Problemset - Codeforces

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Codeforces Round 946 (Div. 3)
3 days
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Problems

#	Name
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
1431H	Rogue-like Game *special problem, brute force, greedy, two pointers	2600	x65
1297G	M-numbers *special problem, dp, math		x65
856E	Satellites	3100	x65
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
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
1942H	Farmer John's Favorite Intern data structures, dp, flows, trees	3500	x62
1776E	Crossing the Railways data structures, dp	3500	x62
720E	Cipher implementation	3100	x62
1909H	Parallel Swaps Sort constructive algorithms, data structures	3500	x61
1666H	Heroes of Might math	3500	x60
100J	Interval Coloring *special problem, greedy, math	2400	x60
1958H	Composite Spells *special problem, dp	2600	x59
1939D	Big Persimmon *special problem, dp, games		x59
1192A	Building Skyscrapers *special problem		x59
993F	The Moral Dilemma	3200	x59
1578I	Interactive Rays geometry, interactive	3300	x58
1280F	Intergalactic Sliding Puzzle combinatorics, constructive algorithms, math	3400	x58
1510F	Fiber Shape	2800	x57
949F	Astronomy geometry, probabilities	3300	x57
1970D3	Arithmancy (Hard) interactive	3100	x56
1275E3	Контрольная сумма *special problem		x56
162G	Non-decimal sum *special problem	2000	x56
1967E2	Again Counting Arrays (Hard Version) combinatorics, dp, math	3500	x54
1912I	Innovative Washing Machine geometry, math, two pointers	3300	x54
1571I	Physical Examination *special problem, binary search, data structures	3200	x54
1488H	Build From Suffixes *special problem, combinatorics, data structures	2800	x54
1116B2	Not A, not B or not C?		x54
1938I	Symmetric Boundary	2800	x53
1666B	Budget Distribution	3300	x53
863G	Graphic Settings	3200	x53
1340E	Nastya and Bees graphs, interactive, probabilities	3000	x52
1930I	Counting Is Fun combinatorics	3500	x51
1910G	Pool Records *special problem, greedy	2700	x51
345G	Suffix Subgroup *special problem, strings	2200	x51
661G	Hungarian Notation *special problem	2200	x50
1533I	Excursions *special problem, constructive algorithms, dfs and similar, flows, graph matchings, graphs		x48
1220G	Geolocation geometry	3400	x48
1357E2	Root of quantum Fourier transform		x47
1346H	Game with Segments *special problem, data structures, games	2700	x46
1951I	Growing Trees binary search, constructive algorithms, flows, graphs, greedy	3200	x45
1938M	Zig-zag	3500	x45
1912C	Cactus Transformation constructive algorithms	3300	x45
1302E	Amazing bitset		x45
690F3	Tree of Life (hard) trees	3200	x45
1571H	Laser Beams *special problem, geometry, probabilities	2900	x44
958A3	Death Stars (hard)	3100	x44
1910J	Two Colors *special problem	2900	x43
1578D	Dragon Curve	3200	x43
1431J	Zero-XOR Array *special problem, dp	3400	x43
1431I	Cyclic Shifts *special problem, strings	2900	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
1403C	Chess Rush *special problem, combinatorics, dp, implementation, math	3200	x42
1910I	Inverse Problem *special problem, combinatorics, dp	2700	x41
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
1184C3	Heidi and the Turing Test (Hard)	3200	x40
683J	The Hero with Bombs *special problem	3000	x40
1425C	Captain of Knights math	3100	x39
683I	Loader *special problem, graphs	2500	x38
1938A	Antiparticle Antiphysics	3500	x37
1571J	Two Railroads *special problem	3000	x36
1423D	Does anyone else hate the wind?	3100	x35
1193C	Scissors and Tape *special problem, constructive algorithms, geometry		x35
1170I	Good Subsets *special problem, dp		x35
1211I	Unusual Graph *special problem, graphs	3000	x34
1578G	Game of Chance math, probabilities	3500	x33
1488I	Demonic Invasion *special problem, flows	3100	x33
1940C	Burenka and Pether *special problem, data structures, dfs and similar, divide and conquer, dsu, graphs, sortings, trees		x32
1488J	Flower Shop *special problem, data structures, fft, math	3100	x31
1967F	Next and Prev brute force, data structures, implementation	3200	x29
1599D	Bubble Popping	3200	x29
1252I	Mission Possible	3000	x29
1773L	Lisa's Sequences dp	3500	x28
1773C	Cactus Meets Torus	3500	x28
1297I	Falling Blocks *special problem, data structures		x27
1973F	Maximum GCD Sum Queries dp, implementation, number theory		x25
1302G	Keep talking and nobody explodes -- medium		x22
1958I	Equal Trees *special problem, graphs, meet-in-the-middle	3100	x15
1939A	Draw Polygon Lines *special problem, constructive algorithms, dp, geometry, interactive		x14
1958J	Necromancer *special problem	3200	x10