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#
Name
854B
Maxim Buys an Apartment
constructive algorithms
,
math
1200
x8116
854A
Fraction
brute force
,
constructive algorithms
,
math
800
x13365
853E
Lada Malina
data structures
,
geometry
3400
x64
853D
Michael and Charging Stations
binary search
,
dp
,
greedy
2400
x652
853C
Boredom
data structures
2100
x1387
853B
Jury Meeting
greedy
,
sortings
,
two pointers
1800
x2503
853A
Planning
greedy
1500
x5765
852I
Dating
brute force
,
dfs and similar
,
graphs
,
trees
2300
x554
852H
Bob and stages
dp
,
geometry
3000
x144
852G
Bathroom terminal
implementation
1700
x1263
852F
Product transformation
combinatorics
,
math
,
number theory
2200
x542
852E
Casinos and travel
dp
2100
x808
852D
Exploration plan
binary search
,
flows
,
graph matchings
,
shortest paths
2100
x945
852C
Property
greedy
,
sortings
2100
x374
852B
Neural Network country
dp
,
matrices
2000
x1369
852A
Digits
brute force
,
implementation
,
math
2500
x364
851B
Arpa and an exam about geometry
geometry
,
math
1400
x5418
851A
Arpa and a research in Mexican wave
implementation
,
math
800
x9494
850F
Rainbow Balls
math
2800
x587
850E
Random Elections
bitmasks
,
brute force
,
divide and conquer
,
fft
,
math
2800
x378
850D
Tournament Construction
constructive algorithms
,
dp
,
graphs
,
greedy
,
math
2800
x368
850C
Arpa and a game with Mojtaba
bitmasks
,
dp
,
games
2200
x1368
850B
Arpa and a list of numbers
implementation
,
number theory
2100
x1973
850A
Five Dimensional Points
brute force
,
geometry
,
math
1700
x2992
849B
Tell Your World
brute force
,
geometry
1600
x3476
849A
Odds and Ends
implementation
1000
x8906
848E
Days of Floral Colours
combinatorics
,
divide and conquer
,
dp
,
fft
,
math
3400
x200
848D
Shake It!
combinatorics
,
dp
,
flows
,
graphs
2900
x365
848C
Goodbye Souvenir
data structures
,
divide and conquer
2600
x1246
848B
Rooter's Song
constructive algorithms
,
data structures
,
geometry
,
implementation
,
sortings
,
two pointers
1900
x1813
848A
From Y to Y
constructive algorithms
1600
x5020
847M
Weather Tomorrow
implementation
,
math
1000
x6172
847L
Berland SU Computer Network
constructive algorithms
,
dfs and similar
,
graphs
,
hashing
,
trees
2400
x314
847K
Travel Cards
greedy
,
implementation
,
sortings
1800
x1482
847J
Students Initiation
binary search
,
flows
,
graphs
2400
x612
847I
Noise Level
dfs and similar
,
implementation
,
math
1900
x1500
847H
Load Testing
greedy
1600
x2366
847G
University Classes
implementation
900
x6503
847F
Berland Elections
greedy
,
sortings
2100
x848
847E
Packmen
binary search
,
dp
1800
x2714
847D
Dog Show
constructive algorithms
,
data structures
,
greedy
2200
x1012
847C
Sum of Nestings
constructive algorithms
1800
x2326
847B
Preparing for Merge Sort
binary search
,
data structures
1600
x4630
847A
Union of Doubly Linked Lists
implementation
1500
x3289
846F
Random Query
data structures
,
math
,
probabilities
,
two pointers
1800
x2199
846E
Chemistry in Berland
dfs and similar
,
greedy
,
trees
2300
x850
846D
Monitor
binary search
,
data structures
1900
x2341
846C
Four Segments
brute force
,
data structures
,
dp
1800
x2612
846B
Math Show
brute force
,
greedy
1800
x2450
846A
Curriculum Vitae
brute force
,
implementation
1500
x4150
845G
Shortest Path Problem?
