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#
Name
1875C
Jellyfish and Green Apple
bitmasks
,
greedy
,
math
,
number theory
1400
x10722
1875A
Jellyfish and Undertale
brute force
,
greedy
900
x21487
1874G
Jellyfish and Inscryption
dp
3500
x70
1874F
Jellyfish and OEIS
dp
3500
x152
1874E
Jellyfish and Hack
dp
,
math
3000
x265
1874D
Jellyfish and Miku
divide and conquer
,
dp
,
math
,
probabilities
2800
x643
1874C
Jellyfish and EVA
dp
,
graphs
,
greedy
,
math
,
probabilities
2300
x1493
1874B
Jellyfish and Math
bitmasks
,
brute force
,
dfs and similar
,
dp
,
graphs
,
shortest paths
2400
x1054
1874A
Jellyfish and Game
brute force
,
games
,
greedy
,
implementation
1200
x15697
1873H
Mad City
dfs and similar
,
dsu
,
games
,
graphs
,
shortest paths
,
trees
1700
x6512
1873G
ABBC or BACB
constructive algorithms
,
greedy
1500
x11572
1873F
Money Trees
binary search
,
greedy
,
math
,
two pointers
1300
x13685
1873E
Building an Aquarium
binary search
,
sortings
1100
x22629
1873D
1D Eraser
greedy
,
implementation
,
two pointers
800
x32363
1873C
Target Practice
implementation
,
math
800
x34823
1873B
Good Kid
brute force
,
greedy
,
math
800
x43799
1873A
Short Sort
brute force
,
implementation
800
x48260
1872G
Replace With Product
brute force
,
greedy
,
math
2000
x3943
1872F
Selling a Menagerie
dfs and similar
,
dsu
,
graphs
,
implementation
,
math
1800
x5749
1872E
Data Structures Fan
binary search
,
bitmasks
,
data structures
,
dp
1500
x11793
1872D
Plus Minus Permutation
math
1200
x20748
1872C
Non-coprime Split
math
,
number theory
1100
x21837
1872B
The Corridor or There and Back Again
greedy
,
implementation
900
x26476
1872A
Two Vessels
brute force
,
greedy
,
math
800
x37114
1870H
Standard Graph Problem
data structures
,
graphs
,
greedy
,
trees
3500
x77
1870G
MEXanization
data structures
3300
x201
1870F
Lazy Numbers
binary search
,
math
2900
x462
1870E
Another MEX Problem
bitmasks
,
brute force
,
dp
,
shortest paths
2300
x2191
1870D
Prefix Purchase
greedy
,
implementation
,
sortings
1800
x6374
1870C
Colorful Table
binary search
,
data structures
,
dp
,
implementation
,
math
,
two pointers
1300
x10675
1870B
Friendly Arrays
bitmasks
,
greedy
,
math
1200
x13276
1870A
MEXanized Array
constructive algorithms
,
greedy
,
math
800
x18436
1869B
2D Traveling
geometry
,
math
,
shortest paths
,
sortings
1100
x14274
1869A
Make It Zero
constructive algorithms
900
x18368
1868F
LIS?
data structures
,
greedy
,
implementation
3500
x68
1868E
Min-Sum-Max
constructive algorithms
,
dp
,
greedy
3500
x72
1868D
Flower-like Pseudotree
constructive algorithms
,
graphs
,
greedy
,
implementation
,
trees
3000
x244
1868C
Travel Plan
combinatorics
,
dp
,
implementation
,
math
,
trees
2400
x1063
1868B2
Candy Party (Hard Version)
bitmasks
,
constructive algorithms
,
dp
,
greedy
,
implementation
,
math
2100
x2261
1868B1
Candy Party (Easy Version)
bitmasks
,
constructive algorithms
,
graphs
,
greedy
,
implementation
,
math
1700
x6404
1868A
Fill in the Matrix
constructive algorithms
,
implementation
1300
x11103
1867F
Most Different Tree
brute force
,
constructive algorithms
,
dfs and similar
,
greedy
,
hashing
2700
x399
1867E2
Salyg1n and Array (hard version)
constructive algorithms
,
interactive
2200
x2962
1867E1
Salyg1n and Array (simple version)
constructive algorithms
,
interactive
,
math
2000
x3491
1867D
Cyclic Operations
brute force
,
constructive algorithms
,
dfs and similar
,
graphs
,
greedy
,
implementation
1800
x5299
1867C
Salyg1n and the MEX Game
constructive algorithms
,
data structures
,
games
,
greedy
,
interactive
1300
x10491
1867B
XOR Palindromes
bitmasks
,
constructive algorithms
,
strings
1100
x15731
1867A
green_gold_dog, array and permutation
constructive algorithms
,
sortings
800
x19137
1866M
Mighty Rock Tower
brute force
,
combinatorics
,
dp
,
math
,
probabilities
2400
x684
1866L
Lihmuf Balling
binary search
,
brute force
,
math
2400
x650
1866K
Keen Tree Calculation
binary search
,
data structures
,
dp
,
geometry
,
graphs
,
implementation
,
trees
2500
x403
1866J
Jackets and Packets
