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Name
29C
Mail Stamps
data structures
,
dfs and similar
,
graphs
,
implementation
1700
x4569
29B
Traffic Lights
implementation
1500
x2836
29A
Spit Problem
brute force
1000
x6841
28E
DravDe saves the world
geometry
,
math
2800
x85
28D
Don't fear, DravDe is kind
binary search
,
data structures
,
dp
,
hashing
2400
x586
28C
Bath Queue
combinatorics
,
dp
,
probabilities
2200
x985
28B
pSort
dfs and similar
,
dsu
,
graphs
1600
x4419
28A
Bender Problem
implementation
1600
x769
27E
Number With The Given Amount Of Divisors
brute force
,
dp
,
number theory
2000
x4000
27D
Ring Road 2
2-sat
,
dfs and similar
,
dsu
,
graphs
2200
x2368
27C
Unordered Subsequence
constructive algorithms
,
greedy
1900
x2696
27B
Tournament
bitmasks
,
brute force
,
dfs and similar
,
greedy
1300
x5155
27A
Next Test
implementation
,
sortings
1200
x19368
26E
Multithreading
constructive algorithms
2400
x362
26D
Tickets
combinatorics
,
math
,
probabilities
2400
x755
26C
Parquet
combinatorics
,
constructive algorithms
,
greedy
,
implementation
2000
x824
26B
Regular Bracket Sequence
greedy
1400
x17578
26A
Almost Prime
number theory
900
x28732
25E
Test
hashing
,
strings
2200
x2199
25D
Roads not only in Berland
dsu
,
graphs
,
trees
1900
x10412
25C
Roads in Berland
graphs
,
shortest paths
1900
x5889
25B
Phone numbers
implementation
1100
x9339
25A
IQ test
brute force
1300
x81476
24E
Berland collider
binary search
2300
x859
24D
Broken robot
dp
,
math
,
probabilities
2400
x1804
24C
Sequence of points
geometry
,
implementation
,
math
1800
x1215
24B
F1 Champions
implementation
1500
x1715
24A
Ring road
graphs
1400
x4784
23E
Tree
dp
2500
x589
23D
Tetragon
geometry
,
math
2600
x325
23C
Oranges and Apples
constructive algorithms
,
sortings
2500
x1357
23B
Party
constructive algorithms
,
graphs
,
math
1600
x3201
23A
You're Given a String...
brute force
,
greedy
1200
x5085
22E
Scheme
dfs and similar
,
graphs
,
trees
2300
x1550
22D
Segments
greedy
,
sortings
1900
x2621
22C
System Administrator
graphs
1700
x2956
22B
Bargaining Table
brute force
,
dp
1500
x4082
22A
Second Order Statistics
brute force
800
x20955
21D
Traveling Graph
bitmasks
,
graph matchings
,
graphs
2400
x796
21C
Stripe 2
binary search
,
dp
,
sortings
2000
x2023
21B
Intersection
implementation
,
math
2000
x1303
21A
Jabber ID
implementation
,
strings
1900
x1784
20C
Dijkstra?
graphs
,
shortest paths
1900
x30024
20B
Equation
math
2000
x3659
20A
BerOS file system
implementation
1700
x5952
19E
Fairy
dfs and similar
,
divide and conquer
,
dsu
2900
x1620
19D
Points
data structures
2800
x2122
19C
Deletion of Repeats
greedy
,
hashing
,
string suffix structures
2200
x1048
19B
Checkout Assistant
dp
1900
x4442
19A
World Football Cup
implementation
1400
x2627
18E
Flag 2
dp
2000
x1022
18D
Seller Bob
brute force
,
dp
,
greedy
2000
x1032
18C
Stripe
data structures
,
implementation
1200
x12501
18B
Platforms
brute force
,
math
1700
x2064
18A
Triangle
brute force
,
geometry
1500
x5706
17E
Palisection
strings
2900
x1512
17D
Notepad
number theory
2400
x1038
17C
Balance
dp
2500
x818
17B
Hierarchy
dfs and similar
,
dsu
,
greedy
,
shortest paths
1500
x4483
17A
Noldbach problem
brute force
,
math
,
number theory
1000
x15141
16E
Fish
bitmasks
,
dp
,
probabilities
1900
x4665
16D
Logging
implementation
,
strings
1900
x1512
16C
Monitor
binary search
,
number theory
1800
x4520
16B
Burglar and Matches
greedy
,
implementation
,
sortings
900
x16937
16A
Flag
implementation
800
x13612
15E
Triangles
combinatorics
,
dp
2600
x557
15D
Map
data structures
,
implementation
,
sortings
2500
x717
15C
Industrial Nim
games
2000
x2164
15B
Laser
math
1800
x1298
15A
Cottage Village
implementation
,
sortings
1200
x3614
14E
Camels
dp
1900
x1620
14D
Two Paths
dfs and similar
,
dp
,
graphs
,
shortest paths
,
trees
,
two pointers
1900
x4317
14C
Four Segments
brute force
,
constructive algorithms
,
geometry
,
implementation
,
math
1700
x3096
14B
Young Photographer
implementation
1000
x6677
14A
Letter
implementation
800
x10075
13E
Holes
data structures
,
dsu
2700
x5390
13D
Triangles
dp
,
geometry
2600
x595
13C
Sequence
dp
,
sortings
2200
x4132
13B
Letter A
geometry
,
implementation
2000
x834
13A
Numbers
implementation
,
math
1000
x7376
12E
Start of the session
constructive algorithms
2100
x1163
12D
Ball
data structures
,
sortings
2400
x2006
12C
Fruits
greedy
,
implementation
,
sortings
1100
x5774
12B
Correct Solution?
implementation
,
sortings
1100
x8023
12A
Super Agent
implementation
800
x12411
11E
Forward, march!
binary search
,
dp
,
greedy
2800
x346
11D
A Simple Task
bitmasks
,
dp
,
graphs
2200
x4476
11C
How Many Squares?
implementation
2200
x590
11B
Jumping Jack
math
1600
x4335
11A
Increasing Sequence
constructive algorithms
,
implementation
,
math
900
x12449
10E
Greedy Change
constructive algorithms
2600
x803
10D
LCIS
dp
2800
x4062
10C
Digital Root
number theory
2000
x1392
10B
Cinema Cashier
dp
,
implementation
1500
x1720
10A
Power Consumption Calculation
implementation
900
x6686
9E
Interestring graph and Apples
dfs and similar
,
dsu
,
graphs
2300
x989
9D
How many trees?
combinatorics
,
divide and conquer
,
dp
1900
x3674
9C
Hexadecimal's Numbers
brute force
,
implementation
,
math
1200
x12392
9B
Running Student
brute force
,
geometry
,
implementation
1200
x5206
9A
Die Roll
math
,
probabilities
800
x52770
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binary search
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divide and conquer
dp
dsu
expression parsing
fft
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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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