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Name
1381A2
Prefix Flip (Hard Version)
constructive algorithms
,
data structures
,
implementation
,
strings
,
two pointers
1700
x12771
1833D
Flipper
brute force
,
constructive algorithms
,
greedy
1400
x12738
5C
Longest Regular Bracket Sequence
constructive algorithms
,
data structures
,
dp
,
greedy
,
sortings
,
strings
1900
x12723
1650D
Twist the Permutation
brute force
,
constructive algorithms
,
implementation
,
math
1300
x12710
1364C
Ehab and Prefix MEXs
brute force
,
constructive algorithms
,
greedy
1600
x12689
1864C
Divisor Chain
bitmasks
,
constructive algorithms
,
math
,
number theory
1300
x12653
1775B
Gardener and the Array
bitmasks
,
constructive algorithms
1300
x12626
1506E
Restoring the Permutation
constructive algorithms
,
implementation
1500
x12623
1328D
Carousel
constructive algorithms
,
dp
,
graphs
,
greedy
,
math
1800
x12591
1927E
Klever Permutation
constructive algorithms
,
math
,
two pointers
1400
x12503
1421C
Palindromifier
constructive algorithms
,
strings
1400
x12499
11A
Increasing Sequence
constructive algorithms
,
implementation
,
math
900
x12452
1924A
Did We Get Everything Covered?
constructive algorithms
,
dp
,
greedy
,
shortest paths
,
strings
1500
x12430
679A
Bear and Prime 100
constructive algorithms
,
interactive
,
math
1400
x12402
1408A
Circle Coloring
constructive algorithms
800
x12398
1647C
Madoka and Childish Pranks
constructive algorithms
,
greedy
1300
x12392
1473C
No More Inversions
constructive algorithms
,
math
1500
x12380
1746C
Permutation Operations
constructive algorithms
,
greedy
,
implementation
,
math
1300
x12378
1942B
Bessie and MEX
constructive algorithms
,
math
1100
x12354
1902C
Insert and Equalize
brute force
,
constructive algorithms
,
greedy
,
math
,
number theory
1300
x12346
1242A
Tile Painting
constructive algorithms
,
math
,
number theory
1500
x12282
1474C
Array Destruction
brute force
,
constructive algorithms
,
data structures
,
greedy
,
implementation
,
sortings
1700
x12227
1800E1
Unforgivable Curse (easy version)
brute force
,
constructive algorithms
,
dsu
,
graphs
,
greedy
,
strings
1400
x12191
680A
Bear and Five Cards
constructive algorithms
,
implementation
800
x12186
1800E2
Unforgivable Curse (hard version)
brute force
,
constructive algorithms
,
dfs and similar
,
dsu
,
graphs
,
greedy
,
strings
1500
x12106
1889A
Qingshan Loves Strings 2
constructive algorithms
,
greedy
,
implementation
1300
x12090
1907D
Jumping Through Segments
binary search
,
constructive algorithms
1400
x12074
534A
Exam
constructive algorithms
,
implementation
,
math
1100
x12048
1684C
Column Swapping
brute force
,
constructive algorithms
,
greedy
,
implementation
,
sortings
1400
x12037
1523B
Lord of the Values
constructive algorithms
1100
x11972
1809C
Sum on Subarrays
constructive algorithms
,
greedy
,
math
1500
x11959
1583B
Omkar and Heavenly Tree
constructive algorithms
,
trees
1200
x11952
1081A
Definite Game
constructive algorithms
,
math
800
x11914
1360F
Spy-string
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
hashing
,
strings
1700
x11880
743C
Vladik and fractions
brute force
,
constructive algorithms
,
math
,
number theory
1500
x11862
1966B
Rectangle Filling
constructive algorithms
,
implementation
1100
x11841
1174C
Ehab and a Special Coloring Problem
constructive algorithms
,
number theory
1300
x11815
1873G
ABBC or BACB
constructive algorithms
,
greedy
1500
x11792
1555D
Say No to Palindromes
brute force
,
constructive algorithms
,
dp
,
strings
1600
x11778
1844D
Row Major
constructive algorithms
,
greedy
,
math
,
number theory
,
strings
1400
x11658
779C
Dishonest Sellers
constructive algorithms
,
greedy
,
sortings
1200
x11640
764B
Timofey and cubes
constructive algorithms
,
implementation
900
x11630
1221B
Knights
constructive algorithms
,
greedy
1100
x11629
1774B
Coloring
constructive algorithms
,
greedy
,
math
1500
x11625
1325D
Ehab the Xorcist
bitmasks
,
constructive algorithms
,
greedy
,
number theory
1700
x11604
1774C
Ice and Fire
constructive algorithms
,
dp
,
greedy
1300
x11584
1516C
Baby Ehab Partitions Again
bitmasks
,
constructive algorithms
,
dp
,
math
1700
x11547
1136B
Nastya Is Playing Computer Games
constructive algorithms
,
math
1000
x11538
1903B
StORage room
bitmasks
,
brute force
,
constructive algorithms
,
greedy
1200
x11469
1608B
Build the Permutation
constructive algorithms
,
greedy
1200
x11453
1407C
Chocolate Bunny
constructive algorithms
,
