Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Before contest
Codeforces Round 941 (Div. 2)
2 days
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geometry

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Problems

#	Name
568D	Sign Posts brute force, geometry, math	2800	x298
975E	Hag's Khashba geometry	2600	x300
98C	Help Greg the Dwarf geometry, ternary search	2500	x300
78D	Archer's Shot binary search, geometry, math, two pointers	2300	x301
1662K	Pandemic Restrictions geometry, ternary search		x303
1046I	Say Hello geometry	2300	x303
67E	Save the City! geometry	2500	x312
1952I	Dark Matter bitmasks, geometry		x318
32E	Hide-and-Seek geometry, implementation	2400	x321
23D	Tetragon geometry, math	2600	x325
566G	Max and Min geometry	2500	x333
213D	Stars constructive algorithms, geometry	2300	x333
460E	Roland and Rose brute force, geometry, math, sortings	2700	x334
1826F	Fading into Fog geometry, interactive, math, probabilities	2800	x336
603D	Ruminations on Ruminants geometry, math	2900	x337
379E	New Year Tree Decorations geometry, schedules, sortings	2500	x337
100I	Rotation *special problem, geometry, math	1500	x338
274C	The Last Hole! brute force, geometry	2600	x346
1359F	RC Kaboom Show binary search, brute force, data structures, geometry, math	2900	x349
47E	Cannon data structures, geometry, sortings	2200	x352
598F	Cut Length geometry	2900	x354
1599G	Shortest path brute force, geometry, math, shortest paths	2700	x357
140F	New Year Snowflake geometry, sortings	2600	x359
77E	Martian Food geometry	2800	x362
198C	Delivering Carcinogen binary search, geometry	2400	x368
249D	Donkey and Stars data structures, dp, geometry, math, sortings	2700	x374
1388E	Uncle Bogdan and Projections data structures, geometry, sortings	2700	x390
1920F2	Smooth Sailing (Hard Version) binary search, data structures, dsu, geometry, graphs, trees	3000	x394
1368G	Shifting Dominoes data structures, geometry, graphs, trees	3200	x396
1866K	Keen Tree Calculation binary search, data structures, dp, geometry, graphs, implementation, trees	2500	x403
30D	King's Problem? geometry, greedy	2600	x409
776F	Sherlock's bet to Moriarty constructive algorithms, data structures, divide and conquer, geometry, graphs, implementation, trees	2800	x412
611G	New Year and Cake geometry, two pointers	2900	x422
559D	Randomizer combinatorics, geometry, probabilities	2800	x423
1175G	Yet Another Partiton Problem data structures, divide and conquer, dp, geometry, two pointers	3000	x428
377E	Cookie Clicker dp, geometry	2800	x443
681E	Runaway to a Shadow geometry, sortings	2500	x448
1575B	Building an Amusement Park binary search, geometry	2300	x450
1146H	Satanic Panic dp, geometry	2900	x463
1841F	Monocarp and a Strategic Game geometry, sortings, two pointers	2700	x469
1468I	Plane Tiling geometry, implementation, math	2500	x469
594B	Max and Bike binary search, geometry	2500	x475
409G	On a plane *special problem, geometry	2200	x499
1715F	Crop Squares constructive algorithms, geometry, interactive, math	2700	x501
698D	Limak and Shooting Points brute force, geometry, math	2600	x502
989D	A Shade of Moonlight binary search, geometry, math, sortings, two pointers	2500	x503
241C	Mirror Box geometry, implementation	2000	x507
8D	Two Friends binary search, geometry	2600	x509
1534G	A New Beginning data structures, dp, geometry, sortings	3300	x512
314D	Sereja and Straight Lines binary search, data structures, geometry, sortings, two pointers	2500	x514
1508D	Swap Pass constructive algorithms, geometry, sortings	3000	x524
1444D	Rectangular Polyline constructive algorithms, dp, geometry	2900	x534
87E	Mogohu-Rea Idol geometry	2600	x546
933C	A Colourful Prospect geometry, graphs	2700	x549
1627F	Not Splitting geometry, graphs, greedy, implementation, shortest paths	2700	x551
618E	Robot Arm data structures, geometry	2500	x585
91E	Igloo Skyscraper data structures, geometry	2500	x585
1765F	Chemistry Lab dp, geometry, probabilities	2200	x586
1366F	Jog Around The Graph binary search, dp, geometry, graphs	2700	x588
13D	Triangles dp, geometry	2600	x593
815D	Karen and Cards binary search, combinatorics, data structures, geometry	2800	x594
1019D	Large Triangle binary search, geometry, sortings	2700	x624
1776I	Spinach Pizza games, geometry, greedy, interactive	2500	x635
1025F	Disjoint Triangles geometry	2700	x637
682E	Alyona and Triangles geometry, two pointers	2600	x646
1158D	Winding polygonal line constructive algorithms, geometry, greedy, math	2600	x662
55E	Very simple problem geometry, two pointers	2500	x673
183B	Zoo brute force, geometry	1700	x677
982E	Billiard geometry, number theory	2600	x689
437E	The Child and Polygon dp, geometry	2500	x689
1195F	Geometers Anonymous Club data structures, geometry, math, sortings	2500	x693
1303G	Sum of Prefix Sums data structures, divide and conquer, geometry, trees	2700	x714
630O	Arrow geometry	2000	x722
50C	Happy Farm 5 geometry	2000	x725
196C	Paint Tree constructive algorithms, divide and conquer, geometry, sortings, trees	2200	x738
65C	Harry Potter and the Golden Snitch binary search, geometry	2100	x772
199B	Special Olympics geometry	1900	x774
277B	Set of Points constructive algorithms, geometry	2300	x780
683A	The Check of the Point *special problem, geometry	1200	x785
248C	Robo-Footballer binary search, geometry	2000	x793
385D	Bear and Floodlight bitmasks, dp, geometry	2200	x794
13B	Letter A geometry, implementation	2000	x795
535E	Tavas and Pashmaks geometry, math	2600	x797
1468G	Hobbits binary search, geometry	2500	x798
1519E	Off by One constructive algorithms, dfs and similar, geometry, graphs, sortings, trees	2700	x799
1017E	The Supersonic Rocket geometry, hashing, strings	2400	x807
678F	Lena and Queries data structures, divide and conquer, geometry	2500	x822
106E	Space Rescuers geometry, ternary search	2100	x835
250D	Building Bridge geometry, ternary search, two pointers	1900	x873
1394C	Boboniu and String binary search, geometry, ternary search	2600	x899
85E	Guard Towers binary search, dsu, geometry, graphs, sortings	2600	x904
120J	Minimum Sum divide and conquer, geometry, sortings	1900	x906
1536F	Omkar and Akmar chinese remainder theorem, combinatorics, constructive algorithms, fft, games, geometry, math, meet-in-the-middle, string suffix structures	2600	x913
1016E	Rest In The Shades binary search, geometry	2400	x928
70D	Professor's task data structures, geometry	2700	x929
195D	Analyzing Polyline geometry, math, sortings	1900	x997
1924C	Fractal Origami geometry, math, matrices	2400	x1024
1949I	Disks dfs and similar, geometry, graph matchings, graphs		x1044
630P	Area of a Star geometry	2100	x1056
333E	Summer Earnings binary search, bitmasks, brute force, geometry, sortings	2500	x1066