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#
Name
1433B
Yet Another Bookshelf
greedy
,
implementation
800
x28022
1431H
Rogue-like Game
*special problem
,
brute force
,
greedy
,
two pointers
2600
x65
1431G
Number Deletion Game
*special problem
,
dp
,
games
,
greedy
2100
x139
1431F
Neural Network Problem
*special problem
,
binary search
,
greedy
2100
x155
1431D
Used Markers
*special problem
,
greedy
1500
x448
1430F
Realistic Gameplay
dp
,
greedy
2600
x864
1430E
String Reversal
data structures
,
greedy
,
strings
1900
x6232
1430D
String Deletion
binary search
,
data structures
,
greedy
,
two pointers
1700
x8680
1430C
Numbers on Whiteboard
constructive algorithms
,
data structures
,
greedy
,
implementation
,
math
1000
x23458
1430B
Barrels
greedy
,
implementation
,
sortings
800
x19172
1428G2
Lucky Numbers (Hard Version)
dp
,
greedy
3000
x614
1428G1
Lucky Numbers (Easy Version)
dp
,
greedy
2900
x552
1428E
Carrots for Rabbits
binary search
,
data structures
,
greedy
,
math
,
sortings
2200
x3527
1428D
Bouncing Boomerangs
constructive algorithms
,
greedy
,
implementation
1900
x4420
1428C
ABBB
brute force
,
data structures
,
greedy
,
strings
1100
x19790
1427F
Boring Card Game
data structures
,
greedy
,
trees
3200
x309
1427B
Chess Cheater
greedy
,
implementation
,
sortings
1400
x10715
1426E
Rock, Paper, Scissors
brute force
,
constructive algorithms
,
flows
,
greedy
,
math
1800
x7250
1426D
Non-zero Segments
constructive algorithms
,
data structures
,
greedy
,
sortings
1500
x15561
1425E
Excitation of Atoms
greedy
,
implementation
2200
x910
1425A
Arena of Greed
games
,
greedy
1400
x6378
1422E
Minlexes
dp
,
greedy
,
implementation
,
strings
2700
x733
1422B
Nice Matrix
greedy
,
implementation
,
math
1300
x14189
1421D
Hexagons
brute force
,
constructive algorithms
,
greedy
,
implementation
,
math
,
shortest paths
1900
x4056
1421A
XORwice
bitmasks
,
greedy
,
math
800
x27429
1420E
Battle Lemmings
dp
,
greedy
2500
x850
1420C2
Pokémon Army (hard version)
data structures
,
divide and conquer
,
dp
,
greedy
,
implementation
2100
x4520
1420C1
Pokémon Army (easy version)
constructive algorithms
,
dp
,
greedy
1300
x17088
1419D2
Sage's Birthday (hard version)
binary search
,
brute force
,
constructive algorithms
,
greedy
,
sortings
,
two pointers
1500
x14857
1419D1
Sage's Birthday (easy version)
binary search
,
constructive algorithms
,
greedy
,
sortings
1000
x23701
1419C
Killjoy
greedy
,
implementation
,
math
1500
x14973
1419B
Stairs
brute force
,
constructive algorithms
,
greedy
,
implementation
,
math
1200
x15980
1419A
Digit Game
games
,
greedy
,
implementation
900
x19290
1418C
Mortal Kombat Tower
dp
,
graphs
,
greedy
,
shortest paths
1500
x18384
1418B
Negative Prefixes
greedy
,
sortings
1300
x16319
1417B
Two Arrays
greedy
,
math
,
sortings
1100
x14342
1417A
Copy-paste
greedy
,
math
800
x18059
1416F
Showing Off
flows
,
graph matchings
,
greedy
,
implementation
3300
x383
1416E
Split
binary search
,
data structures
,
dp
,
greedy
3200
x279
1416C
XOR Inverse
bitmasks
,
data structures
,
divide and conquer
,
dp
,
greedy
,
math
,
sortings
,
strings
,
trees
2000
x4199
1416B
Make Them Equal
constructive algorithms
,
greedy
,
math
2000
x5921
1415E
New Game Plus!
