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Status
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Custom test
Problems
#
Name
645G
Armistice Area Apportionment
binary search
,
geometry
3200
x111
645F
Cowslip Collections
combinatorics
,
math
,
number theory
2500
x757
645E
Intellectual Inquiry
dp
,
greedy
,
strings
2200
x1215
645D
Robot Rapping Results Report
binary search
,
dp
,
graphs
1800
x2756
645C
Enduring Exodus
binary search
,
two pointers
1600
x3148
645B
Mischievous Mess Makers
greedy
,
math
1200
x3329
645A
Amity Assessment
brute force
,
constructive algorithms
,
implementation
1200
x3352
644C
Hostname Aliases
*special problem
,
binary search
,
data structures
,
implementation
,
sortings
,
strings
2100
x908
644B
Processing Queries
*special problem
,
constructive algorithms
,
data structures
,
two pointers
1700
x2601
644A
Parliament of Berland
*special problem
,
constructive algorithms
1000
x4374
643G
Choosing Ads
data structures
3200
x910
643F
Bears and Juice
dp
,
math
,
meet-in-the-middle
2900
x673
643E
Bear and Destroying Subtrees
dp
,
math
,
probabilities
,
trees
2700
x579
643D
Bearish Fanpages
2900
x309
643C
Levels and Regions
dp
2400
x1312
643B
Bear and Two Paths
constructive algorithms
,
graphs
1600
x3138
643A
Bear and Colors
implementation
1500
x4102
641G
Little Artem and Graph
2300
x88
641F
Little Artem and 2-SAT
3000
x183
641E
Little Artem and Time Machine
data structures
2000
x2901
641D
Little Artem and Random Variable
dp
,
implementation
,
math
,
probabilities
2400
x1045
641C
Little Artem and Dance
brute force
,
constructive algorithms
,
implementation
1800
x2838
641B
Little Artem and Matrix
implementation
1400
x3732
641A
Little Artem and Grasshopper
implementation
1000
x5776
639F
Bear and Chemistry
data structures
,
dfs and similar
,
graphs
,
trees
3300
x393
639E
Bear and Paradox
binary search
,
greedy
,
math
,
sortings
2800
x565
639D
Bear and Contribution
data structures
,
greedy
,
sortings
,
two pointers
2400
x776
639C
Bear and Polynomials
hashing
,
implementation
,
math
2200
x1187
639B
Bear and Forgotten Tree 3
constructive algorithms
,
graphs
,
trees
1600
x6388
639A
Bear and Displayed Friends
implementation
1200
x5997
638D
Three-dimensional Turtle Super Computer
brute force
,
dfs and similar
,
graphs
1800
x683
638C
Road Improvement
*special problem
,
dfs and similar
,
graphs
,
greedy
,
trees
1800
x1479
638B
Making Genome in Berland
*special problem
,
dfs and similar
,
strings
1500
x1926
638A
Home Numbers
*special problem
,
constructive algorithms
,
math
1100
x3748
637D
Running with Obstacles
*special problem
,
data structures
,
dp
,
greedy
1600
x1947
637C
Promocodes with Mistakes
*special problem
,
brute force
,
constructive algorithms
,
implementation
1400
x2409
637B
Chat Order
*special problem
,
binary search
,
constructive algorithms
,
data structures
,
sortings
1200
x14968
637A
Voting for Photos
*special problem
,
constructive algorithms
,
implementation
1000
x5303
635A
Orchestra
brute force
,
implementation
1100
x2817
634A
Island Puzzle
constructive algorithms
,
implementation
1300
x3085
633H
Fibonacci-ish II
data structures
,
implementation
3100
x561
633G
Yash And Trees
bitmasks
,
data structures
,
dfs and similar
,
math
,
number theory
2800
x710
633F
The Chocolate Spree
dfs and similar
,
dp
,
graphs
,
trees
2600
x898
633E
Startup Funding
binary search
,
constructive algorithms
,
data structures
,
probabilities
,
two pointers
2400
x567
633D
Fibonacci-ish
brute force
