Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
04:51:13
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Before contest
Codeforces Round 941 (Div. 2)
04:51:13
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Problems

#	Name
1545E1	AquaMoon and Time Stop (easy version) data structures, dp	3500	x74
1423E	5G Antenna Towers geometry	2700	x74
100H	Battleship *special problem, dfs and similar, implementation	2100	x74
73F	Plane of Tanks brute force, geometry	2900	x74
1909I	Short Permutation Problem combinatorics, dp, fft, math	1900	x73
1491I	Ruler Of The Zoo brute force, data structures	3500	x73
1116D6	Hessenberg matrix		x73
1943F	Minimum Hamming Distance dp	3500	x72
1868E	Min-Sum-Max constructive algorithms, dp, greedy	3500	x72
1750H	BinaryStringForces constructive algorithms, data structures, dp	3500	x72
1302F	Keep talking and nobody explodes -- easy bitmasks, brute force, expression parsing		x72
923F	Public Service constructive algorithms, graphs, trees	3200	x72
153E	Euclidean Distance *special problem	2100	x72
72D	Perse-script *special problem, expression parsing	2300	x72
1874G	Jellyfish and Inscryption dp	3500	x71
1863H	Goldberg Machine 3 dp, trees	3500	x71
1571G	A Battle Against a Dragon *special problem, data structures, dp	2500	x71
162I	Truncatable primes *special problem	2000	x71
1326G	Spiderweb Trees dp, geometry, trees	3500	x70
68E	Contact geometry	2900	x70
1863I	Redundant Routes constructive algorithms, dp, trees	3500	x69
1654H	Three Minimums combinatorics, constructive algorithms, divide and conquer, dp, fft, math	3500	x69
1427H	Prison Break binary search, games, geometry, ternary search	3500	x69
737F	Dirty plates constructive algorithms, math	3300	x69
1889F	Doremy's Average Tree data structures, dp, greedy, trees	3500	x68
1868F	LIS? data structures, greedy, implementation	3500	x68
1218B	Guarding warehouses data structures, geometry	3000	x68
1170G	Graph Decomposition *special problem, graphs		x68
223D	Spider geometry, graphs	3000	x68
1310F	Bad Cryptography math, number theory	3400	x67
865F	Egg Roulette bitmasks, brute force, divide and conquer, math, meet-in-the-middle	3300	x67
1599E	Two Arrays data structures, matrices	3200	x66
1423A	Wakanda Forever	3500	x66
1211G	King's Path *special problem, math, trees	2500	x66
164E	Polycarpus and Tasks	3100	x66
1949H	Division Avoidance greedy, math		x65
1297G	M-numbers *special problem, dp, math		x65
856E	Satellites	3100	x65
1936F	Grand Finale: Circles binary search, geometry	3300	x64
1776N	Count Permutations math	3500	x64
1776K	Uniform Chemistry dp, math	3200	x64
1580E	Railway Construction brute force, constructive algorithms, data structures, graphs, shortest paths	3400	x64
1517H	Fly Around the World dp, geometry	3500	x64
1431H	Rogue-like Game *special problem, brute force, greedy, two pointers	2600	x64
1070M	Algoland and Berland constructive algorithms, divide and conquer, geometry	3000	x64
853E	Lada Malina data structures, geometry	3400	x64
175F	Gnomes of Might and Magic data structures, graphs, implementation, shortest paths	3000	x64
111E	Petya and Rectangle	2900	x64
44F	BerPaint geometry, graphs	2700	x64
661H	Rotate Matrix *special problem	2400	x63
720E	Cipher implementation	3100	x62
1776E	Crossing the Railways data structures, dp	3500	x61
1666H	Heroes of Might math	3500	x60
100J	Interval Coloring *special problem, greedy, math	2400	x60
1939D	Big Persimmon *special problem, dp, games		x59
1192A	Building Skyscrapers *special problem		x59
993F	The Moral Dilemma	3200	x59
1909H	Parallel Swaps Sort constructive algorithms, data structures	3500	x58
1578I	Interactive Rays geometry, interactive	3300	x58
1510F	Fiber Shape	2800	x57
949F	Astronomy geometry, probabilities	3300	x57
1280F	Intergalactic Sliding Puzzle combinatorics, constructive algorithms, math	3400	x56
1275E3	Контрольная сумма *special problem		x56
162G	Non-decimal sum *special problem	2000	x55
1942H	Farmer John's Favorite Intern data structures, dp, flows, trees	3500	x54
1912I	Innovative Washing Machine geometry, math, two pointers	3300	x54
1571I	Physical Examination *special problem, binary search, data structures	3200	x54
1666B	Budget Distribution	3300	x53
1116B2	Not A, not B or not C?		x53
863G	Graphic Settings	3200	x53
1488H	Build From Suffixes *special problem, combinatorics, data structures	2800	x52
1340E	Nastya and Bees graphs, interactive, probabilities	3000	x52
1938I	Symmetric Boundary	2800	x51
345G	Suffix Subgroup *special problem, strings	2200	x51
661G	Hungarian Notation *special problem	2200	x50
1930I	Counting Is Fun combinatorics	3500	x49
1910G	Pool Records *special problem, greedy	2700	x49
1220G	Geolocation geometry	3400	x48
1533I	Excursions *special problem, constructive algorithms, dfs and similar, flows, graph matchings, graphs		x47
1357E2	Root of quantum Fourier transform		x47
1346H	Game with Segments *special problem, data structures, games	2700	x46
1912C	Cactus Transformation constructive algorithms	3300	x45
1302E	Amazing bitset		x45
690F3	Tree of Life (hard) trees	3200	x45
1938M	Zig-zag	3500	x44
1571H	Laser Beams *special problem, geometry, probabilities	2900	x44
958A3	Death Stars (hard)	3100	x44
1578D	Dragon Curve	3200	x43
1346I	Pac-Man 2.0 *special problem, dp	2900	x43
1170H	Longest Saw *special problem, constructive algorithms		x43
530I	Different variables *special problem	2500	x43
345F	Superstitions Inspection *special problem	2700	x43
345E	Black Cat Rush *special problem	2700	x43
1910J	Two Colors *special problem	2900	x42
1431J	Zero-XOR Array *special problem, dp	3400	x42
1431I	Cyclic Shifts *special problem, strings	2900	x42
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x42
1533J	Pawns *special problem		x41
1211H	Road Repair in Treeland *special problem, binary search, dp, trees	3100	x41
1297H	Paint the String *special problem, dp, strings		x40