Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
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Codeforces Round 941 (Div. 2)
2 days
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matrices

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Problems

#	Name
1599E	Two Arrays data structures, matrices	3200	x66
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x76
1540E	Tasty Dishes math, matrices	3500	x98
1266H	Red-Blue Graph dp, graphs, math, matrices, meet-in-the-middle	3400	x99
1184D2	Parallel Universes (Hard) math, matrices	3100	x102
446E	DZY Loves Bridges math, matrices	3100	x118
865G	Flowers and Chocolate combinatorics, math, matrices	3300	x130
267C	Berland Traffic math, matrices	2700	x159
177G2	Fibonacci Strings matrices, strings	2600	x171
86E	Long sequence brute force, math, matrices	2700	x178
1402C	Star Trek *special problem, combinatorics, dfs and similar, dp, games, graphs, matrices, trees	2600	x195
618G	Combining Slimes dp, math, matrices, probabilities	3300	x216
989E	A Trance of Nightfall dp, geometry, matrices, probabilities	2700	x228
1197F	Coloring Game dp, games, matrices	2700	x237
1474F	1 2 3 4 ... dp, math, matrices	3000	x239
472F	Design Tutorial: Change the Goal constructive algorithms, math, matrices	2700	x248
1344F	Piet's Palette matrices	3200	x252
1864H	Asterism Stream dp, math, matrices	3200	x267
832E	Vasya and Shifts matrices	2600	x277
497E	Subsequences Return dp, matrices	2900	x281
1662C	European Trip dp, graphs, math, matrices		x288
1698G	Long Binary String bitmasks, math, matrices, meet-in-the-middle, number theory	2900	x300
1672G	Cross Xor constructive algorithms, graphs, math, matrices	3200	x313
60E	Mushroom Gnomes math, matrices	2600	x316
193E	Fibonacci Number brute force, math, matrices	2900	x320
93D	Flags dp, math, matrices	2500	x333
51E	Pentagon combinatorics, graphs, matrices	2400	x363
917C	Pollywog combinatorics, dp, matrices	2900	x370
446D	DZY Loves Games math, matrices, probabilities	2800	x378
593E	Strange Calculation and Cats dp, matrices	2400	x399
107D	Crime Management dp, graphs, matrices	2400	x400
1511F	Chainword brute force, data structures, dp, matrices, string suffix structures, strings	2700	x417
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x429
923E	Perpetual Subtraction fft, math, matrices	3100	x435
498E	Stairs and Lines dp, matrices	2700	x448
736D	Permutations math, matrices	2800	x450
453D	Little Pony and Elements of Harmony dp, matrices	3000	x459
193C	Hamming Distance constructive algorithms, greedy, math, matrices	2400	x494
1916H2	Matrix Rank (Hard Version) combinatorics, dp, math, matrices, string suffix structures	2700	x499
1152F1	Neko Rules the Catniverse (Small Version) bitmasks, dp, matrices	2800	x512
946F	Fibonacci String Subsequences combinatorics, dp, matrices	2400	x528
578F	Mirror Box matrices, trees	3200	x529
351C	Jeff and Brackets dp, matrices	2500	x537
167E	Wizards and Bets dfs and similar, graphs, math, matrices	2900	x544
1025E	Colored Cubes constructive algorithms, implementation, matrices	2700	x547
385E	Bear in the Field math, matrices	2300	x554
1286D	LCC data structures, math, matrices, probabilities	3100	x555
392C	Yet Another Number Sequence combinatorics, math, matrices		x574
1411G	No Game No Life bitmasks, games, math, matrices	2700	x578
1916H1	Matrix Rank (Easy Version) brute force, combinatorics, dp, math, matrices	2700	x581
1616F	Tricolor Triangles brute force, graphs, math, matrices	2900	x582
1152F2	Neko Rules the Catniverse (Large Version) bitmasks, dp, matrices	3000	x591
1895F	Fancy Arrays combinatorics, dp, math, matrices	2600	x618
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x637
1808E2	Minibuses on Venus (medium version) combinatorics, divide and conquer, dp, matrices	2500	x641
113D	Museum math, matrices, probabilities	2700	x648
506E	Mr. Kitayuta's Gift combinatorics, dp, matrices, strings	3000	x680
1681E	Labyrinth Adventures data structures, dp, matrices, shortest paths	2600	x697
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x729
837F	Prefix Sums binary search, brute force, combinatorics, math, matrices	2400	x734
147B	Smile House binary search, graphs, matrices	2500	x741
1380F	Strange Addition data structures, dp, matrices	2600	x753
575A	Fibonotci data structures, math, matrices	2700	x756
891E	Lust combinatorics, math, matrices	3000	x840
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x842
1701F	Points combinatorics, data structures, implementation, math, matrices	2500	x880
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x944
954F	Runner's Problem dp, matrices, sortings	2100	x975
917D	Stranger Trees dp, math, matrices, trees	2600	x999
632F	Magic Matrix brute force, divide and conquer, graphs, matrices, trees	2400	x1015
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x1018
1924C	Fractal Origami geometry, math, matrices	2400	x1024
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2300	x1138
1458C	Latin Square math, matrices	2700	x1197
696D	Legen... data structures, dp, matrices, strings	2500	x1217
1814E	Chain Chips data structures, dp, matrices	2300	x1231
1427E	Xum bitmasks, constructive algorithms, math, matrices, number theory	2500	x1258
576D	Flights for Regular Customers dp, matrices	2700	x1304
717D	Dexterina’s Lab games, matrices, probabilities	1900	x1356
514E	Darth Vader and Tree dp, matrices	2200	x1361
852B	Neural Network country dp, matrices	2000	x1369
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1406
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1409
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x1464
1713E	Cross Swapping 2-sat, data structures, dsu, greedy, matrices	2400	x1506
348D	Turtles dp, matrices	2500	x1557
1101G	(Zero XOR Subset)-less math, matrices	2300	x1602
1761E	Make It Connected binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers	2400	x1717
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1721
1252K	Addition Robot data structures, math, matrices	2100	x1780
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x1835
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x1936
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1949
1335F	Robots on a Grid data structures, dfs and similar, dsu, graphs, greedy, matrices	2200	x1958
696C	PLEASE combinatorics, dp, implementation, math, matrices	2000	x2045
691E	Xor-sequences matrices	1900	x2353
1182E	Product Oriented Recurrence dp, math, matrices, number theory	2300	x2521
222E	Decoding Genome dp, matrices	1900	x2522
621E	Wet Shark and Blocks dp, matrices	2000	x2714
1538E	Funny Substrings data structures, hashing, implementation, matrices, strings	2100	x2798

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