Problemset - Codeforces

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

#	Name
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x75
1540E	Tasty Dishes math, matrices	3500	x97
1266H	Red-Blue Graph dp, graphs, math, matrices, meet-in-the-middle	3400	x98
865G	Flowers and Chocolate combinatorics, math, matrices	3300	x129
618G	Combining Slimes dp, math, matrices, probabilities	3300	x215
1599E	Two Arrays data structures, matrices	3200	x65
1344F	Piet's Palette matrices	3200	x250
1864H	Asterism Stream dp, math, matrices	3200	x265
1672G	Cross Xor constructive algorithms, graphs, math, matrices	3200	x311
578F	Mirror Box matrices, trees	3200	x527
1184D2	Parallel Universes (Hard) math, matrices	3100	x101
446E	DZY Loves Bridges math, matrices	3100	x117
923E	Perpetual Subtraction fft, math, matrices	3100	x431
1286D	LCC data structures, math, matrices, probabilities	3100	x551
1474F	1 2 3 4 ... dp, math, matrices	3000	x232
453D	Little Pony and Elements of Harmony dp, matrices	3000	x458
1152F2	Neko Rules the Catniverse (Large Version) bitmasks, dp, matrices	3000	x586
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x632
506E	Mr. Kitayuta's Gift combinatorics, dp, matrices, strings	3000	x678
891E	Lust combinatorics, math, matrices	3000	x837
497E	Subsequences Return dp, matrices	2900	x280
1698G	Long Binary String bitmasks, math, matrices, meet-in-the-middle, number theory	2900	x299
193E	Fibonacci Number brute force, math, matrices	2900	x319
917C	Pollywog combinatorics, dp, matrices	2900	x369
167E	Wizards and Bets dfs and similar, graphs, math, matrices	2900	x540
1616F	Tricolor Triangles brute force, graphs, math, matrices	2900	x580
446D	DZY Loves Games math, matrices, probabilities	2800	x377
736D	Permutations math, matrices	2800	x448
1152F1	Neko Rules the Catniverse (Small Version) bitmasks, dp, matrices	2800	x507
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x726
267C	Berland Traffic math, matrices	2700	x158
86E	Long sequence brute force, math, matrices	2700	x177
989E	A Trance of Nightfall dp, geometry, matrices, probabilities	2700	x227
1197F	Coloring Game dp, games, matrices	2700	x236
472F	Design Tutorial: Change the Goal constructive algorithms, math, matrices	2700	x247
1511F	Chainword brute force, data structures, dp, matrices, string suffix structures, strings	2700	x414
498E	Stairs and Lines dp, matrices	2700	x447
1916H2	Matrix Rank (Hard Version) combinatorics, dp, math, matrices, string suffix structures	2700	x496
1025E	Colored Cubes constructive algorithms, implementation, matrices	2700	x545
1411G	No Game No Life bitmasks, games, math, matrices	2700	x574
1916H1	Matrix Rank (Easy Version) brute force, combinatorics, dp, math, matrices	2700	x579
113D	Museum math, matrices, probabilities	2700	x647
575A	Fibonotci data structures, math, matrices	2700	x755
1458C	Latin Square math, matrices	2700	x1193
576D	Flights for Regular Customers dp, matrices	2700	x1302
177G2	Fibonacci Strings matrices, strings	2600	x169
1402C	Star Trek *special problem, combinatorics, dfs and similar, dp, games, graphs, matrices, trees	2600	x195
832E	Vasya and Shifts matrices	2600	x276
60E	Mushroom Gnomes math, matrices	2600	x314
1895F	Fancy Arrays combinatorics, dp, math, matrices	2600	x615
1681E	Labyrinth Adventures data structures, dp, matrices, shortest paths	2600	x696
1380F	Strange Addition data structures, dp, matrices	2600	x751
917D	Stranger Trees dp, math, matrices, trees	2600	x996
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x1462
93D	Flags dp, math, matrices	2500	x331
351C	Jeff and Brackets dp, matrices	2500	x536
1808E2	Minibuses on Venus (medium version) combinatorics, divide and conquer, dp, matrices	2500	x640
147B	Smile House binary search, graphs, matrices	2500	x740
1701F	Points combinatorics, data structures, implementation, math, matrices	2500	x879
696D	Legen... data structures, dp, matrices, strings	2500	x1212
1427E	Xum bitmasks, constructive algorithms, math, matrices, number theory	2500	x1256
348D	Turtles dp, matrices	2500	x1553
51E	Pentagon combinatorics, graphs, matrices	2400	x362
593E	Strange Calculation and Cats dp, matrices	2400	x397
107D	Crime Management dp, graphs, matrices	2400	x398
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x428
193C	Hamming Distance constructive algorithms, greedy, math, matrices	2400	x493
946F	Fibonacci String Subsequences combinatorics, dp, matrices	2400	x527
837F	Prefix Sums binary search, brute force, combinatorics, math, matrices	2400	x732
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x840
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x941
632F	Magic Matrix brute force, divide and conquer, graphs, matrices, trees	2400	x1011
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x1017
1924C	Fractal Origami geometry, math, matrices	2400	x1021
1713E	Cross Swapping 2-sat, data structures, dsu, greedy, matrices	2400	x1504
1761E	Make It Connected binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers	2400	x1715
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x1831
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x1931
385E	Bear in the Field math, matrices	2300	x552
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2300	x1135
1814E	Chain Chips data structures, dp, matrices	2300	x1220
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1402
1101G	(Zero XOR Subset)-less math, matrices	2300	x1597
1182E	Product Oriented Recurrence dp, math, matrices, number theory	2300	x2516
718C	Sasha and Array data structures, math, matrices	2300	x3355
1188B	Count Pairs math, matrices, number theory, two pointers	2300	x4198
514E	Darth Vader and Tree dp, matrices	2200	x1354
1335F	Robots on a Grid data structures, dfs and similar, dsu, graphs, greedy, matrices	2200	x1955
954F	Runner's Problem dp, matrices, sortings	2100	x972
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1406
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1721
1252K	Addition Robot data structures, math, matrices	2100	x1778
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1947
1538E	Funny Substrings data structures, hashing, implementation, matrices, strings	2100	x2794
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x3549
1117D	Magic Gems dp, math, matrices	2100	x3997
852B	Neural Network country dp, matrices	2000	x1366
696C	PLEASE combinatorics, dp, implementation, math, matrices	2000	x2044
621E	Wet Shark and Blocks dp, matrices	2000	x2712
717D	Dexterina’s Lab games, matrices, probabilities	1900	x1354

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