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CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
11:39:43
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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
Standings
Custom test
Problems
#
Name
1081D
Maximum Distance
dsu
,
graphs
,
shortest paths
,
sortings
1800
x4152
1077E
Thematic Contests
greedy
,
sortings
1800
x4738
1076D
Edge Deletion
graphs
,
greedy
,
shortest paths
1800
x5267
1073C
Vasya and Robot
binary search
,
two pointers
1800
x4813
1067B
Multihedgehog
dfs and similar
,
graphs
,
shortest paths
1800
x2711
1066D
Boxes Packing
binary search
,
implementation
1800
x5508
1063B
Labyrinth
graphs
,
shortest paths
1800
x7604
1062D
Fun with Integers
dfs and similar
,
graphs
,
implementation
,
math
1800
x3969
1042D
Petya and Array
data structures
,
divide and conquer
,
two pointers
1800
x6291
1038D
Slime
dp
,
greedy
,
implementation
1800
x8419
1034A
Enlarge GCD
number theory
1800
x8805
1030D
Vasya and Triangle
geometry
,
number theory
1800
x5976
1016D
Vasya And The Matrix
constructive algorithms
,
flows
,
math
1800
x4721
1016C
Vasya And The Mushrooms
dp
,
implementation
1800
x3770
1010C
Border
number theory
1800
x4875
1010B
Rocket
binary search
,
interactive
1800
x5198
1005E1
Median on Segments (Permutations Edition)
sortings
1800
x3929
1002C2
Distinguish zero state and plus state without errors
1800
x267
991E
Bus Number
brute force
,
combinatorics
,
math
1800
x3509
989C
A Mist of Florescence
constructive algorithms
,
graphs
1800
x3820
988D
Points and Powers of Two
brute force
,
math
1800
x7350
986B
Petr and Permutations
combinatorics
,
math
1800
x4688
983B
XOR-pyramid
dp
1800
x5572
979B
Treasure Hunt
greedy
1800
x4438
963A
Alternating Sum
math
,
number theory
1800
x3334
958F2
Lightsabers (medium)
binary search
,
two pointers
1800
x1240
952D
I'm Feeling Lucky!
probabilities
1800
x2452
946D
Timetable
dp
1800
x4462
939E
Maximize!
binary search
,
greedy
,
ternary search
,
two pointers
1800
x3164
933A
A Twisty Movement
dp
1800
x4996
926B
Add Points
math
,
number theory
1800
x1715
923C
Perfect Security
data structures
,
greedy
,
strings
,
trees
1800
x4308
922D
Robot Vacuum Cleaner
greedy
,
sortings
1800
x4397
917A
The Monster
dp
,
greedy
,
implementation
,
math
1800
x3528
914C
Travelling Salesman and Special Numbers
brute force
,
combinatorics
,
dp
1800
x3847
913D
Too Easy Problems
binary search
,
brute force
,
data structures
,
greedy
,
sortings
1800
x4750
911D
Inversion Counting
brute force
,
math
1800
x4617
909C
Python Indentation
dp
1800
x4956
899D
Shovel Sale
constructive algorithms
,
math
1800
x2769
894B
Ralph And His Magic Field
combinatorics
,
constructive algorithms
,
math
,
number theory
1800
x4483
888E
Maximum Subsequence
bitmasks
,
divide and conquer
,
meet-in-the-middle
1800
x7370
883K
Road Widening
constructive algorithms
,
greedy
,
implementation
1800
x1103
883H
Palindromic Cut
brute force
,
implementation
,
strings
1800
x1621
873D
Merge Sort
constructive algorithms
,
divide and conquer
1800
x3194
869C
The Intriguing Obsession
combinatorics
,
dp
,
math
1800
x4730
863D
Yet Another Array Queries Problem
data structures
,
implementation
1800
x3298
863C
1-2-3
graphs
,
implementation
1800
x2519
853B
Jury Meeting
greedy
,
sortings
,
two pointers
1800
x2535
847K
Travel Cards
greedy
,
implementation
,
sortings
1800
x1696
847E
Packmen
binary search
,
dp
1800
x3085
847C
Sum of Nestings
constructive algorithms
1800
x2381
846F
