Problemset - Codeforces

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Educational Codeforces Round 166 (Rated for Div. 2)
31:26:35
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geometry

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Problems

#	Name
1971F	Circle Perimeter binary search, brute force, dfs and similar, geometry, implementation, math	1600	x7436
1952I	Dark Matter bitmasks, geometry		x365
1949I	Disks dfs and similar, geometry, graph matchings, graphs	1800	x1238
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities	3300	x86
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5598
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x9791
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x19
1936F	Grand Finale: Circles binary search, geometry	3300	x69
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6134
1928A	Rectangle Cutting geometry, math	800	x21396
1926B	Vlad and Shapes geometry, implementation	800	x30163
1924C	Fractal Origami geometry, math, matrices	2400	x1058
1920F2	Smooth Sailing (Hard Version) binary search, data structures, dsu, geometry, graphs, trees	3000	x420
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x7958
1912I	Innovative Washing Machine geometry, math, two pointers	3300	x54
1906D	Spaceship Exploration binary search, geometry	2800	x89
1901F	Landscaping binary search, geometry, two pointers	2900	x144
1886B	Fear of the Dark binary search, geometry, math	1200	x15303
1869B	2D Traveling geometry, math, shortest paths, sortings	1100	x14631
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x414
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x265
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11364
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x21100
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x18469
1845B	Come Together geometry, implementation, math	900	x20974
1842E	Tenzing and Triangle data structures, dp, geometry, greedy, math	2300	x1547
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x476
1826F	Fading into Fog geometry, interactive, math, probabilities	2800	x339
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x3450
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x16974
1812E	Not a Geometry Problem special problem, special problem, constructive algorithms, geometry, math		x3953
1806A	Walking Master geometry, greedy, math	800	x22604
1805C	Place for a Selfie binary search, data structures, geometry, math	1400	x12082
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1163
1795B	Ideal Point brute force, geometry, greedy	900	x21260
1791B	Following Directions geometry, implementation	800	x42160
1787H	Codeforces Scoreboard binary search, data structures, dp, geometry	3300	x202
1781A	Parallel Projection geometry, math	800	x14889
1776I	Spinach Pizza games, geometry, greedy, interactive	2500	x642
1776B	Vittorio Plays with LEGO Bricks dp, geometry	2200	x1250
1765F	Chemistry Lab dp, geometry, probabilities	2200	x589
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	x105
1740B	Jumbo Extra Cheese 2 geometry, greedy, sortings	800	x13590
1736D	Equal Binary Subsequences constructive algorithms, geometry, greedy, implementation, strings	2200	x2408
1735F	Pebbles and Beads data structures, geometry	2900	x218
1730B	Meeting on the Line binary search, geometry, greedy, implementation, math, ternary search	1600	x11957
1726H	Mainak and the Bleeding Polygon binary search, geometry, implementation, math	3500	x80
1725G	Garage binary search, geometry, math	1500	x5641
1725C	Circular Mirror binary search, combinatorics, geometry, math, two pointers	2000	x1550
1715F	Crop Squares constructive algorithms, geometry, interactive, math	2700	x504
1715E	Long Way Home data structures, divide and conquer, dp, geometry, graphs, greedy, shortest paths	2400	x1619
1713A	Traveling Salesman Problem geometry, greedy, implementation	800	x21699
1710B	Rain binary search, brute force, data structures, geometry, greedy, implementation, math	2100	x2365
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1145
1696G	Fishingprince Plays With Array Again brute force, data structures, geometry, math	3300	x265
1689D	Lena and Matrix data structures, dp, geometry, shortest paths	1900	x4049
1670D	Very Suspicious binary search, brute force, geometry, greedy, implementation, math	1700	x4978
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1387
1666G	Global Warming geometry, math	3100	x133
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3092
1662K	Pandemic Restrictions geometry, ternary search		x307
1648A	Weird Sum combinatorics, data structures, geometry, math, matrices, sortings	1400	x11896
1642A	Hard Way geometry	800	x16019
1641F	Covering Circle geometry	3500	x95
1628F	Spaceship Crisis Management binary search, data structures, geometry, sortings	3500	x84
1627F	Not Splitting geometry, graphs, greedy, implementation, shortest paths	2700	x556
1622A	Construct a Rectangle geometry, math	800	x29545
1620B	Triangles on a Rectangle geometry, greedy, math	1000	x19767
1616C	Representative Edges brute force, geometry, implementation, math	1500	x12005
1599G	Shortest path brute force, geometry, math, shortest paths	2700	x357
1598D	Training Session combinatorics, data structures, geometry, implementation, math	1700	x8429
1584G	Eligible Segments geometry	3200	x202
1578I	Interactive Rays geometry, interactive	3300	x58
1578F	Framing Pictures geometry	2900	x148
1575M	Managing Telephone Poles data structures, geometry	2400	x239
1575B	Building an Amusement Park binary search, geometry	2300	x454
1572E	Polygon binary search, dp, geometry	3000	x279
1571H	Laser Beams *special problem, geometry, probabilities	2900	x45
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5784
1550C	Manhattan Subarrays brute force, geometry, greedy, implementation	1700	x9965
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x238
1548D1	Gregor and the Odd Cows (Easy) bitmasks, geometry, math, number theory	2300	x1432
1539A	Contest Start combinatorics, geometry, greedy, math	1000	x19654
1536F	Omkar and Akmar chinese remainder theorem, combinatorics, constructive algorithms, fft, games, geometry, math, meet-in-the-middle, string suffix structures	2600	x917
1534G	A New Beginning data structures, dp, geometry, sortings	3300	x530
1519E	Off by One constructive algorithms, dfs and similar, geometry, graphs, sortings, trees	2700	x809
1517H	Fly Around the World dp, geometry	3500	x64
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x24241
1508D	Swap Pass constructive algorithms, geometry, sortings	3000	x532
1503F	Balance the Cards constructive algorithms, data structures, divide and conquer, geometry, graphs, implementation	3500	x135
1495A	Diamond Miner geometry, greedy, math, sortings	1200	x16743
1486B	Eastern Exhibition binary search, geometry, shortest paths, sortings	1500	x15340
1477C	Nezzar and Nice Beatmap constructive algorithms, geometry, greedy, math, sortings	2200	x2213
1468I	Plane Tiling geometry, implementation, math	2500	x471
1468G	Hobbits binary search, geometry	2500	x800
1468F	Full Turn geometry, hashing, number theory	1700	x3610
1466A	Bovine Dilemma brute force, geometry, math	800	x22305
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1438
1451D	Circle Game games, geometry, math	1700	x9283

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