dp
2800
x266
1866I
Imagination Castle
dp
,
games
,
two pointers
2300
x666
1866H
Happy Sets
combinatorics
2100
x1518
1866G
Grouped Carriages
binary search
,
data structures
,
dp
,
flows
,
greedy
2100
x1497
1866F
Freak Joker Process
binary search
,
data structures
,
sortings
3100
x112
1866E
Elevators of Tamem
dp
2700
x265
1866D
Digital Wallet
dp
,
greedy
2300
x1178
1866C
Completely Searching for Inversions
dfs and similar
,
dp
,
graphs
1900
x2829
1866B
Battling with Numbers
combinatorics
,
math
,
number theory
1400
x7163
1866A
Ambitious Kid
math
800
x17705
1864I
Future Dominators
graphs
,
greedy
3500
x82
1864H
Asterism Stream
dp
,
math
,
matrices
3200
x267
1864G
Magic Square
combinatorics
,
constructive algorithms
,
implementation
3100
x251
1864F
Exotic Queries
data structures
,
implementation
,
sortings
2300
x1306
1864E
Guess Game
bitmasks
,
data structures
,
games
,
math
,
probabilities
,
sortings
,
strings
,
trees
2100
x2459
1864D
Matrix Cascade
brute force
,
constructive algorithms
,
data structures
,
dp
,
greedy
,
math
1700
x6305
1864C
Divisor Chain
bitmasks
,
constructive algorithms
,
math
,
number theory
1300
x12534
1864B
Swap and Reverse
constructive algorithms
,
greedy
,
sortings
,
strings
1100
x14717
1864A
Increasing and Decreasing
constructive algorithms
,
greedy
,
implementation
,
math
800
x19728
1863I
Redundant Routes
constructive algorithms
,
dp
,
trees
3500
x69
1863H
Goldberg Machine 3
dp
,
trees
3500
x71
1863G
Swaps
combinatorics
,
dp
,
graphs
,
math
2800
x553
1863F
Divide, XOR, and Conquer
bitmasks
,
dp
,
math
2600
x1024
1863E
Speedrun
brute force
,
dfs and similar
,
dp
,
graphs
,
greedy
,
math
,
sortings
,
two pointers
2100
x2599
1863D
Two-Colored Dominoes
constructive algorithms
,
greedy
1400
x8893
1863C
MEX Repetition
implementation
,
math
1100
x13313
1863B
Split Sort
greedy
,
math
,
sortings
1100
x14525
1863A
Channel
greedy
,
implementation
800
x17400
1862G
The Great Equalizer
binary search
,
data structures
,
math
,
sortings
2000
x2628
1862F
Magic Will Save the World
binary search
,
bitmasks
,
brute force
,
dp
1800
x5608
1862E
Kolya and Movie Theatre
constructive algorithms
,
data structures
,
greedy
1600
x9505
1862D
Ice Cream Balls
binary search
,
combinatorics
,
constructive algorithms
,
math
1300
x15927
1862C
Flower City Fence
binary search
,
data structures
,
implementation
,
sortings
1100
x19550
1862B
Sequence Game
constructive algorithms
800
x28410
1862A
Gift Carpet
dp
,
greedy
,
implementation
,
strings
800
x30561
1861F
Four Suits
binary search
,
bitmasks
,
flows
,
greedy
3200
x146
1861E
Non-Intersecting Subpermutations
combinatorics
,
dp
,
implementation
,
math
2300
x1599
1861D
Sorting By Multiplication
dp
,
greedy
1800
x6206
1861C
Queries for the Array
data structures
,
dfs and similar
,
implementation
,
strings
,
trees
1600
x9406
1861B
Two Binary Strings
constructive algorithms
,
dp
,
greedy
1000
x19982
1861A
Prime Deletion
constructive algorithms
,
math
800
x23026
1860F
Evaluate RBS
data structures
,
geometry
,
implementation
,
math
,
sortings
2900
x262
1860E
Fast Travel Text Editor
data structures
,
dfs and similar
,
graphs
,
shortest paths
2400
x1291
1860D
Balanced String
dp
2200
x2761
1860C
Game on Permutation
data structures
,
dp
,
games
,
greedy
1400
x12338
1860B
Fancy Coins
binary search
,
brute force
,
greedy
,
math
1200
x15935
1860A
Not a Substring
constructive algorithms
,
strings
900
x20723
1859F
Teleportation in Byteland
data structures
,
dfs and similar
,
divide and conquer
,
graphs
,
shortest paths
,
trees
3200
x365
1859E
Maximum Monogonosity
brute force
,
dp
,
math
2500
x1653
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Before contest
Codeforces Round 941 (Div. 1)
36:56:00
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Before contest
Codeforces Round 941 (Div. 2)
36:55:59
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combine-tags-by-or
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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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