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When submitting a solution in C++, please select either C++14 (GCC 6-32) or C++17 (GCC 7-32) as your compiler.
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Codeforces Round 935 (Div. 3)
03:33:42
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geometry
combine-tags-by-or
*combine tags by OR
2-sat
binary search
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chinese remainder theorem
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constructive algorithms
data structures
dfs and similar
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fft
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graph matchings
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Custom test
Problems
#
Name
1939A
Draw Polygon Lines
*special problem
,
constructive algorithms
,
dp
,
geometry
,
interactive
x11
1936F
Grand Finale: Circles
binary search
,
geometry
3300
x43
1934C
Find a Mine
binary search
,
constructive algorithms
,
geometry
,
greedy
,
interactive
,
math
1700
x5448
1928A
Rectangle Cutting
geometry
,
math
800
x20217
1926B
Vlad and Shapes
geometry
,
implementation
800
x27511
1924C
Fractal Origami
geometry
,
math
,
matrices
2400
x983
1920F2
Smooth Sailing (Hard Version)
binary search
,
data structures
,
dsu
,
geometry
,
graphs
,
trees
3000
x370
1916D
Mathematical Problem
brute force
,
constructive algorithms
,
geometry
,
math
1700
x7650
1912I
Innovative Washing Machine
geometry
,
math
,
two pointers
3300
x48
1906D
Spaceship Exploration
binary search
,
geometry
2800
x76
1901F
Landscaping
binary search
,
geometry
,
two pointers
2900
x137
1886B
Fear of the Dark
binary search
,
geometry
,
math
1200
x14766
1869B
2D Traveling
geometry
,
math
,
shortest paths
,
sortings
1100
x13768
1866K
Keen Tree Calculation
binary search
,
data structures
,
dp
,
geometry
,
graphs
,
implementation
,
trees
2500
x399
1860F
Evaluate RBS
data structures
,
geometry
,
implementation
,
math
,
sortings
2900
x258
1850G
The Morning Star
combinatorics
,
data structures
,
geometry
,
implementation
,
math
,
sortings
1500
x10800
1850E
Cardboard for Pictures
binary search
,
geometry
,
implementation
,
math
1100
x19911
1846D
Rudolph and Christmas Tree
constructive algorithms
,
geometry
,
math
1200
x17948
1845B
Come Together
geometry
,
implementation
,
math
900
x20530
1842E
Tenzing and Triangle
data structures
,
dp
,
geometry
,
greedy
,
math
2300
x1497
1841F
Monocarp and a Strategic Game
geometry
,
sortings
,
two pointers
2700
x457
1826F
Fading into Fog
geometry
,
interactive
,
math
,
probabilities
2800
x332
1819B
The Butcher
geometry
,
greedy
,
implementation
,
sortings
,
two pointers
1900
x3359
1816A
Ian Visits Mary
constructive algorithms
,
geometry
,
number theory
800
x16804
1812E
Not a Geometry Problem
*special problem
,
*special problem
,
constructive algorithms
,
geometry
,
math
x3653
1806A
Walking Master
geometry
,
greedy
,
math
800
x21263
1805C
Place for a Selfie
binary search
,
data structures
,
geometry
,
math
1400
x11788
1799E
City Union
constructive algorithms
,
dfs and similar
,
dsu
,
geometry
,
greedy
,
implementation
,
math
2300
x1119
1795B
Ideal Point
brute force
,
geometry
,
greedy
900
x20946
1791B
Following Directions
geometry
,
implementation
800
x40902
1787H
Codeforces Scoreboard
binary search
,
data structures
,
dp
,
geometry
3300
x194
1781A
Parallel Projection
geometry
,
math
800
x14773
1776I
Spinach Pizza
games
,
geometry
,
greedy
,
interactive
2500
x631
1776B
Vittorio Plays with LEGO Bricks
dp
,
geometry
2200
x1220
1765F
Chemistry Lab
dp
,
geometry
,
probabilities
2200
x580
1746G
Olympiad Training
binary search
,
data structures
,
dp
,
flows
,
geometry
,
implementation
,
sortings
3500
x88
1740I
Arranging Crystal Balls
data structures
,
divide and conquer
,
divide and conquer
,
dp
,
geometry
,
graphs
,
number theory
3500
x96
1740B
Jumbo Extra Cheese 2
geometry
,
greedy
,
sortings
800
x13423
1736D
Equal Binary Subsequences
constructive algorithms
,
geometry
,
greedy
,
implementation
,
strings
2200
x2357
1735F
Pebbles and Beads
data structures
,
geometry
2900
x189
1730B
Meeting on the Line
binary search
,
geometry
,
greedy
,
implementation
,
math
,
ternary search
1600
x11544
1726H
Mainak and the Bleeding Polygon
binary search
,
geometry
,
implementation
,
math
3500
x78
1725G
Garage
binary search
,
geometry
,
math
1500
x5487
1725C
Circular Mirror
binary search
,
combinatorics
,
geometry
,
math
,
two pointers
2000
x1512
1715F
Crop Squares
constructive algorithms
,
geometry
