Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
3 days
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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	x5357
1952I	Dark Matter bitmasks, geometry		x351
1949I	Disks dfs and similar, geometry, graph matchings, graphs	1800	x1158
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities	3300	x81
1942C2	Bessie's Birthday Cake (Hard Version) geometry, greedy, math	1700	x5482
1942C1	Bessie's Birthday Cake (Easy Version) geometry, greedy, math	1300	x9524
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x14
1936F	Grand Finale: Circles binary search, geometry	3300	x66
1934C	Find a Mine binary search, constructive algorithms, geometry, greedy, interactive, math	1700	x6050
1928A	Rectangle Cutting geometry, math	800	x21208
1926B	Vlad and Shapes geometry, implementation	800	x29875
1924C	Fractal Origami geometry, math, matrices	2400	x1046
1920F2	Smooth Sailing (Hard Version) binary search, data structures, dsu, geometry, graphs, trees	3000	x404
1916D	Mathematical Problem brute force, constructive algorithms, geometry, math	1700	x7905
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	x143
1886B	Fear of the Dark binary search, geometry, math	1200	x15193
1869B	2D Traveling geometry, math, shortest paths, sortings	1100	x14438
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x412
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x265
1850G	The Morning Star combinatorics, data structures, geometry, implementation, math, sortings	1500	x11247
1850E	Cardboard for Pictures binary search, geometry, implementation, math	1100	x20917
1846D	Rudolph and Christmas Tree constructive algorithms, geometry, math	1200	x18363
1845B	Come Together geometry, implementation, math	900	x20897
1842E	Tenzing and Triangle data structures, dp, geometry, greedy, math	2300	x1540
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x471
1826F	Fading into Fog geometry, interactive, math, probabilities	2800	x338
1819B	The Butcher geometry, greedy, implementation, sortings, two pointers	1900	x3433
1816A	Ian Visits Mary constructive algorithms, geometry, number theory	800	x16939
1812E	Not a Geometry Problem special problem, special problem, constructive algorithms, geometry, math		x3948
1806A	Walking Master geometry, greedy, math	800	x22340
1805C	Place for a Selfie binary search, data structures, geometry, math	1400	x12029
1799E	City Union constructive algorithms, dfs and similar, dsu, geometry, greedy, implementation, math	2300	x1156
1795B	Ideal Point brute force, geometry, greedy	900	x21180
1791B	Following Directions geometry, implementation	800	x41947
1787H	Codeforces Scoreboard binary search, data structures, dp, geometry	3300	x201
1781A	Parallel Projection geometry, math	800	x14855
1776I	Spinach Pizza games, geometry, greedy, interactive	2500	x640
1776B	Vittorio Plays with LEGO Bricks dp, geometry	2200	x1245
1765F	Chemistry Lab dp, geometry, probabilities	2200	x588
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	x104
1740B	Jumbo Extra Cheese 2 geometry, greedy, sortings	800	x13547
1736D	Equal Binary Subsequences constructive algorithms, geometry, greedy, implementation, strings	2200	x2402
1735F	Pebbles and Beads data structures, geometry	2900	x218
1730B	Meeting on the Line binary search, geometry, greedy, implementation, math, ternary search	1600	x11872
1726H	Mainak and the Bleeding Polygon binary search, geometry, implementation, math	3500	x80
1725G	Garage binary search, geometry, math	1500	x5613
1725C	Circular Mirror binary search, combinatorics, geometry, math, two pointers	2000	x1542
1715F	Crop Squares constructive algorithms, geometry, interactive, math	2700	x503
1715E	Long Way Home data structures, divide and conquer, dp, geometry, graphs, greedy, shortest paths	2400	x1607
1713A	Traveling Salesman Problem geometry, greedy, implementation	800	x21671
1710B	Rain binary search, brute force, data structures, geometry, greedy, implementation, math	2100	x2356
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1137
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	x4035
1670D	Very Suspicious binary search, brute force, geometry, greedy, implementation, math	1700	x4956
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1384
1666G	Global Warming geometry, math	3100	x133
1666C	Connect the Points brute force, constructive algorithms, geometry	1800	x3085
1662K	Pandemic Restrictions geometry, ternary search		x304
1648A	Weird Sum combinatorics, data structures, geometry, math, matrices, sortings	1400	x11786
1642A	Hard Way geometry	800	x15986
1641F	Covering Circle geometry	3500	x94
1628F	Spaceship Crisis Management binary search, data structures, geometry, sortings	3500	x84
1627F	Not Splitting geometry, graphs, greedy, implementation, shortest paths	2700	x553
1622A	Construct a Rectangle geometry, math	800	x29477
1620B	Triangles on a Rectangle geometry, greedy, math	1000	x19606
1616C	Representative Edges brute force, geometry, implementation, math	1500	x11975
1599G	Shortest path brute force, geometry, math, shortest paths	2700	x357
1598D	Training Session combinatorics, data structures, geometry, implementation, math	1700	x8410
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	x450
1572E	Polygon binary search, dp, geometry	3000	x279
1571H	Laser Beams *special problem, geometry, probabilities	2900	x44
1552C	Maximize the Intersections combinatorics, constructive algorithms, geometry, greedy, sortings	1800	x5774
1550C	Manhattan Subarrays brute force, geometry, greedy, implementation	1700	x9945
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	x1428
1539A	Contest Start combinatorics, geometry, greedy, math	1000	x19611
1536F	Omkar and Akmar chinese remainder theorem, combinatorics, constructive algorithms, fft, games, geometry, math, meet-in-the-middle, string suffix structures	2600	x913
1534G	A New Beginning data structures, dp, geometry, sortings	3300	x525
1519E	Off by One constructive algorithms, dfs and similar, geometry, graphs, sortings, trees	2700	x807
1517H	Fly Around the World dp, geometry	3500	x64
1515B	Phoenix and Puzzle brute force, geometry, math, number theory	1000	x24176
1508D	Swap Pass constructive algorithms, geometry, sortings	3000	x530
1503F	Balance the Cards constructive algorithms, data structures, divide and conquer, geometry, graphs, implementation	3500	x134
1495A	Diamond Miner geometry, greedy, math, sortings	1200	x16687
1486B	Eastern Exhibition binary search, geometry, shortest paths, sortings	1500	x15259
1477C	Nezzar and Nice Beatmap constructive algorithms, geometry, greedy, math, sortings	2200	x2210
1468I	Plane Tiling geometry, implementation, math	2500	x470
1468G	Hobbits binary search, geometry	2500	x799
1468F	Full Turn geometry, hashing, number theory	1700	x3590
1466A	Bovine Dilemma brute force, geometry, math	800	x22281
1455E	Four Points brute force, constructive algorithms, flows, geometry, greedy, implementation, math, ternary search	2400	x1435
1451D	Circle Game games, geometry, math	1700	x9266

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