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Codeforces Round 943 (Div. 3)
21:51:36
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Difficulty:
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implementation
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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Problems
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Status
Standings
Custom test
Problems
#
Name
673A
Bear and Game
implementation
800
x9898
14A
Letter
implementation
800
x10043
884A
Book Reading
implementation
800
x10331
976A
Minimum Binary Number
implementation
800
x10361
954A
Diagonal Walking
implementation
800
x10372
363A
Soroban
implementation
800
x10466
1028A
Find Square
implementation
800
x10627
888A
Local Extrema
brute force
,
implementation
800
x10656
1043A
Elections
implementation
,
math
800
x10702
938A
Word Correction
implementation
800
x11022
1786A2
Alternating Deck (hard version)
implementation
800
x11211
1799A
Recent Actions
data structures
,
greedy
,
implementation
,
math
800
x11347
910A
The Way to Home
dfs and similar
,
dp
,
greedy
,
implementation
800
x11362
1130A
Be Positive
implementation
800
x11443
278A
Circle Line
implementation
800
x11448
712A
Memory and Crow
implementation
,
math
800
x11511
1501A
Alexey and Train
implementation
800
x11525
1150A
Stock Arbitraging
greedy
,
implementation
800
x11611
1009A
Game Shopping
implementation
800
x11642
931A
Friends Meeting
brute force
,
greedy
,
implementation
,
math
800
x11684
811A
Vladik and Courtesy
brute force
,
implementation
800
x11698
1315A
Dead Pixel
implementation
800
x11807
1209A
Paint the Numbers
greedy
,
implementation
,
math
800
x11924
78A
Haiku
implementation
,
strings
800
x11936
1085A
Right-Left Cipher
implementation
,
strings
800
x12059
680A
Bear and Five Cards
constructive algorithms
,
implementation
800
x12152
1106A
Lunar New Year and Cross Counting
implementation
800
x12276
735A
Ostap and Grasshopper
implementation
,
strings
800
x12291
1159A
A pile of stones
implementation
,
math
800
x12330
12A
Super Agent
implementation
800
x12375
678A
Johny Likes Numbers
implementation
,
math
800
x12524
1534A
Colour the Flag
brute force
,
implementation
800
x12575
1818A
Politics
greedy
,
implementation
800
x12693
620A
Professor GukiZ's Robot
implementation
,
math
800
x12726
1099A
Snowball
implementation
800
x12749
1031A
Golden Plate
implementation
,
math
800
x12755
796A
Buying A House
brute force
,
implementation
800
x12821
49A
Sleuth
implementation
800
x12880
992A
Nastya and an Array
implementation
,
sortings
800
x12890
1143A
The Doors
implementation
800
x13044
629A
Far Relative’s Birthday Cake
brute force
,
combinatorics
,
constructive algorithms
,
implementation
800
x13096
912A
Tricky Alchemy
implementation
800
x13303
1738A
Glory Addicts
greedy
,
implementation
,
sortings
800
x13321
900A
Find Extra One
geometry
,
implementation
800
x13350
1523A
Game of Life
implementation
800
x13394
710A
King Moves
implementation
800
x13443
16A
Flag
implementation
800
x13558
1786A1
Non-alternating Deck (easy version)
implementation
800
x13598
676A
Nicholas and Permutation
constructive algorithms
,
implementation
800
x13626
688A
Opponents
implementation
800
x13695
994A
Fingerprints
implementation
800
x13879
897A
Scarborough Fair
implementation
800
x13919
831B
Keyboard Layouts
implementation
,
strings
800
x14056
595A
Vitaly and Night
constructive algorithms
,
implementation
800
x14353
1038A
Equality
implementation
,
strings
800
x14409
454A
Little Pony and Crystal Mine
implementation
800
x14512
1065A
Vasya and Chocolate
implementation
,
math
800
x14541
146A
Lucky Ticket
implementation
800
x14590
908A
New Year and Counting Cards
brute force
,
implementation
800
x14603
1307A
Cow and Haybales
greedy
,
implementation
800
x14711
104A
Blackjack
implementation
800
x14814
937A
Olympiad
implementation
,
sortings
800
x14821
950A
Left-handers, Right-handers and Ambidexters
implementation
,
math
800
x14893
1152A
Neko Finds Grapes
greedy
,
implementation
,
math
800
x14956
672A
Summer Camp
implementation
800
x14982
1898A
Milica and String
brute force
,
implementation
,
strings
800
x15004
681A
A Good Contest
implementation
800
x15032
1104A
Splitting into digits
constructive algorithms
,
implementation
,
math
800
x15157
1670A
Prof. Slim
greedy
,
implementation
,
sortings
800
x15230
1243A
Maximum Square
implementation
800
x15333
1649A
Game
implementation
800
x15387
1802A
Likes
greedy
,
implementation
800
x15506
1672B
I love AAAB
constructive algorithms
,
implementation
800
x15557
898A
Rounding
implementation
,
math
800
x15589
1530B
Putting Plates
constructive algorithms
,
implementation
800
x15590
1678B1
Tokitsukaze and Good 01-String (easy version)
implementation
800
x15673
1909A
Distinct Buttons
implementation
,
math
800
x15678
1789B
Serval and Inversion Magic
brute force
,
implementation
,
strings
,
two pointers
800
x15752
1672A
Log Chopping
games
,
implementation
,
math
800
x15832
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x15852
401A
Vanya and Cards
implementation
,
math
800
x15866
384A
Coder
implementation
800
x15873
919A
Supermarket
brute force
,
greedy
,
implementation
800
x15878
1750B
Maximum Substring
brute force
,
greedy
,
implementation
800
x15939
1092A
Uniform String
implementation
800
x15946
551A
GukiZ and Contest
brute force
,
implementation
,
sortings
800
x15998
764A
Taymyr is calling you
brute force
,
implementation
,
math
800
x16031
1136A
Nastya Is Reading a Book
implementation
800
x16112
1668A
Direction Change
implementation
,
math
800
x16143
361A
Levko and Table
constructive algorithms
,
implementation
800
x16173
987A
Infinity Gauntlet
implementation
800
x16235
1820A
Yura's New Name
implementation
,
strings
800
x16341
1689A
Lex String
brute force
,
greedy
,
implementation
,
sortings
,
two pointers
800
x16370
1561A
Simply Strange Sort
brute force
,
implementation
,
sortings
800
x16443
1139A
Even Substrings
implementation
,
strings
800
x16453
1890B
Qingshan Loves Strings
constructive algorithms
,
implementation
800
x16610
615A
Bulbs
implementation
800
x16616
918A
Eleven
brute force
,
implementation
800
x16741
1750A
Indirect Sort
constructive algorithms
,
implementation
,
math
800
x16748
609A
USB Flash Drives
greedy
,
implementation
,
sortings
800
x16789
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