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Before contest
Codeforces Round #956 (Div. 2) and ByteRace 2024
28:34:11
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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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Problems
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Status
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Custom test
Problems
#
Name
215B
Olympic Medal
greedy
,
math
1300
x5432
215A
Bicycle Chain
brute force
,
implementation
900
x14184
214B
Hometask
brute force
,
constructive algorithms
,
greedy
,
math
1600
x4920
214A
System of Equations
brute force
800
x34265
213E
Two Permutations
data structures
,
hashing
,
strings
2700
x777
213D
Stars
constructive algorithms
,
geometry
2300
x335
213C
Relay Race
dp
2000
x2773
213B
Numbers
combinatorics
,
dp
1900
x1669
213A
Game
dfs and similar
,
greedy
1700
x1695
212E
IT Restaurants
dfs and similar
,
dp
,
trees
1500
x1688
212D
Cutting a Fence
binary search
,
data structures
,
dsu
2500
x461
212C
Cowboys
combinatorics
,
dp
,
math
2100
x377
212B
Polycarpus is Looking for Good Substrings
bitmasks
,
hashing
,
implementation
2300
x329
212A
Privatization
flows
,
graphs
3000
x195
209C
Trails and Glades
constructive algorithms
,
dsu
,
graphs
,
greedy
2400
x718
209B
Pixels
constructive algorithms
,
math
2100
x363
209A
Multicolored Marbles
dp
,
math
1600
x2280
208E
Blood Cousins
binary search
,
data structures
,
dfs and similar
,
trees
2100
x6263
208D
Prizes, Prizes, more Prizes
implementation
1200
x7518
208C
Police Station
dp
,
graphs
,
shortest paths
1900
x1795
208B
Solitaire
dfs and similar
,
dp
1900
x1347
208A
Dubstep
strings
900
x85485
207D9
The Beaver's Problem - 3
1800
x84
207D8
The Beaver's Problem - 3
2300
x89
207D7
The Beaver's Problem - 3
1600
x97
207D6
The Beaver's Problem - 3
2100
x80
207D5
The Beaver's Problem - 3
1600
x138
207D4
The Beaver's Problem - 3
2100
x149
207D3
The Beaver's Problem - 3
2000
x135
207D2
The Beaver's Problem - 3
2000
x104
207D10
The Beaver's Problem - 3
2100
x82
207D1
The Beaver's Problem - 3
1800
x117
207C3
Game with Two Trees
data structures
2700
x120
207C2
Game with Two Trees
2200
x80
207C1
Game with Two Trees
2100
x103
207B3
Military Trainings
1700
x163
207B2
Military Trainings
1900
x180
207B1
Military Trainings
1600
x262
207A3
Beaver's Calculator 1.0
greedy
2000
x206
207A2
Beaver's Calculator 1.0
greedy
1800
x227
207A1
Beaver's Calculator 1.0
greedy
1600
x278
205B
Little Elephant and Sorting
brute force
,
greedy
1400
x5971
205A
Little Elephant and Rozdil
brute force
,
implementation
900
x21885
204E
Little Elephant and Strings
data structures
,
implementation
,
string suffix structures
,
two pointers
2800
x1125
204D
Little Elephant and Retro Strings
dp
2400
x444
204C
Little Elephant and Furik and Rubik
math
,
probabilities
2000
x1086
204B
Little Elephant and Cards
binary search
,
data structures
1500
x5077
204A
Little Elephant and Interval
binary search
,
combinatorics
,
dp
1500
x5594
203E
Transportation
greedy
,
sortings
,
two pointers
2300
x279
203D
Hit Ball
geometry
,
implementation
,
math
1700
x1405
203C
Photographer
greedy
,
sortings
1400
x5610
203B
Game on Paper
brute force
,
implementation
1300
x2563
203A
Two Problems
brute force
,
implementation
1200
x4122
202B
Brand New Easy Problem
brute force
1700
x811
202A
LLPS
binary search
,
bitmasks
,
brute force
,
greedy
,
implementation
,
strings
800
x16232
201E
Thoroughly Bureaucratic Organization
binary search
,
combinatorics
2600
x405
201D
Brand New Problem
bitmasks
,
brute force
,
dp
2600
x390
201C
Fragile Bridges
dp
2000
x1300
201B
Guess That Car!
math
,
ternary search
1800
x1256
201A
Clear Symmetry
constructive algorithms
,
dp
,
math
1700
x2978
200E
Tractor College
implementation
,
math
,
number theory
,
ternary search
2400
x339
200D
Programming Language
binary search
,
brute force
,
expression parsing
,
implementation
1800
x900
200C
Football Championship
brute force
,
implementation
1800
x1038
200B
Drinks
implementation
,
math
800
x110710
200A
Cinema
brute force
,
data structures
2400
x674
199B
Special Olympics
geometry
1900
x786
199A
Hexadecimal's theorem
brute force
,
constructive algorithms
,
implementation
,
number theory
900
x25636
198E
Gripping Story
binary search
,
data structures
,
sortings
2400
x405
198D
Cube Snake
constructive algorithms
2700
x105
198C
Delivering Carcinogen
binary search
,
geometry
2400
x370
198B
Jumping on Walls
shortest paths
1400
x4150
198A
About Bacteria
implementation
,
math
1700
x3125
197B
Limit
math
1400
x4574
197A
Plate Game
constructive algorithms
,
games
,
math
1600
x6112
196E
Opening Portals
dsu
,
graphs
,
shortest paths
2600
x840
196D
The Next Good String
data structures
,
greedy
,
hashing
,
strings
2800
x523
196C
Paint Tree
constructive algorithms
,
divide and conquer
,
geometry
,
sortings
,
trees
2200
x798
196B
Infinite Maze
dfs and similar
,
graphs
2000
x2139
196A
Lexicographically Maximum Subsequence
greedy
,
strings
1100
x5326
195E
Building Forest
data structures
,
dsu
,
graphs
2000
x692
195D
Analyzing Polyline
geometry
,
math
,
sortings
1900
x1011
195C
Try and Catch
expression parsing
,
implementation
1800
x1128
195B
After Training
data structures
,
implementation
,
math
1300
x5145
195A
Let's Watch Football
binary search
,
brute force
,
math
1000
x8637
194B
Square
math
1200
x3460
194A
Exams
implementation
,
math
900
x9725
193E
Fibonacci Number
brute force
,
math
,
matrices
2900
x326
193D
Two Segments
data structures
2900
x389
193C
Hamming Distance
constructive algorithms
,
greedy
,
math
,
matrices
2400
x503
193B
Xor
brute force
2000
x996
193A
Cutting Figure
constructive algorithms
,
graphs
,
trees
1700
x3880
192B
Walking in the Rain
brute force
,
implementation
1100
x6187
192A
Funky Numbers
binary search
,
brute force
,
implementation
1300
x10216
191E
Thwarting Demonstrations
binary search
,
data structures
,
trees
2200
x817
191D
Metro Scheme
graphs
,
greedy
2700
x349
191C
Fools and Roads
data structures
,
dfs and similar
,
trees
1900
x6914
191B
Demonstration
greedy
1700
x999
191A
Dynasty Puzzles
dp
1500
x3864
190E
Counter Attack
data structures
,
dsu
,
graphs
,
hashing
,
sortings
2100
x1462
190D
Non-Secret Cypher
two pointers
1900
x2252
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