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Codeforces Round 940 (Div. 2) and CodeCraft-23
2 days
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geometry
combine-tags-by-or
*combine tags by OR
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
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strings
ternary search
trees
two pointers
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Custom test
Problems
#
Name
270A
Fancy Fence
geometry
,
implementation
,
math
1100
x43247
1791B
Following Directions
geometry
,
implementation
800
x41486
1369A
FashionabLee
geometry
,
math
800
x35471
766B
Mahmoud and a Triangle
constructive algorithms
,
geometry
,
greedy
,
math
,
number theory
,
sortings
1000
x30849
1622A
Construct a Rectangle
geometry
,
math
800
x29399
1926B
Vlad and Shapes
geometry
,
implementation
800
x29140
1398A
Bad Triangle
geometry
,
math
800
x26940
1312A
Two Regular Polygons
geometry
,
greedy
,
math
,
number theory
800
x25237
224A
Parallelepiped
brute force
,
geometry
,
math
1100
x25218
1515B
Phoenix and Puzzle
brute force
,
geometry
,
math
,
number theory
1000
x24060
507B
Amr and Pins
geometry
,
math
1400
x23761
1466A
Bovine Dilemma
brute force
,
geometry
,
math
800
x22250
1806A
Walking Master
geometry
,
greedy
,
math
800
x22047
1713A
Traveling Salesman Problem
geometry
,
greedy
,
implementation
800
x21620
1064A
Make a triangle!
brute force
,
geometry
,
math
800
x21599
1795B
Ideal Point
brute force
,
geometry
,
greedy
900
x21093
1928A
Rectangle Cutting
geometry
,
math
800
x20878
1845B
Come Together
geometry
,
implementation
,
math
900
x20768
1422A
Fence
geometry
,
math
800
x20601
1850E
Cardboard for Pictures
binary search
,
geometry
,
implementation
,
math
1100
x20550
514B
Han Solo and Lazer Gun
brute force
,
data structures
,
geometry
,
implementation
,
math
1400
x20086
1539A
Contest Start
combinatorics
,
geometry
,
greedy
,
math
1000
x19553
1199B
Water Lily
geometry
,
math
1000
x19546
1620B
Triangles on a Rectangle
geometry
,
greedy
,
math
1000
x19456
6A
Triangle
brute force
,
geometry
900
x18985
1846D
Rudolph and Christmas Tree
constructive algorithms
,
geometry
,
math
1200
x18208
1816A
Ian Visits Mary
constructive algorithms
,
geometry
,
number theory
800
x16886
1047B
Cover Points
geometry
,
math
900
x16863
1495A
Diamond Miner
geometry
,
greedy
,
math
,
sortings
1200
x16631
1642A
Hard Way
geometry
800
x15890
1354C1
Simple Polygon Embedding
binary search
,
geometry
,
math
,
ternary search
1400
x15296
1486B
Eastern Exhibition
binary search
,
geometry
,
shortest paths
,
sortings
1500
x15161
1886B
Fear of the Dark
binary search
,
geometry
,
math
1200
x15022
650A
Watchmen
data structures
,
geometry
,
math
1400
x15011
1450B
Balls of Steel
brute force
,
geometry
,
greedy
1000
x14851
1781A
Parallel Projection
geometry
,
math
800
x14828
706A
Beru-taxi
brute force
,
geometry
,
implementation
900
x14231
1869B
2D Traveling
geometry
,
math
,
shortest paths
,
sortings
1100
x14210
1248A
Integer Points
geometry
,
math
1000
x13744
1740B
Jumbo Extra Cheese 2
geometry
,
greedy
,
sortings
800
x13508
900A
Find Extra One
geometry
,
implementation
800
x13337
1307B
Cow and Friend
geometry
,
greedy
,
math
1300
x12880
157B
Trace
geometry
,
sortings
1000
x12813
1805C
Place for a Selfie
binary search
,
data structures
,
geometry
,
math
1400
x11952
1616C
Representative Edges
brute force
,
geometry
,
implementation
,
math
1500
x11922
1030B
Vasya and Cornfield
geometry
1100
x11783
1730B
Meeting on the Line
binary search
,
geometry
,
greedy
,
implementation
,
math
,
ternary search
1600
x11749
1648A
Weird Sum
combinatorics
,
data structures
,
geometry
,
math
,
matrices
,
sortings
1400
x11652
1850G
