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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
33:58:46
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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
Standings
Custom test
Problems
#
Name
2038N
Fixing the Expression
implementation
800
x5050
2038J
Waiting for...
greedy
,
implementation
800
x4004
2037C
Superultra's Favorite Permutation
constructive algorithms
,
greedy
,
math
,
number theory
1000
x14242
2037B
Intercepted Inputs
brute force
,
implementation
800
x16545
2037A
Twice
implementation
800
x21340
2036B
Startup
greedy
,
sortings
800
x22669
2036A
Quintomania
implementation
800
x30044
2035B
Everyone Loves Tres
constructive algorithms
,
greedy
,
math
,
number theory
900
x14465
2035A
Sliding
implementation
,
math
800
x14705
2033B
Sakurako and Water
brute force
,
constructive algorithms
,
greedy
900
x22783
2033A
Sakurako and Kosuke
constructive algorithms
,
implementation
,
math
800
x32653
2032A
Circuit
greedy
,
implementation
,
math
,
number theory
800
x20045
2031B
Penchick and Satay Sticks
brute force
,
greedy
,
sortings
900
x12931
2031A
Penchick and Modern Monument
constructive algorithms
,
dp
,
greedy
,
math
800
x14132
2030B
Minimise Oneness
combinatorics
,
constructive algorithms
,
games
,
math
800
x19942
2030A
A Gift From Orangutan
constructive algorithms
,
greedy
,
math
,
sortings
800
x23279
2029A
Set
greedy
,
math
800
x10766
2028A
Alice's Adventures in ''Chess''
brute force
,
implementation
,
math
900
x13500
2027A
Rectangle Arrangement
geometry
,
implementation
,
math
800
x18353
2026A
Perpendicular Segments
constructive algorithms
,
geometry
,
greedy
,
math
900
x15768
2025A
Two Screens
binary search
,
greedy
,
strings
,
two pointers
800
x23372
2024A
Profitable Interest Rate
greedy
,
math
800
x18713
2022A
Bus to Pénjamo
constructive algorithms
,
greedy
,
implementation
,
math
800
x13682
2021A
Meaning Mean
data structures
,
greedy
,
math
,
sortings
800
x18531
2020A
Find Minimum Operations
bitmasks
,
brute force
,
greedy
,
math
,
number theory
800
x21808
2019A
Max Plus Size
brute force
,
dp
,
greedy
800
x22785
2014B
Robin Hood and the Major Oak
math
800
x28168
2014A
Robin Helps
greedy
,
implementation
800
x36912
2013B
Battle for Survive
constructive algorithms
,
greedy
,
math
900
x22902
2013A
Zhan's Blender
constructive algorithms
,
math
800
x27057
2010B
Three Brothers
brute force
,
implementation
,
math
800
x19768
2010A
Alternating Sum of Numbers
brute force
,
implementation
,
math
800
x16742
2009B
osu!mania
brute force
,
implementation
800
x41596
2009A
Minimize!
brute force
,
math
800
x50953
2008C
Longest Good Array
binary search
,
brute force
,
math
800
x30258
2008B
Square or Not
brute force
,
math
,
strings
800
x28455
2008A
Sakurako's Exam
brute force
,
constructive algorithms
,
greedy
,
math
800
x35136
2007B
Index and Maximum Value
data structures
,
greedy
900
x21148
2007A
Dora's Set
greedy
,
math
,
number theory
800
x22612
2005B1
The Strict Teacher (Easy Version)
greedy
,
math
,
sortings
1000
x19908
2005A
Simple Palindrome
combinatorics
,
constructive algorithms
,
greedy
,
math
900
x21617
2004B
Game with Doors
brute force
,
greedy
1000
x26029
2004A
Closest Point
implementation
,
math
800
x30255
2003B
Turtle and Piggy Are Playing a Game 2
games
,
greedy
,
sortings
800
x25088
2003A
Turtle and Good Strings
greedy
,
strings
800
x28900
2002B
Removals Game
constructive algorithms
,
games
1000
x18822
2002A
Distanced Coloring
constructive algorithms
,
implementation
,
math
800
x19425
2001B
Generate Permutation
constructive algorithms
800
x23999
2001A
Make All Equal
greedy
,
implementation
800
x29533
2000C
Numeric String Template
data structures
,
strings
1000
x25381
2000B
Seating in a Bus
two pointers
800
x33777
2000A
Primary Task
implementation
,
math
,
strings
800
x37317
1999C
Showering
greedy
,
implementation
800
x35068
1999B
Card Game
brute force
,
constructive algorithms
,
implementation
1000
x32395
1999A
A+B Again?