interactive
,
math
,
two pointers
1600
x11428
912B
New Year's Eve
bitmasks
,
constructive algorithms
,
number theory
1300
x11405
1839C
Insert Zero and Invert Prefix
constructive algorithms
1300
x11395
1305B
Kuroni and Simple Strings
constructive algorithms
,
greedy
,
strings
,
two pointers
1200
x11393
1891C
Smilo and Monsters
binary search
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
1500
x11388
1696C
Fishingprince Plays With Array
constructive algorithms
,
greedy
,
implementation
,
math
1400
x11321
1481C
Fence Painting
brute force
,
constructive algorithms
,
greedy
1600
x11314
546D
Soldier and Number Game
constructive algorithms
,
dp
,
math
,
number theory
1700
x11270
1166B
All the Vowels Please
constructive algorithms
,
math
,
number theory
1100
x11261
1868A
Fill in the Matrix
constructive algorithms
,
implementation
1300
x11213
225A
Dice Tower
constructive algorithms
,
greedy
1100
x11125
1511D
Min Cost String
brute force
,
constructive algorithms
,
graphs
,
greedy
,
strings
1600
x11075
1003B
Binary String Constructing
constructive algorithms
1300
x11067
1581B
Diameter of Graph
constructive algorithms
,
graphs
,
greedy
,
math
1200
x11053
1316B
String Modification
brute force
,
constructive algorithms
,
implementation
,
sortings
,
strings
1400
x10997
1099B
Squares and Segments
binary search
,
constructive algorithms
,
math
1100
x10993
1037A
Packets
constructive algorithms
,
greedy
,
math
1300
x10945
1396B
Stoned Game
brute force
,
constructive algorithms
,
games
,
greedy
1800
x10899
1742F
Smaller
constructive algorithms
,
greedy
,
strings
1500
x10867
441C
Valera and Tubes
constructive algorithms
,
dfs and similar
,
implementation
1500
x10862
743A
Vladik and flights
constructive algorithms
,
greedy
,
implementation
1200
x10856
1956C
Nene's Magical Matrix
constructive algorithms
,
greedy
,
math
1600
x10853
1799B
Equalize by Divide
brute force
,
constructive algorithms
,
greedy
,
math
1200
x10845
1215C
Swap Letters
constructive algorithms
,
greedy
1500
x10815
1065B
Vasya and Isolated Vertices
constructive algorithms
,
graphs
1300
x10769
1901C
Add, Divide and Floor
constructive algorithms
,
greedy
,
math
1400
x10755
484A
Bits
bitmasks
,
constructive algorithms
1700
x10729
1151B
Dima and a Bad XOR
bitmasks
,
brute force
,
constructive algorithms
,
dp
1600
x10701
1659B
Bit Flipping
bitmasks
,
constructive algorithms
,
greedy
,
strings
1300
x10643
1710A
Color the Picture
constructive algorithms
,
greedy
,
math
1500
x10622
264A
Escape from Stones
constructive algorithms
,
data structures
,
implementation
,
two pointers
1200
x10613
1867C
Salyg1n and the MEX Game
constructive algorithms
,
data structures
,
games
,
greedy
,
interactive
1300
x10607
1740C
Bricks and Bags
constructive algorithms
,
games
,
greedy
,
sortings
1400
x10596
1091B
New Year and the Treasure Geolocation
brute force
,
constructive algorithms
,
greedy
,
implementation
1200
x10551
1700C
Helping the Nature
constructive algorithms
,
data structures
,
greedy
1700
x10489
1903C
Theofanis' Nightmare
constructive algorithms
,
greedy
1400
x10465
1722G
Even-Odd XOR
bitmasks
,
constructive algorithms
,
greedy
1500
x10439
1393C
Pinkie Pie Eats Patty-cakes
constructive algorithms
,
greedy
,
math
,
sortings
1700
x10272
814A
An abandoned sentiment from past
constructive algorithms
,
greedy
,
implementation
,
sortings
900
x10262
1063A
Oh Those Palindromes
constructive algorithms
,
strings
1300
x10228
1814C
Search in Parallel
constructive algorithms
,
greedy
,
sortings
1500
x10218
1438C
Engineer Artem
2-sat
,
chinese remainder theorem
,
constructive algorithms
,
fft
,
flows
2000
x10192
1582D
Vupsen, Pupsen and 0
constructive algorithms
,
math
1600
x10154
932A
Palindromic Supersequence
constructive algorithms
800
x10139
625B
War of the Corporations
constructive algorithms
,
greedy
,
strings
1200
x10106
899A
Splitting in Teams
constructive algorithms
,
greedy
,
math
800
x10088
1144D
Equalize Them All
constructive algorithms
,
greedy
1400
x10069
777A
Shell Game
constructive algorithms
,
implementation
,
math
1000
x10052
801B
Valued Keys
constructive algorithms
,
greedy
,
strings
900
x10028
1909C
Heavy Intervals
constructive algorithms
,
data structures
,
dsu
,
greedy
,
math
,
sortings
1400
x10020
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Codeforces Round 946 (Div. 3)
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constructive algorithms
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