
1934A
Too Min Too Max
greedy
,
math
800
x25729
1933B
Turtle Math: Fast Three Task
implementation
,
math
,
number theory
800
x33338
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