The Morning Star
combinatorics
,
data structures
,
geometry
,
implementation
,
math
,
sortings
1500
x11093
127A
Wasted Time
geometry
900
x10697
559A
Gerald's Hexagon
brute force
,
geometry
,
math
1600
x10272
1271C
Shawarma Tent
brute force
,
geometry
,
greedy
,
implementation
1300
x10239
842B
Gleb And Pizza
geometry
1100
x9964
1550C
Manhattan Subarrays
brute force
,
geometry
,
greedy
,
implementation
1700
x9913
1100C
NN and the Optical Illusion
binary search
,
geometry
,
math
1200
x9715
750B
New Year and North Pole
geometry
,
implementation
1300
x9418
1451D
Circle Game
games
,
geometry
,
math
1700
x9229
1942C1
Bessie's Birthday Cake (Easy Version)
geometry
,
greedy
,
math
1300
x9018
1216C
White Sheet
geometry
,
math
1700
x8748
1598D
Training Session
combinatorics
,
data structures
,
geometry
,
implementation
,
math
1700
x8370
749B
Parallelogram is Back
brute force
,
constructive algorithms
,
geometry
1200
x8353
1156A
Inscribed Figures
geometry
1400
x8029
1916D
Mathematical Problem
brute force
,
constructive algorithms
,
geometry
,
math
1700
x7802
667A
Pouring Rain
geometry
,
math
1100
x7774
596A
Wilbur and Swimming Pool
geometry
,
implementation
1100
x7591
859B
Lazy Security Guard
brute force
,
geometry
,
math
1000
x6729
181A
Series of Crimes
brute force
,
geometry
,
implementation
800
x6677
1096C
Polygon for the Angle
brute force
,
geometry
1600
x6658
908C
New Year and Curling
brute force
,
geometry
,
implementation
,
math
1500
x6656
498A
Crazy Town
geometry
1700
x6328
794B
Cutting Carrot
geometry
,
math
1200
x6304
659D
Bicycle Race
geometry
,
implementation
,
math
1500
x6133
1292B
Aroma's Search
brute force
,
constructive algorithms
,
geometry
,
greedy
,
implementation
1700
x6005
1934C
Find a Mine
binary search
,
constructive algorithms
,
geometry
,
greedy
,
interactive
,
math
1700
x5898
1237C1
Balanced Removals (Easier)
constructive algorithms
,
geometry
,
greedy
1700
x5852
1354C2
Not So Simple Polygon Embedding
binary search
,
brute force
,
geometry
,
math
2000
x5795
1552C
Maximize the Intersections
combinatorics
,
constructive algorithms
,
geometry
,
greedy
,
sortings
1800
x5764
18A
Triangle
brute force
,
geometry
1500
x5673
1030D
Vasya and Triangle
geometry
,
number theory
1800
x5669
1725G
Garage
binary search
,
geometry
,
math
1500
x5569
279A
Point on Spiral
brute force
,
geometry
,
implementation
1400
x5463
667B
Coat of Anticubism
constructive algorithms
,
geometry
1100
x5448
851B
Arpa and an exam about geometry
geometry
,
math
1400
x5416
1C
Ancient Berland Circus
geometry
,
math
2100
x5358
1942C2
Bessie's Birthday Cake (Hard Version)
geometry
,
greedy
,
math
1700
x5225
9B
Running Student
brute force
,
geometry
,
implementation
1200
x5171
141B
Hopscotch
geometry
,
math
1400
x5109
820B
Mister B and Angle in Polygon
constructive algorithms
,
geometry
,
math
1300
x5078
1299B
Aerodynamic
geometry
1800
x5023
1670D
Very Suspicious
binary search
,
brute force
,
geometry
,
greedy
,
implementation
,
math
1700
x4935
407A
Triangle
brute force
,
geometry
,
implementation
,
math
1600
x4737
319C
Kalila and Dimna in the Logging Industry
dp
,
geometry
2100
x4702
578A
A Problem about Polyline
geometry
,
math
1700
x4683
935C
Fifa and Fafa
geometry
1600
x4626
552D
Vanya and Triangles
brute force
,
combinatorics
,
data structures
,
geometry
,
math
,
sortings
1900
x4341
1028C
Rectangles
geometry
,
implementation
,
sortings
1600
x4311
80B
Depression
geometry
,
math
1200
x4213
257C
View Angle
brute force
,
geometry
,
math
1800
x4178
618C
Constellation
geometry
,
implementation
1600
x4160
671A
Recycling Bottles
dp
,
geometry
,
greedy
,
implementation
1800
x4104
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