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Problems
#
Name
191D
Metro Scheme
graphs
,
greedy
2700
x430
191C
Fools and Roads
data structures
,
dfs and similar
,
trees
1900
x10334
191B
Demonstration
greedy
1700
x1111
191A
Dynasty Puzzles
dp
1500
x4728
190E
Counter Attack
data structures
,
dsu
,
graphs
,
hashing
,
sortings
2100
x1859
190D
Non-Secret Cypher
two pointers
1900
x2730
190C
STL
dfs and similar
1500
x3298
190B
Surrounded
geometry
1800
x3145
190A
Vasya and the Bus
greedy
,
math
1100
x6399
189B
Counting Rhombi
brute force
,
math
1300
x4287
189A
Cut Ribbon
brute force
,
dp
1300
x87242
188H
Stack
*special problem
,
expression parsing
,
implementation
1800
x766
188G
Array Sorting
*special problem
,
implementation
1600
x365
188F
Binary Notation
*special problem
,
implementation
1400
x353
188E
HQ9+
*special problem
,
implementation
1400
x561
188D
Asterisks
*special problem
,
implementation
1100
x762
188C
LCM
*special problem
,
implementation
,
math
1400
x536
188B
A + Reverse B
*special problem
,
implementation
1300
x819
188A
Hexagonal Numbers
*special problem
1100
x873
187E
Heaven Tour
data structures
,
greedy
2900
x125
187D
BRT Contract
data structures
2800
x633
187C
Weak Memory
dfs and similar
,
dsu
2000
x1659
187B
AlgoRace
dp
,
shortest paths
1800
x2421
187A
Permutations
greedy
1500
x3100
186B
Growing Mushrooms
greedy
,
sortings
1200
x6291
186A
Comparing Strings
implementation
,
strings
1100
x18932
185E
Soap Time! - 2
binary search
,
data structures
3000
x273
185D
Visit of the Great
math
,
number theory
2600
x554
185C
Clever Fat Rat
dp
2500
x153
185B
Mushroom Scientists
math
,
ternary search
1800
x1812
185A
Plant
math
1300
x6729
183E
Candy Shop
greedy
2900
x237
183D
T-shirt
dp
,
greedy
,
probabilities
2700
x534
183C
Cyclic Coloring
dfs and similar
2200
x788
183B
Zoo
brute force
,
geometry
1700
x867
183A
Headquarters
constructive algorithms
,
math
1700
x677
182E
Wooden Fence
dp
1800
x1746
182D
Common Divisors
brute force
,
hashing
,
implementation
,
math
,
strings
1400
x9574
182C
Optimal Sum
data structures
,
greedy
2000
x909
182B
Vasya's Calendar
implementation
1000
x7486
182A
Battlefield
geometry
,
graphs
,
implementation
,
shortest paths
2200
x375
181B
Number of Triplets
binary search
,
brute force
1300
x3658
181A
Series of Crimes
brute force
,
geometry
,
implementation
800
x9206
180F
Mathematical Analysis Rocks!
constructive algorithms
,
implementation
,
math
1200
x2957
180E
Cubes
binary search
,
dp
,
two pointers
1800
x2175
180D
Name
greedy
,
strings
1900
x833
180C
Letter
dp
1400
x8874
180B
Divisibility Rules
math
,
number theory
2300
x523
180A
Defragmentation
implementation
1800
x652
178F3
Representative Sampling
2500
x665
178F2
Representative Sampling
dp
,
sortings
,
strings
2200
x402
178F1
Representative Sampling
1800
x472
178E3
The Beaver's Problem - 2
2300
x219
178E2
The Beaver's Problem - 2
2000
x247
178E1
The Beaver's Problem - 2
1900
x320
178D3
Magic Squares
2100
x276
178D2
Magic Squares
1900
x331
178D1
Magic Squares
1500
x752
178C3
Smart Beaver and Resolving Collisions
2000
x363
178C2
Smart Beaver and Resolving Collisions
1900
x346
178C1
Smart Beaver and Resolving Collisions
1600
x593
178B3
Greedy Merchants
1800
x1660
178B2
Greedy Merchants
1600
x813
178B1
Greedy Merchants
1600
x905
178A3
Educational Game
greedy
1100
x1698
178A2
Educational Game
greedy
1000
x1908
178A1
Educational Game
1000
x1886
177G2
Fibonacci Strings
matrices
,
strings
2600
x291
177G1
Fibonacci Strings
strings
2400
x256
177F2
Script Generation
2300
x247
177F1
Script Generation
1800
x370
177E2
Space Voyage
binary search
1900
x509
177E1
Space Voyage
binary search
1700
x736
177D2
Encrypting Messages
data structures
1500
x2903
177D1
Encrypting Messages
brute force
1200
x2841
177C2
Party
brute force
,
dfs and similar
,
dsu
,
graphs
1500
x3142
177C1
Party
dfs and similar
,
dsu
,
graphs
1500
x3103
177B2
Rectangular Game
number theory
1200
x3495
177B1
Rectangular Game
number theory
1000
x5226
177A2
Good Matrix Elements
implementation
800
x8808
177A1
Good Matrix Elements
implementation
800
x11821
176E
Archaeology
data structures
,
dfs and similar
,
trees
3100
x1774
176D
Hyper String
dp
2500
x421
176C
Playing with Superglue
combinatorics
,
constructive algorithms
2000
x549
176B
Word Cut
dp
1700
x2494
176A
Trading Business
greedy
,
sortings
1200
x1893
175F
Gnomes of Might and Magic
data structures
,
graphs
,
implementation
,
shortest paths
3000
x104
175E
Power Defence
brute force
,
dp
,
geometry
,
greedy
2600
x307
175D
Plane of Tanks: Duel
brute force
,
dp
,
math
,
probabilities
2400
x348
175C
Geometry Horse
greedy
,
implementation
,
sortings
,
two pointers
1600
x1593
175B
Plane of Tanks: Pro
implementation
1400
x1611
175A
Robot Bicorn Attack
brute force
,
implementation
1400
x2629
174C
Range Increments
data structures
,
greedy
1800
x1313
174B
File List
dp
,
greedy
,
implementation
1400
x2583
174A
Problem About Equation
math
1100
x3417
173E
Camping Groups
data structures
,
sortings
2600
x791
173D
Deputies
constructive algorithms
,
graphs
,
greedy
,
implementation
2500
x323
173C
Spiral Maximum
brute force
,
dp
1900
x1127
173B
Chamber of Secrets
dfs and similar
,
shortest paths
1800
x4309
173A
Rock-Paper-Scissors
implementation
,
math
1300
x2587
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