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Codeforces Round 945 (Div. 2)
06:18:34
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Difficulty:
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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
string suffix structures
strings
ternary search
trees
two pointers
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Custom test
Problems
#
Name
270A
Fancy Fence
geometry
,
implementation
,
math
1100
x43541
1791B
Following Directions
geometry
,
implementation
800
x41995
1369A
FashionabLee
geometry
,
math
800
x35648
766B
Mahmoud and a Triangle
constructive algorithms
,
geometry
,
greedy
,
math
,
number theory
,
sortings
1000
x31205
1926B
Vlad and Shapes
geometry
,
implementation
800
x29930
1622A
Construct a Rectangle
geometry
,
math
800
x29491
1398A
Bad Triangle
geometry
,
math
800
x27005
224A
Parallelepiped
brute force
,
geometry
,
math
1100
x25424
1312A
Two Regular Polygons
geometry
,
greedy
,
math
,
number theory
800
x25346
1515B
Phoenix and Puzzle
brute force
,
geometry
,
math
,
number theory
1000
x24188
507B
Amr and Pins
geometry
,
math
1400
x23864
1806A
Walking Master
geometry
,
greedy
,
math
800
x22375
1466A
Bovine Dilemma
brute force
,
geometry
,
math
800
x22284
1064A
Make a triangle!
brute force
,
geometry
,
math
800
x21719
1713A
Traveling Salesman Problem
geometry
,
greedy
,
implementation
800
x21674
1928A
Rectangle Cutting
geometry
,
math
800
x21247
1795B
Ideal Point
brute force
,
geometry
,
greedy
900
x21197
1850E
Cardboard for Pictures
binary search
,
geometry
,
implementation
,
math
1100
x20966
1845B
Come Together
geometry
,
implementation
,
math
900
x20904
1422A
Fence
geometry
,
math
800
x20645
514B
Han Solo and Lazer Gun
brute force
,
data structures
,
geometry
,
implementation
,
math
1400
x20202
1199B
Water Lily
geometry
,
math
1000
x19737
1620B
Triangles on a Rectangle
geometry
,
greedy
,
math
1000
x19638
1539A
Contest Start
combinatorics
,
geometry
,
greedy
,
math
1000
x19619
6A
Triangle
brute force
,
geometry
900
x19101
1846D
Rudolph and Christmas Tree
constructive algorithms
,
geometry
,
math
1200
x18376
1816A
Ian Visits Mary
constructive algorithms
,
geometry
,
number theory
800
x16948
1047B
Cover Points
geometry
,
math
900
x16901
1495A
Diamond Miner
geometry
,
greedy
,
math
,
sortings
1200
x16693
1642A
Hard Way
geometry
800
x15988
1354C1
Simple Polygon Embedding
binary search
,
geometry
,
math
,
ternary search
1400
x15335
1486B
Eastern Exhibition
binary search
,
geometry
,
shortest paths
,
sortings
1500
x15274
1886B
Fear of the Dark
binary search
,
geometry
,
math
1200
x15227
650A
Watchmen
data structures
,
geometry
,
math
1400
x15068
1450B
Balls of Steel
brute force
,
geometry
,
greedy
1000
x14888
1781A
Parallel Projection
geometry
,
math
800
x14859
1869B
2D Traveling
geometry
,
math
,
shortest paths
,
sortings
1100
x14488
706A
Beru-taxi
brute force
,
geometry
,
implementation
900
x14264
1248A
Integer Points
geometry
,
math
1000
x13769
1740B
Jumbo Extra Cheese 2
geometry
,
greedy
,
sortings
800
x13550
900A
Find Extra One
geometry
,
implementation
800
x13383
1307B
Cow and Friend
geometry
,
greedy
,
math
1300
x12940
157B
Trace
geometry
,
sortings
1000
x12865
1805C
Place for a Selfie
binary search
,
data structures
,
geometry
,
math
1400
x12046
1616C
Representative Edges
brute force
,
geometry
,
implementation
,
math
1500
x11978
1730B
Meeting on the Line
binary search
,
geometry
,
greedy
,
implementation
,
math
,
ternary search
1600
x11889
1030B
Vasya and Cornfield
geometry
1100
x11882
1648A
Weird Sum
combinatorics
,
data structures
,
geometry
,
math
,
matrices
,
sortings
1400
x11800
1850G
The Morning Star
combinatorics
,
