Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
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geometry

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Problems

#	Name
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x14
1193C	Scissors and Tape *special problem, constructive algorithms, geometry		x35
1571H	Laser Beams *special problem, geometry, probabilities	2900	x44
1220G	Geolocation geometry	3400	x47
1912I	Innovative Washing Machine geometry, math, two pointers	3300	x53
949F	Astronomy geometry, probabilities	3300	x56
1578I	Interactive Rays geometry, interactive	3300	x58
1936F	Grand Finale: Circles binary search, geometry	3300	x62
1517H	Fly Around the World dp, geometry	3500	x63
1070M	Algoland and Berland constructive algorithms, divide and conquer, geometry	3000	x63
853E	Lada Malina data structures, geometry	3400	x63
44F	BerPaint geometry, graphs	2700	x63
1218B	Guarding warehouses data structures, geometry	3000	x67
223D	Spider geometry, graphs	3000	x67
1427H	Prison Break binary search, games, geometry, ternary search	3500	x68
1326G	Spiderweb Trees dp, geometry, trees	3500	x69
68E	Contact geometry	2900	x69
1423E	5G Antenna Towers geometry	2700	x73
73F	Plane of Tanks brute force, geometry	2900	x73
1949A	Grove brute force, dfs and similar, dp, geometry, probabilities		x75
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x75
771F	Bear and Isomorphic Points geometry, two pointers	3300	x77
1726H	Mainak and the Bleeding Polygon binary search, geometry, implementation, math	3500	x78
142E	Help Greg the Dwarf 2 geometry	3000	x78
1628F	Spaceship Crisis Management binary search, data structures, geometry, sortings	3500	x84
28E	DravDe saves the world geometry, math	2800	x84
1906D	Spaceship Exploration binary search, geometry	2800	x85
154E	Martian Colony geometry	3000	x87
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x88
1071E	Rain Protection binary search, geometry	3500	x88
1045F	Shady Lady geometry, math	3400	x91
119E	Alternative Reality geometry	2400	x92
1641F	Covering Circle geometry	3500	x93
128E	Birthday geometry, math	2900	x95
1381E	Origami geometry, math, sortings	3300	x99
1402B	Roads *special problem, geometry, sortings	2900	x102
1740I	Arranging Crystal Balls data structures, divide and conquer, divide and conquer, dp, geometry, graphs, number theory	3500	x103
799G	Cut the pie binary search, data structures, geometry	3500	x106
269E	String Theory geometry, math, strings	3100	x106
46G	Emperor's Problem geometry	2500	x107
645G	Armistice Area Apportionment binary search, geometry	3200	x110
394E	Lightbulb for Minister geometry		x114
780H	Intranet of Buses binary search, geometry, implementation, two pointers	3100	x115
744D	Hongcow Draws a Circle geometry	3200	x115
1386B	Mixture *special problem, data structures, geometry, math, sortings	2900	x117
1045E	Ancient civilizations constructive algorithms, geometry	3200	x117
388E	Fox and Meteor Shower geometry	3100	x117
696F	...Dary! binary search, geometry, two pointers	3300	x118
530H	Points in triangle *special problem, geometry	2100	x119
962G	Visible Black Areas data structures, dsu, geometry, trees	2800	x124
1503F	Balance the Cards constructive algorithms, data structures, divide and conquer, geometry, graphs, implementation	3500	x125
107E	Darts geometry, probabilities	2700	x126
1666G	Global Warming geometry, math	3100	x132
1901F	Landscaping binary search, geometry, two pointers	2900	x141
852H	Bob and stages dp, geometry	3000	x142
549E	Sasha Circle geometry, math	2700	x144
1167G	Low Budget Inception brute force, geometry	3100	x145
1578F	Framing Pictures geometry	2900	x148
887E	Little Brother binary search, geometry, sortings	2800	x161
442E	Gena and Second Distance geometry	3100	x167
372E	Drawing Circles is Fun combinatorics, geometry	3000	x168
309D	Tennis Rackets brute force, geometry	2700	x170
374E	Inna and Babies binary search, data structures, dsu, geometry, implementation	2600	x175
958E3	Guard Duty (hard) geometry	2700	x176
223E	Planar Graph flows, geometry, graphs	3000	x186
54E	Vacuum Сleaner geometry	2700	x186
690B2	Recover Polygon (medium) geometry	2600	x193
1787H	Codeforces Scoreboard binary search, data structures, dp, geometry	3300	x195
792F	Mages and Monsters data structures, geometry	3100	x198
1584G	Eligible Segments geometry	3200	x201
717I	Cowboy Beblop at his computer geometry	2800	x201
592E	BCPC binary search, geometry, two pointers	2700	x207
243D	Cubes data structures, dp, geometry, two pointers	2700	x207
420E	Playing the ball geometry	2600	x212
528E	Triangles 3000 geometry, sortings	3100	x213
1735F	Pebbles and Beads data structures, geometry	2900	x214
82E	Corridor geometry	2600	x215
497D	Gears brute force, geometry, math	2900	x222
89D	Space mines geometry	2500	x224
989E	A Trance of Nightfall dp, geometry, matrices, probabilities	2700	x227
1575M	Managing Telephone Poles data structures, geometry	2400	x232
293D	Ksusha and Square geometry, math, probabilities, two pointers	2700	x232
575E	Spectator Riots geometry	2800	x235
1548D2	Gregor and the Odd Cows (Hard) brute force, geometry, math, number theory	3300	x236
607E	Cross Sum binary search, geometry	3300	x243
62C	Inquisition geometry, implementation, sortings	2300	x246
350D	Looking for Owls binary search, data structures, geometry, hashing, sortings	2400	x252
666D	Chain Reaction brute force, geometry	3000	x257
306D	Polygon constructive algorithms, geometry	2300	x258
175E	Power Defence brute force, dp, geometry, greedy	2600	x259
1860F	Evaluate RBS data structures, geometry, implementation, math, sortings	2900	x262
886F	Symmetric Projections geometry	2900	x262
1696G	Fishingprince Plays With Array Again brute force, data structures, geometry, math	3300	x263
1446F	Line Distance binary search, data structures, geometry	3200	x267
75E	Ship's Shortest Path geometry, shortest paths	2400	x267
704E	Iron Man data structures, geometry, trees	3300	x271
220D	Little Elephant and Triangle geometry, math	2500	x271
1572E	Polygon binary search, dp, geometry	3000	x276
182A	Battlefield geometry, graphs, implementation, shortest paths	2200	x277
36C	Bowls geometry, implementation	2200	x285

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