Problemset - Codeforces

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Codeforces Round #672 (Div. 2)
3 days

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Difficulty: —

matrices

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Problems

#	Name
1402C	Star Trek *special problem, combinatorics, dfs and similar, dp, games, graphs, matrices, trees	2600	x106
1380F	Strange Addition data structures, dp, matrices	2600	x398
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x38
1344F	Piet's Palette matrices	3200	x94
1335F	Robots on a Grid data structures, dfs and similar, dsu, graphs, greedy, matrices	2200	x1413
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x2614
1286D	LCC data structures, math, matrices, probabilities	3100	x249
1266H	Red-Blue Graph dp, graphs, math, matrices, meet-in-the-middle	3400	x29
1252K	Addition Robot data structures, math, matrices	2100	x1210
1197F	Coloring Game dp, games, matrices	2700	x132
1184D2	Parallel Universes (Hard) math, matrices	3100	x21
1188B	Count Pairs math, matrices, number theory, two pointers	2300	x2788
1182E	Product Oriented Recurrence dp, math, matrices, number theory	2300	x1590
1152F2	Neko Rules the Catniverse (Large Version) bitmasks, dp, matrices	3000	x170
1152F1	Neko Rules the Catniverse (Small Version) bitmasks, dp, matrices	2800	x183
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2300	x605
1117D	Magic Gems dp, math, matrices	2100	x2372
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x562
1101G	(Zero XOR Subset)-less math, matrices	2300	x803
1025E	Colored Cubes constructive algorithms, implementation, matrices	2700	x403
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1438
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x2638
989E	A Trance of Nightfall dp, geometry, matrices, probabilities	2700	x170
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x824
954F	Runner's Problem dp, matrices, sortings	2100	x627
923E	Perpetual Subtraction fft, math, matrices	3100	x198
946F	Fibonacci String Subsequences combinatorics, dp, matrices	2400	x320
917D	Stranger Trees dp, math, matrices, trees	2600	x394
917C	Pollywog combinatorics, dp, matrices	2900	x214
891E	Lust combinatorics, math, matrices	3000	x302
865G	Flowers and Chocolate combinatorics, math, matrices	3300	x83
852B	Neural Network country dp, matrices	2000	x727
837F	Prefix Sums binary search, brute force, combinatorics, math, matrices	2400	x461
832E	Vasya and Shifts matrices	2600	x185
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1087
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x709
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x866
736D	Permutations math, matrices	2800	x283
718C	Sasha and Array data structures, math, matrices	2300	x1751
717D	Dexterina’s Lab games, matrices, probabilities	1900	x994
696D	Legen... data structures, dp, matrices, strings	2500	x655
696C	PLEASE combinatorics, dp, implementation, math, matrices	2000	x1489
691E	Xor-sequences matrices	1900	x1199
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x240
632F	Magic Matrix brute force, divide and conquer, graphs, matrices, trees	2400	x455
621E	Wet Shark and Blocks dp, matrices	2000	x1844
618G	Combining Slimes dp, math, matrices, probabilities	3300	x107
593E	Strange Calculation and Cats dp, matrices	2400	x303
582B	Once Again... constructive algorithms, dp, matrices	1900	x2618
578F	Mirror Box matrices, trees	3200	x208
576D	Flights for Regular Customers dp, matrices	2700	x616
575A	Fibonotci data structures, math, matrices	2700	x379
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1397
514E	Darth Vader and Tree dp, matrices	2200	x924
506E	Mr. Kitayuta's Gift combinatorics, dp, matrices, strings	3000	x310
498E	Stairs and Lines dp, matrices	2700	x286
497E	Subsequences Return dp, matrices	2900	x173
485A	Factory implementation, math, matrices	1400	x5961
472F	Design Tutorial: Change the Goal constructive algorithms, math, matrices	2700	x198
453D	Little Pony and Elements of Harmony dp, matrices	3000	x265
446E	DZY Loves Bridges math, matrices	3100	x72
446D	DZY Loves Games math, matrices, probabilities	2800	x202
392C	Yet Another Number Sequence combinatorics, math, matrices		x347
385E	Bear in the Field math, matrices	2300	x425
351C	Jeff and Brackets dp, matrices	2500	x408
348D	Turtles dp, matrices	2500	x641
337C	Quiz binary search, greedy, math, matrices, number theory	1600	x3758
267C	Berland Traffic math, matrices	2700	x113
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x605
225C	Barcode dp, matrices	1700	x5640
222E	Decoding Genome dp, matrices	1900	x1412
193E	Fibonacci Number brute force, math, matrices	2900	x206
193C	Hamming Distance constructive algorithms, greedy, math, matrices	2400	x372
177G2	Fibonacci Strings matrices, strings	2600	x86
167E	Wizards and Bets dfs and similar, graphs, math, matrices	2900	x266
166E	Tetrahedron dp, math, matrices	1500	x11319
147B	Smile House binary search, graphs, matrices	2500	x502
113D	Museum math, matrices, probabilities	2700	x335
107D	Crime Management dp, graphs, matrices	2400	x288
93D	Flags dp, math, matrices	2500	x259
86E	Long sequence brute force, math, matrices	2700	x143
60E	Mushroom Gnomes math, matrices	2600	x220
51E	Pentagon combinatorics, graphs, matrices	2400	x244