implementation
,
math
800
x55993
1998B
Minimize Equal Sum Subarrays
constructive algorithms
,
math
,
number theory
1000
x23790
1998A
Find K Distinct Points with Fixed Center
constructive algorithms
,
implementation
,
math
800
x23944
1997A
Strong Password
brute force
,
implementation
,
strings
800
x29232
1996B
Scale
greedy
,
implementation
800
x32586
1996A
Legs
binary search
,
math
,
ternary search
800
x43260
1995A
Diagonals
brute force
,
greedy
,
implementation
,
math
800
x24236
1994A
Diverse Game
constructive algorithms
,
greedy
,
implementation
800
x20238
1993A
Question Marks
greedy
,
implementation
800
x29420
1992C
Gorilla and Permutation
constructive algorithms
,
math
900
x29140
1992B
Angry Monk
greedy
,
math
,
sortings
800
x34301
1992A
Only Pluses
brute force
,
constructive algorithms
,
greedy
,
math
,
sortings
800
x41371
1991A
Maximize the Last Element
greedy
,
implementation
800
x21859
1990A
Submission Bait
brute force
,
games
,
greedy
,
sortings
900
x22728
1989A
Catch the Coin
implementation
800
x26407
1988B
Make Majority
greedy
,
implementation
900
x22807
1988A
Split the Multiset
brute force
,
greedy
,
implementation
,
math
900
x23274
1987B
K-Sort
greedy
1000
x20495
1987A
Upload More RAM
greedy
,
math
800
x25381
1986B
Matrix Stabilization
brute force
,
data structures
,
greedy
,
sortings
1000
x26650
1986A
X Axis
brute force
,
geometry
,
math
,
sortings
800
x40592
1985D
Manhattan Circle
implementation
,
math
900
x34692
1985C
Good Prefixes
greedy
1000
x32488
1985B
Maximum Multiple Sum
brute force
,
math
,
number theory
800
x46480
1985A
Creating Words
implementation
,
strings
800
x54110
1984A
Strange Splitting
constructive algorithms
800
x21182
1983A
Array Divisibility
constructive algorithms
,
math
800
x25707
1982A
Soccer
greedy
,
implementation
,
math
,
sortings
800
x25183
1981A
Turtle and Piggy Are Playing a Game
brute force
,
greedy
,
math
800
x22328
1980B
Choosing Cubes
sortings
,
sortings
800
x34757
1980A
Problem Generator
math
800
x40752
1979B
XOR Sequences
bitmasks
,
greedy
1000
x22653
1979A
Guess the Maximum
brute force
,
greedy
,
implementation
800
x29081
1978B
New Bakery
binary search
,
greedy
,
math
,
ternary search
800
x22408
1978A
Alice and Books
constructive algorithms
,
greedy
,
sortings
800
x25774
1977A
Little Nikita
math
800
x33178
1976A
Verify Password
implementation
,
sortings
,
strings
800
x28666
1975B
378QAQ and Mocha's Array
brute force
,
greedy
,
math
,
sortings
1000
x17906
1975A
Bazoka and Mocha's Array
brute force
,
greedy
,
implementation
,
sortings
800
x18543
1974B
Symmetric Encoding
implementation
,
sortings
,
strings
800
x30349
1974A
Phone Desktop
greedy
,
math
800
x33298
1973A
Chess For Three
brute force
,
dp
,
implementation
,
math
900
x24622
1972B
Coin Games
games
900
x21696
1972A
Contest Proposal
brute force
,
greedy
,
two pointers
800
x23003
1971C
Clock and Strings
implementation
900
x33191
1971B
Different String
implementation
,
strings
800
x37091
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