data structures
,
geometry
,
implementation
,
math
,
sortings
1500
x11274
127A
Wasted Time
geometry
900
x10749
559A
Gerald's Hexagon
brute force
,
geometry
,
math
1600
x10288
1271C
Shawarma Tent
brute force
,
geometry
,
greedy
,
implementation
1300
x10265
842B
Gleb And Pizza
geometry
1100
x10065
1550C
Manhattan Subarrays
brute force
,
geometry
,
greedy
,
implementation
1700
x9949
1100C
NN and the Optical Illusion
binary search
,
geometry
,
math
1200
x9734
1942C1
Bessie's Birthday Cake (Easy Version)
geometry
,
greedy
,
math
1300
x9586
750B
New Year and North Pole
geometry
,
implementation
1300
x9430
1451D
Circle Game
games
,
geometry
,
math
1700
x9271
1216C
White Sheet
geometry
,
math
1700
x8779
1598D
Training Session
combinatorics
,
data structures
,
geometry
,
implementation
,
math
1700
x8413
749B
Parallelogram is Back
brute force
,
constructive algorithms
,
geometry
1200
x8375
1156A
Inscribed Figures
geometry
1400
x8109
1916D
Mathematical Problem
brute force
,
constructive algorithms
,
geometry
,
math
1700
x7913
667A
Pouring Rain
geometry
,
math
1100
x7789
596A
Wilbur and Swimming Pool
geometry
,
implementation
1100
x7605
859B
Lazy Security Guard
brute force
,
geometry
,
math
1000
x6752
181A
Series of Crimes
brute force
,
geometry
,
implementation
800
x6718
1096C
Polygon for the Angle
brute force
,
geometry
1600
x6672
908C
New Year and Curling
brute force
,
geometry
,
implementation
,
math
1500
x6670
794B
Cutting Carrot
geometry
,
math
1200
x6345
498A
Crazy Town
geometry
1700
x6340
1971F
Circle Perimeter
binary search
,
brute force
,
dfs and similar
,
geometry
,
implementation
,
math
1600
x6193
659D
Bicycle Race
geometry
,
implementation
,
math
1500
x6145
1934C
Find a Mine
binary search
,
constructive algorithms
,
geometry
,
greedy
,
interactive
,
math
1700
x6068
1292B
Aroma's Search
brute force
,
constructive algorithms
,
geometry
,
greedy
,
implementation
1700
x6031
1237C1
Balanced Removals (Easier)
constructive algorithms
,
geometry
,
greedy
1700
x5865
1354C2
Not So Simple Polygon Embedding
binary search
,
brute force
,
geometry
,
math
2000
x5816
1552C
Maximize the Intersections
combinatorics
,
constructive algorithms
,
geometry
,
greedy
,
sortings
1800
x5776
18A
Triangle
brute force
,
geometry
1500
x5705
1030D
Vasya and Triangle
geometry
,
number theory
1800
x5681
1725G
Garage
binary search
,
geometry
,
math
1500
x5615
1942C2
Bessie's Birthday Cake (Hard Version)
geometry
,
greedy
,
math
1700
x5506
279A
Point on Spiral
brute force
,
geometry
,
implementation
1400
x5506
667B
Coat of Anticubism
constructive algorithms
,
geometry
1100
x5457
851B
Arpa and an exam about geometry
geometry
,
math
1400
x5437
1C
Ancient Berland Circus
geometry
,
math
2100
x5386
9B
Running Student
brute force
,
geometry
,
implementation
1200
x5206
141B
Hopscotch
geometry
,
math
1400
x5143
820B
Mister B and Angle in Polygon
constructive algorithms
,
geometry
,
math
1300
x5083
1299B
Aerodynamic
geometry
1800
x5056
1670D
Very Suspicious
binary search
,
brute force
,
geometry
,
greedy
,
implementation
,
math
1700
x4958
319C
Kalila and Dimna in the Logging Industry
dp
,
geometry
2100
x4751
407A
Triangle
brute force
,
geometry
,
implementation
,
math
1600
x4750
578A
A Problem about Polyline
geometry
,
math
1700
x4687
935C
Fifa and Fafa
geometry
1600
x4641
1028C
Rectangles
geometry
,
implementation
,
sortings
1600
x4366
552D
Vanya and Triangles
brute force
,
combinatorics
,
data structures
,
geometry
,
math
,
sortings
1900
x4356
80B
Depression
geometry
,
math
1200
x4226
257C
View Angle
brute force
,
geometry
,
math
1800
x4195
618C
Constellation
geometry
,
implementation
1600
x4172
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