,
interactive
,
math
2700
x493
1715E
Long Way Home
data structures
,
divide and conquer
,
dp
,
geometry
,
graphs
,
greedy
,
shortest paths
2400
x1571
1713A
Traveling Salesman Problem
geometry
,
greedy
,
implementation
800
x21552
1710B
Rain
binary search
,
brute force
,
data structures
,
geometry
,
greedy
,
implementation
,
math
2100
x2330
1697E
Coloring
brute force
,
combinatorics
,
constructive algorithms
,
dp
,
geometry
,
graphs
,
greedy
,
implementation
,
math
2400
x1122
1696G
Fishingprince Plays With Array Again
brute force
,
data structures
,
geometry
,
math
3300
x261
1689D
Lena and Matrix
data structures
,
dp
,
geometry
,
shortest paths
1900
x3982
1670D
Very Suspicious
binary search
,
brute force
,
geometry
,
greedy
,
implementation
,
math
1700
x4899
1666I
Interactive Treasure Hunt
brute force
,
constructive algorithms
,
geometry
,
interactive
,
math
2200
x1355
1666G
Global Warming
geometry
,
math
3100
x130
1666C
Connect the Points
brute force
,
constructive algorithms
,
geometry
1800
x3025
1662K
Pandemic Restrictions
geometry
,
ternary search
x282
1648A
Weird Sum
combinatorics
,
data structures
,
geometry
,
math
,
matrices
,
sortings
1400
x11453
1642A
Hard Way
geometry
800
x15863
1641F
Covering Circle
geometry
3500
x92
1628F
Spaceship Crisis Management
binary search
,
data structures
,
geometry
,
sortings
3500
x81
1627F
Not Splitting
geometry
,
graphs
,
greedy
,
implementation
,
shortest paths
2700
x547
1622A
Construct a Rectangle
geometry
,
math
800
x29239
1620B
Triangles on a Rectangle
geometry
,
greedy
,
math
1000
x19063
1616C
Representative Edges
brute force
,
geometry
,
implementation
,
math
1500
x11858
1599G
Shortest path
brute force
,
geometry
,
math
,
shortest paths
2700
x351
1598D
Training Session
combinatorics
,
data structures
,
geometry
,
implementation
,
math
1700
x8294
1584G
Eligible Segments
geometry
3200
x197
1578I
Interactive Rays
geometry
,
interactive
3300
x58
1578F
Framing Pictures
geometry
2900
x148
1575M
Managing Telephone Poles
data structures
,
geometry
2400
x229
1575B
Building an Amusement Park
binary search
,
geometry
2300
x447
1572E
Polygon
binary search
,
dp
,
geometry
3000
x258
1571H
Laser Beams
*special problem
,
geometry
,
probabilities
2900
x43
1552C
Maximize the Intersections
combinatorics
,
constructive algorithms
,
geometry
,
greedy
,
sortings
1800
x5728
1550C
Manhattan Subarrays
brute force
,
geometry
,
greedy
,
implementation
1700
x9837
1548D2
Gregor and the Odd Cows (Hard)
brute force
,
geometry
,
math
,
number theory
3300
x236
1548D1
Gregor and the Odd Cows (Easy)
bitmasks
,
geometry
,
math
,
number theory
2300
x1418
1539A
Contest Start
combinatorics
,
geometry
,
greedy
,
math
1000
x19490
1536F
Omkar and Akmar
chinese remainder theorem
,
combinatorics
,
constructive algorithms
,
fft
,
games
,
geometry
,
math
,
meet-in-the-middle
,
string suffix structures
2600
x899
1534G
A New Beginning
data structures
,
dp
,
geometry
,
sortings
3300
x498
1519E
Off by One
constructive algorithms
,
dfs and similar
,
geometry
,
graphs
,
sortings
,
trees
2700
x786
1517H
Fly Around the World
dp
,
geometry
3500
x63
1515B
Phoenix and Puzzle
brute force
,
geometry
,
math
,
number theory
1000
x23898
1508D
Swap Pass
constructive algorithms
,
geometry
,
sortings
3000
x518
1503F
Balance the Cards
constructive algorithms
,
data structures
,
divide and conquer
,
geometry
,
graphs
,
implementation
3500
x122
1495A
Diamond Miner
geometry
,
greedy
,
math
,
sortings
1200
x16538
1486B
Eastern Exhibition
binary search
,
geometry
,
shortest paths
,
sortings
1500
x14993
1477C
Nezzar and Nice Beatmap
constructive algorithms
,
geometry
,
greedy
,
math
,
sortings
2200
x2181
1468I
Plane Tiling
geometry
,
implementation
,
math
2500
x468
1468G
Hobbits
binary search
,
geometry
2500
x790
1468F
Full Turn
geometry
,
hashing
,
number theory
1700
x3532
1466A
Bovine Dilemma
brute force
,
geometry
,
math
800
x22217
1455E
Four Points
brute force
,
constructive algorithms
,
flows
,
geometry
,
greedy
,
implementation
,
math
,
ternary search
2400
x1415
1451D
Circle Game
games
,
geometry
,
math
1700
x9187
1450B
Balls of Steel
brute force
,
geometry
,
greedy
1000
x14786
1446F
Line Distance
binary search
,
data structures
,
geometry
3200
x261
1444D
Rectangular Polyline
constructive algorithms
,
dp
,
geometry
2900
x528
1427H
Prison Break
binary search
,
games
,
geometry
,
ternary search
3500
x66
1423E
5G Antenna Towers
geometry
2700
x70
1422A
Fence
geometry
,
math
800
x20554
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