constructive algorithms
,
greedy
,
math
2200
x2593
1415B
Repainting Street
brute force
,
brute force
,
greedy
1100
x12015
1413E
Solo mid Oracle
greedy
,
math
,
ternary search
2100
x1922
1413D
Shurikens
data structures
,
greedy
,
implementation
1700
x6352
1411F
The Thorny Path
greedy
,
math
3000
x320
1411E
Poman Numbers
bitmasks
,
greedy
,
math
,
strings
2300
x1558
1411D
Grime Zoo
brute force
,
greedy
,
implementation
,
strings
2100
x2433
1409D
Decrease the Sum of Digits
greedy
,
math
1500
x18764
1409B
Minimum Product
brute force
,
greedy
,
math
1100
x28328
1409A
Yet Another Two Integers Problem
greedy
,
math
800
x62948
1408H
Rainbow Triples
binary search
,
data structures
,
flows
,
greedy
3300
x353
1408E
Avoid Rainbow Cycles
data structures
,
dsu
,
graphs
,
greedy
,
sortings
,
trees
2400
x1883
1408B
Arrays Sum
constructive algorithms
,
greedy
,
math
1400
x9777
1407E
Egor in the Republic of Dagestan
constructive algorithms
,
dfs and similar
,
dp
,
graphs
,
greedy
,
shortest paths
2500
x1607
1407B
Big Vova
brute force
,
greedy
,
math
,
number theory
1300
x16707
1406D
Three Sequences
constructive algorithms
,
data structures
,
greedy
,
math
2200
x3386
1406B
Maximum Product
brute force
,
dp
,
greedy
,
implementation
,
sortings
1200
x22098
1406A
Subset Mex
greedy
,
implementation
,
math
900
x20991
1404C
Fixed Point Removal
binary search
,
constructive algorithms
,
data structures
,
greedy
,
two pointers
2300
x2507
1401D
Maximum Distributed Tree
dfs and similar
,
dp
,
greedy
,
implementation
,
math
,
number theory
,
sortings
,
trees
1800
x8881
1401B
Ternary Sequence
constructive algorithms
,
greedy
,
math
1100
x20751
1400E
Clear the Multiset
data structures
,
divide and conquer
,
dp
,
greedy
2200
x5037
1400C
Binary String Reconstruction
2-sat
,
brute force
,
constructive algorithms
,
greedy
1500
x16809
1400B
RPG Protagonist
brute force
,
greedy
,
math
1700
x10848
1399E2
Weights Division (hard version)
binary search
,
dfs and similar
,
greedy
,
sortings
,
trees
,
two pointers
2200
x2224
1399E1
Weights Division (easy version)
data structures
,
dfs and similar
,
greedy
,
trees
2000
x5700
1399D
Binary String To Subsequences
constructive algorithms
,
data structures
,
greedy
,
implementation
1500
x17745
1399C
Boats Competition
brute force
,
greedy
,
two pointers
1200
x27880
1399B
Gifts Fixing
greedy
800
x42498
1399A
Remove Smallest
greedy
,
sortings
800
x63193
1398F
Controversial Rounds
binary search
,
data structures
,
dp
,
greedy
,
two pointers
2500
x1071
1398E
Two Types of Spells
binary search
,
data structures
,
greedy
,
implementation
,
math
,
sortings
2200
x2182
1398D
Colored Rectangles
dp
,
greedy
,
sortings
1800
x11043
1398B
Substring Removal Game
games
,
greedy
,
sortings
800
x24128
1397A
Juggling Letters
greedy
,
strings
800
x28165
1396C
Monster Invaders
dp
,
greedy
,
implementation
2300
x2397
1396B
Stoned Game
brute force
,
constructive algorithms
,
games
,
greedy
1800
x10939
1396A
Multiples of Length
constructive algorithms
,
greedy
,
number theory
1600
x15005
1395C
Boboniu and Bit Operations
bitmasks
,
brute force
,
dp
,
greedy
1600
x13569
1394D
Boboniu and Jianghu
dp
,
greedy
,
sortings
,
trees
2800
x810
1394A
Boboniu Chats with Du
dp
,
greedy
,
sortings
,
two pointers
1800
x6472
1393C
Pinkie Pie Eats Patty-cakes
constructive algorithms
,
greedy
,
math
,
sortings
1700
x10278
1393B
Applejack and Storages
constructive algorithms
,
data structures
,
greedy
,
implementation
1400
x16291
1393A
Rainbow Dash, Fluttershy and Chess Coloring
greedy
,
math
800
x20233
1392F
Omkar and Landslide
binary search
,
constructive algorithms
,
data structures
,
greedy
,
math
2400
x1946
1392D
Omkar and Bed Wars
dp
,
greedy
1700
x8470
1392C
Omkar and Waterslide
greedy
,
implementation
1200
x18339
1392A
Omkar and Password
greedy
,
math
800
x20210
1391E
Pairs of Pairs
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
trees
2600
x1442
1391D
505
bitmasks
,
brute force
,
constructive algorithms
,
dp
,
greedy
,
implementation
2000
x4946
1391B
Fix You
brute force
,
greedy
,
implementation
800
x26154
1389D
Segment Intersections
brute force
,
greedy
,
implementation
,
math
2100
x4037
1389C
Good String
brute force
,
dp
,
greedy
,
two pointers
1500
x18439
1389B
Array Walk
brute force
,
dp
,
greedy
1600
x15891
1389A
LCM Problem
constructive algorithms
,
greedy
,
math
,
number theory
800
x38704
1388D
Captain Flint and Treasure
data structures
,
dfs and similar
,
graphs
,
greedy
,
implementation
,
trees
2000
x6142
1388C
Uncle Bogdan and Country Happiness
dfs and similar
,
greedy
,
math
,
trees
1800
x9382
1388B
Captain Flint and a Long Voyage
greedy
,
math
1000
x21933
1388A
Captain Flint and Crew Recruitment
brute force
,
greedy
,
math
,
number theory
800
x24572
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greedy
combine-tags-by-or
*combine tags by OR
2-sat
binary search
bitmasks
brute force
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constructive algorithms
data structures
dfs and similar
divide and conquer
dp
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graph matchings
graphs
greedy
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implementation
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strings
ternary search
trees
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