,
dp
,
hashing
,
implementation
,
math
2000
x2558
633C
Spy Syndrome 2
data structures
,
dp
,
hashing
,
implementation
,
sortings
,
string suffix structures
,
strings
1900
x2592
633B
A Trivial Problem
brute force
,
constructive algorithms
,
math
,
number theory
1300
x6530
633A
Ebony and Ivory
brute force
,
math
,
number theory
1100
x12278
632F
Magic Matrix
brute force
,
divide and conquer
,
graphs
,
matrices
,
trees
2400
x1014
632E
Thief in a Shop
divide and conquer
,
dp
,
fft
,
math
2400
x2543
632D
Longest Subsequence
brute force
,
math
,
number theory
2100
x3358
632C
The Smallest String Concatenation
sortings
,
strings
1700
x7175
632B
Alice, Bob, Two Teams
brute force
,
constructive algorithms
1400
x3884
632A
Grandma Laura and Apples
1200
x4463
631E
Product Sum
data structures
,
dp
,
geometry
2600
x2195
631D
Messenger
data structures
,
hashing
,
implementation
,
string suffix structures
,
strings
2100
x1979
631C
Report
data structures
,
sortings
1700
x3681
631B
Print Check
constructive algorithms
,
implementation
1200
x7240
631A
Interview
brute force
,
implementation
900
x9121
630R
Game
games
,
math
1200
x8282
630Q
Pyramids
geometry
,
math
1700
x1209
630P
Area of a Star
geometry
2100
x1056
630O
Arrow
geometry
2000
x722
630N
Forecast
math
1300
x4499
630M
Turn
geometry
,
math
1800
x1093
630L
Cracking the Code
implementation
,
math
1400
x3443
630K
Indivisibility
math
,
number theory
1500
x5013
630J
Divisibility
math
,
number theory
1100
x10650
630I
Parking Lot
combinatorics
,
math
1700
x6262
630H
Benches
combinatorics
,
math
1400
x4733
630G
Challenge Pennants
combinatorics
,
math
1600
x2617
630F
Selection of Personnel
combinatorics
,
math
1300
x6542
630E
A rectangle
math
1900
x2119
630D
Hexagons!
math
1100
x9765
630C
Lucky Numbers
combinatorics
,
math
1100
x20339
630B
Moore's Law
math
1200
x6950
630A
Again Twenty Five!
number theory
800
x61544
629E
Famil Door and Roads
combinatorics
,
data structures
,
dfs and similar
,
dp
,
probabilities
,
trees
2300
x966
629D
Babaei and Birthday Cake
data structures
,
dp
2000
x3858
629C
Famil Door and Brackets
dp
,
strings
2000
x2733
629B
Far Relative’s Problem
brute force
1100
x7941
629A
Far Relative’s Birthday Cake
brute force
,
combinatorics
,
constructive algorithms
,
implementation
800
x13088
628F
Bear and Fair Set
flows
,
graphs
2500
x728
628E
Zbazi in Zeydabad
data structures
,
implementation
2300
x827
628D
Magic Numbers
dp
2200
x5330
628C
Bear and String Distance
greedy
,
strings
1300
x5647
628B
New Skateboard
dp
1300
x10274
628A
Tennis Tournament
implementation
,
math
1000
x6142
627F
Island Puzzle
dfs and similar
,
dsu
,
graphs
,
trees
3400
x229
627E
Orchestra
two pointers
3000
x531
627D
Preorder Test
binary search
,
dfs and similar
,
dp
,
graphs
,
greedy
,
trees
2600
x794
627C
Package Delivery
data structures
,
divide and conquer
,
greedy
2200
x1144
627B
Factory Repairs
data structures
1700
x2642
627A
XOR Equation
dp
,
math
1700
x3944
626G
Raffles
data structures
,
dp
,
greedy
,
math
3100
x517
626F
Group Projects
dp
2400
x2664
626E
Simple Skewness
binary search
,
math
,
ternary search
2400
x1291
626D
Jerry's Protest
brute force
,
combinatorics
,
dp
,
probabilities
1800
x2647
626C
Block Towers
brute force
,
greedy
,
math
,
number theory
1600
x4285
626B
Cards
constructive algorithms
,
dp
,
math
1300
x6500
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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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