dfs and similar
,
graphs
,
math
2300
x1490
845F
Guards In The Storehouse
bitmasks
,
dp
2500
x416
845E
Fire in the City
binary search
,
data structures
2400
x577
845D
Driving Test
data structures
,
dp
,
greedy
1800
x2327
845C
Two TVs
data structures
,
greedy
,
sortings
1500
x7857
845B
Luba And The Ticket
brute force
,
greedy
,
implementation
1600
x4930
845A
Chess Tourney
implementation
,
sortings
1100
x7626
844B
Rectangles
combinatorics
,
math
1300
x6977
844A
Diversity
greedy
,
implementation
,
strings
1000
x10354
843E
Maximum Flow
flows
,
graphs
3000
x280
843D
Dynamic Shortest Path
graphs
,
shortest paths
3400
x751
843C
Upgrading Tree
constructive algorithms
,
dfs and similar
,
graphs
,
math
,
trees
2600
x346
843B
Interactive LowerBound
brute force
,
interactive
,
probabilities
2000
x2132
843A
Sorting by Subsequences
dfs and similar
,
dsu
,
implementation
,
math
,
sortings
1400
x5522
842E
Nikita and game
binary search
,
dfs and similar
,
divide and conquer
,
graphs
,
trees
2800
x396
842D
Vitya and Strange Lesson
binary search
,
data structures
2000
x3209
842C
Ilya And The Tree
dfs and similar
,
graphs
,
math
,
number theory
,
trees
2000
x3410
842B
Gleb And Pizza
geometry
1100
x10000
842A
Kirill And The Game
brute force
,
two pointers
1200
x9955
841B
Godsend
games
,
math
1100
x11947
841A
Generous Kefa
brute force
,
implementation
900
x12914
840E
In a Trap
trees
3200
x432
840D
Destiny
data structures
,
probabilities
2500
x2758
840C
On the Bench
combinatorics
,
dp
2500
x1637
840B
Leha and another game about graph
constructive algorithms
,
data structures
,
dfs and similar
,
dp
,
graphs
2100
x2239
840A
Leha and Function
combinatorics
,
greedy
,
math
,
number theory
,
sortings
1300
x6953
839E
Mother of Dragons
brute force
,
graphs
,
math
,
meet-in-the-middle
2700
x883
839D
Winter is here
combinatorics
,
dp
,
math
,
number theory
2200
x2682
839C
Journey
dfs and similar
,
dp
,
graphs
,
probabilities
,
trees
1500
x15847
839B
Game of the Rows
brute force
,
greedy
,
implementation
1900
x3257
839A
Arya and Bran
implementation
900
x13927
838F
Expected Earnings
2800
x77
838E
Convex Countour
dp
2300
x322
838D
Airplane Arrangements
math
,
number theory
2700
x807
838C
Future Failure
dp
,
games
2800
x277
838B
Diverging Directions
data structures
,
dfs and similar
,
trees
2100
x694
838A
Binary Blocks
brute force
1400
x906
837G
Functions On The Segments
data structures
2500
x648
837F
Prefix Sums
binary search
,
brute force
,
combinatorics
,
math
,
matrices
2400
x734
837E
Vasya's Function
binary search
,
implementation
,
math
2100
x1506
837D
Round Subset
dp
,
math
2100
x4780
837C
Two Seals
brute force
,
implementation
1500
x3918
837B
Flag of Berland
brute force
,
implementation
1600
x3883
837A
Text Volume
implementation
800
x9240
835F
Roads in the Kingdom
dfs and similar
,
dp
,
graphs
,
trees
2500
x991
835E
The penguin's game
binary search
,
constructive algorithms
,
interactive
2400
x1123
835D
Palindromic characteristics
brute force
,
dp
,
hashing
,
strings
1900
x3887
835C
Star sky
dp
,
implementation
1600
x7626
835B
The number on the board
greedy
1100
x10895
835A
Key races
math
800
x19847
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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
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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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