Problemset - Codeforces

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2020 ICPC, COMPFEST 12, Indonesia Multi-Provincial Contest (Unrated, Online Mirror, ICPC Rules, Teams Preferred)
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Codeforces Round #673 (Div. 1)
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Codeforces Round #673 (Div. 2)
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matrices

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Problems

#	Name
166E	Tetrahedron dp, math, matrices	1500	x11346
485A	Factory implementation, math, matrices	1400	x5968
225C	Barcode dp, matrices	1700	x5653
337C	Quiz binary search, greedy, math, matrices, number theory	1600	x3764
1188B	Count Pairs math, matrices, number theory, two pointers	2300	x2790
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x2641
582B	Once Again... constructive algorithms, dp, matrices	1900	x2621
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x2617
1117D	Magic Gems dp, math, matrices	2100	x2376
621E	Wet Shark and Blocks dp, matrices	2000	x1846
718C	Sasha and Array data structures, math, matrices	2300	x1751
1182E	Product Oriented Recurrence dp, math, matrices, number theory	2300	x1592
696C	PLEASE combinatorics, dp, implementation, math, matrices	2000	x1489
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1440
1335F	Robots on a Grid data structures, dfs and similar, dsu, graphs, greedy, matrices	2200	x1415
222E	Decoding Genome dp, matrices	1900	x1412
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1397
1252K	Addition Robot data structures, math, matrices	2100	x1214
691E	Xor-sequences matrices	1900	x1202
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1087
717D	Dexterina’s Lab games, matrices, probabilities	1900	x995
514E	Darth Vader and Tree dp, matrices	2200	x925
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x869
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x832
1101G	(Zero XOR Subset)-less math, matrices	2300	x804
852B	Neural Network country dp, matrices	2000	x727
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x709
696D	Legen... data structures, dp, matrices, strings	2500	x655
348D	Turtles dp, matrices	2500	x642
954F	Runner's Problem dp, matrices, sortings	2100	x627
576D	Flights for Regular Customers dp, matrices	2700	x617
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2300	x608
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x605
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x562
147B	Smile House binary search, graphs, matrices	2500	x502
837F	Prefix Sums binary search, brute force, combinatorics, math, matrices	2400	x461
632F	Magic Matrix brute force, divide and conquer, graphs, matrices, trees	2400	x458
385E	Bear in the Field math, matrices	2300	x431
351C	Jeff and Brackets dp, matrices	2500	x409
1025E	Colored Cubes constructive algorithms, implementation, matrices	2700	x406
1380F	Strange Addition data structures, dp, matrices	2600	x399
917D	Stranger Trees dp, math, matrices, trees	2600	x394
575A	Fibonotci data structures, math, matrices	2700	x382
193C	Hamming Distance constructive algorithms, greedy, math, matrices	2400	x372
392C	Yet Another Number Sequence combinatorics, math, matrices		x348
113D	Museum math, matrices, probabilities	2700	x335
946F	Fibonacci String Subsequences combinatorics, dp, matrices	2400	x320
506E	Mr. Kitayuta's Gift combinatorics, dp, matrices, strings	3000	x312
593E	Strange Calculation and Cats dp, matrices	2400	x304
891E	Lust combinatorics, math, matrices	3000	x302
107D	Crime Management dp, graphs, matrices	2400	x288
498E	Stairs and Lines dp, matrices	2700	x287
736D	Permutations math, matrices	2800	x284
453D	Little Pony and Elements of Harmony dp, matrices	3000	x266
167E	Wizards and Bets dfs and similar, graphs, math, matrices	2900	x266
93D	Flags dp, math, matrices	2500	x259
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x253
1286D	LCC data structures, math, matrices, probabilities	3100	x250
51E	Pentagon combinatorics, graphs, matrices	2400	x244
60E	Mushroom Gnomes math, matrices	2600	x220
917C	Pollywog combinatorics, dp, matrices	2900	x214
578F	Mirror Box matrices, trees	3200	x208
193E	Fibonacci Number brute force, math, matrices	2900	x207
446D	DZY Loves Games math, matrices, probabilities	2800	x202
923E	Perpetual Subtraction fft, math, matrices	3100	x199
472F	Design Tutorial: Change the Goal constructive algorithms, math, matrices	2700	x198
832E	Vasya and Shifts matrices	2600	x185
1152F1	Neko Rules the Catniverse (Small Version) bitmasks, dp, matrices	2800	x183
497E	Subsequences Return dp, matrices	2900	x173
1152F2	Neko Rules the Catniverse (Large Version) bitmasks, dp, matrices	3000	x170
989E	A Trance of Nightfall dp, geometry, matrices, probabilities	2700	x170
86E	Long sequence brute force, math, matrices	2700	x143
1197F	Coloring Game dp, games, matrices	2700	x132
267C	Berland Traffic math, matrices	2700	x113
1402C	Star Trek *special problem, combinatorics, dfs and similar, dp, games, graphs, matrices, trees	2600	x108
618G	Combining Slimes dp, math, matrices, probabilities	3300	x107
1344F	Piet's Palette matrices	3200	x94
177G2	Fibonacci Strings matrices, strings	2600	x86
865G	Flowers and Chocolate combinatorics, math, matrices	3300	x83
446E	DZY Loves Bridges math, matrices	3100	x72
1375I	Cubic Lattice geometry, math, matrices, number theory	3500	x38
1266H	Red-Blue Graph dp, graphs, math, matrices, meet-in-the-middle	3400	x30
1184D2	Parallel Universes (Hard) math, matrices	3100	x21