Random Query
data structures
,
math
,
probabilities
,
two pointers
1800
x2283
846C
Four Segments
brute force
,
data structures
,
dp
1800
x2691
846B
Math Show
brute force
,
greedy
1800
x2524
845D
Driving Test
data structures
,
dp
,
greedy
1800
x2393
830A
Office Keys
binary search
,
brute force
,
dp
,
greedy
,
sortings
1800
x7117
827B
High Load
constructive algorithms
,
greedy
,
implementation
,
trees
1800
x3542
822D
My pretty girl Noora
brute force
,
dp
,
greedy
,
math
,
number theory
1800
x3106
813B
The Golden Age
brute force
,
math
1800
x4001
802B
Heidi and Library (medium)
data structures
,
greedy
1800
x1140
802A
Heidi and Library (easy)
greedy
1800
x1387
799C
Fountains
binary search
,
data structures
,
implementation
1800
x3781
794C
Naming Company
games
,
greedy
,
sortings
1800
x3147
784C
INTERCALC
*special problem
,
implementation
1800
x727
778B
Bitwise Formula
bitmasks
,
brute force
,
dfs and similar
,
expression parsing
,
implementation
1800
x2328
777D
Cloud of Hashtags
binary search
,
greedy
,
implementation
,
strings
1800
x5031
776C
Molly's Chemicals
binary search
,
brute force
,
data structures
,
implementation
,
math
1800
x5956
772B
Volatile Kite
geometry
1800
x3316
772A
Voltage Keepsake
binary search
,
math
1800
x4367
768C
Jon Snow and his Favourite Number
brute force
,
dp
,
implementation
,
sortings
1800
x3813
747D
Winter Is Coming
dp
,
greedy
,
sortings
1800
x3281
743D
Chloe and pleasant prizes
dfs and similar
,
dp
,
graphs
,
trees
1800
x4379
733C
Epidemic in Monstropolis
constructive algorithms
,
dp
,
greedy
,
two pointers
1800
x3348
730B
Minimum and Maximum
constructive algorithms
,
interactive
1800
x2490
730A
Toda 2
greedy
,
implementation
1800
x1592
727D
T-shirts Distribution
constructive algorithms
,
flows
,
greedy
1800
x1887
725D
Contest Balloons
data structures
,
greedy
1800
x2810
724C
Ray Tracing
greedy
,
hashing
,
implementation
,
math
,
number theory
,
sortings
1800
x2145
721C
Journey
dp
,
graphs
1800
x5917
706D
Vasiliy's Multiset
binary search
,
bitmasks
,
data structures
,
trees
1800
x10212
700B
Connecting Universities
dfs and similar
,
dp
,
graphs
,
trees
1800
x4020
691C
Exponential notation
implementation
,
strings
1800
x2615
690E1
Photographs (I)
1800
x677
690D2
The Wall (medium)
combinatorics
1800
x1249
687B
Remainders Game
chinese remainder theorem
,
math
,
number theory
1800
x5951
683F
Reformat the String
*special problem
1800
x146
683E
Hammer throwing
*special problem
1800
x188
675D
Tree Construction
data structures
,
trees
1800
x3818
671A
Recycling Bottles
dp
,
geometry
,
greedy
,
implementation
1800
x4193
666A
Reberland Linguistics
dp
,
implementation
,
strings
1800
x3557
665D
Simple Subset
constructive algorithms
,
greedy
,
number theory
1800
x3596
663A
Rebus
constructive algorithms
,
expression parsing
,
greedy
,
math
1800
x3303
652D
Nested Segments
data structures
,
sortings
1800
x4038
652C
Foe Pairs
combinatorics
,
sortings
,
two pointers
1800
x3255
645D
Robot Rapping Results Report
binary search
,
dp
,
graphs
1800
x2936
641C
Little Artem and Dance
brute force
,
constructive algorithms
,
implementation
1800
x3081
638D
Three-dimensional Turtle Super Computer
brute force
,
dfs and similar
,
graphs
1800
x722
638C
Road Improvement
*special problem
,
dfs and similar
,
graphs
,
greedy
,
trees
1800
x1667
630M
Turn
geometry
,
math
1800
x1184
626D
Jerry's Protest
brute force
,
combinatorics
,
dp
,
probabilities
1800
x2767
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