Problemset - Codeforces

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Problems

#	Name
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x19211
1648A	Weird Sum combinatorics, data structures, geometry, math, matrices, sortings	1400	x11827
485A	Factory implementation, math, matrices	1400	x8102
166E	Tetrahedron dp, math, matrices	1500	x20029
1513C	Add One dp, matrices	1600	x13274
337C	Quiz binary search, greedy, math, matrices, number theory	1600	x4777
225C	Barcode dp, matrices	1700	x8779
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8347
1635D	Infinite Set bitmasks, dp, math, matrices, number theory, strings	1800	x6021
1012B	Chemical table constructive algorithms, dfs and similar, dsu, graphs, matrices	1900	x3657
582B	Once Again... constructive algorithms, dp, matrices	1900	x3307
222E	Decoding Genome dp, matrices	1900	x2556
691E	Xor-sequences matrices	1900	x2377
717D	Dexterina’s Lab games, matrices, probabilities	1900	x1374
621E	Wet Shark and Blocks dp, matrices	2000	x2733
696C	PLEASE combinatorics, dp, implementation, math, matrices	2000	x2052
852B	Neural Network country dp, matrices	2000	x1379
1970E2	Trails (Medium) dp, matrices	2000	x677
1117D	Magic Gems dp, math, matrices	2100	x4025
1332E	Height All the Same combinatorics, constructive algorithms, math, matrices	2100	x3610
1538E	Funny Substrings data structures, hashing, implementation, matrices, strings	2100	x2810
1023E	Down or Right constructive algorithms, interactive, matrices	2100	x1956
1252K	Addition Robot data structures, math, matrices	2100	x1790
551D	GukiZ and Binary Operations combinatorics, implementation, math, matrices, number theory	2100	x1724
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1419
954F	Runner's Problem dp, matrices, sortings	2100	x978
1335F	Robots on a Grid data structures, dfs and similar, dsu, graphs, greedy, matrices	2200	x1992
514E	Darth Vader and Tree dp, matrices	2200	x1368
1970E3	Trails (Hard) dp, matrices	2200	x388
1188B	Count Pairs math, matrices, number theory, two pointers	2300	x4305
718C	Sasha and Array data structures, math, matrices	2300	x3390
1182E	Product Oriented Recurrence dp, math, matrices, number theory	2300	x2531
1101G	(Zero XOR Subset)-less math, matrices	2300	x1610
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1418
1814E	Chain Chips data structures, dp, matrices	2300	x1254
1151F	Sonya and Informatics combinatorics, dp, matrices, probabilities	2300	x1144
385E	Bear in the Field math, matrices	2300	x559
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x1944
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x1882
1761E	Make It Connected binary search, brute force, constructive algorithms, dsu, graphs, greedy, matrices, trees, two pointers	2400	x1738
1713E	Cross Swapping 2-sat, data structures, dsu, greedy, matrices	2400	x1520
1924C	Fractal Origami geometry, math, matrices	2400	x1049
632F	Magic Matrix brute force, divide and conquer, graphs, matrices, trees	2400	x1028
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x1020
1106F	Lunar New Year and a Recursive Sequence math, matrices, number theory	2400	x949
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x844
837F	Prefix Sums binary search, brute force, combinatorics, math, matrices	2400	x741
946F	Fibonacci String Subsequences combinatorics, dp, matrices	2400	x529
193C	Hamming Distance constructive algorithms, greedy, math, matrices	2400	x496
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x429
107D	Crime Management dp, graphs, matrices	2400	x400
593E	Strange Calculation and Cats dp, matrices	2400	x399
51E	Pentagon combinatorics, graphs, matrices	2400	x367
348D	Turtles dp, matrices	2500	x1574
1427E	Xum bitmasks, constructive algorithms, math, matrices, number theory	2500	x1266
696D	Legen... data structures, dp, matrices, strings	2500	x1236
1701F	Points combinatorics, data structures, implementation, math, matrices	2500	x889
147B	Smile House binary search, graphs, matrices	2500	x745
1808E2	Minibuses on Venus (medium version) combinatorics, divide and conquer, dp, matrices	2500	x650
351C	Jeff and Brackets dp, matrices	2500	x539
93D	Flags dp, math, matrices	2500	x334
750E	New Year and Old Subsequence data structures, divide and conquer, dp, matrices	2600	x1468
917D	Stranger Trees dp, math, matrices, trees	2600	x1011
1380F	Strange Addition data structures, dp, matrices	2600	x753
1681E	Labyrinth Adventures data structures, dp, matrices, shortest paths	2600	x699
1895F	Fancy Arrays combinatorics, dp, math, matrices	2600	x632
60E	Mushroom Gnomes math, matrices	2600	x316
832E	Vasya and Shifts matrices	2600	x279
1402C	Star Trek *special problem, combinatorics, dfs and similar, dp, games, graphs, matrices, trees	2600	x198
177G2	Fibonacci Strings matrices, strings	2600	x171
576D	Flights for Regular Customers dp, matrices	2700	x1308
1458C	Latin Square math, matrices	2700	x1200
575A	Fibonotci data structures, math, matrices	2700	x766
113D	Museum math, matrices, probabilities	2700	x652
1916H1	Matrix Rank (Easy Version) brute force, combinatorics, dp, math, matrices	2700	x584
1411G	No Game No Life bitmasks, games, math, matrices	2700	x580
1025E	Colored Cubes constructive algorithms, implementation, matrices	2700	x548
1916H2	Matrix Rank (Hard Version) combinatorics, dp, math, matrices, string suffix structures	2700	x502
498E	Stairs and Lines dp, matrices	2700	x450
1511F	Chainword brute force, data structures, dp, matrices, string suffix structures, strings	2700	x418
472F	Design Tutorial: Change the Goal constructive algorithms, math, matrices	2700	x249
1197F	Coloring Game dp, games, matrices	2700	x240
989E	A Trance of Nightfall dp, geometry, matrices, probabilities	2700	x228
86E	Long sequence brute force, math, matrices	2700	x179
267C	Berland Traffic math, matrices	2700	x159
1919F2	Wine Factory (Hard Version) data structures, dp, flows, greedy, matrices	2800	x743
1152F1	Neko Rules the Catniverse (Small Version) bitmasks, dp, matrices	2800	x517
736D	Permutations math, matrices	2800	x451
446D	DZY Loves Games math, matrices, probabilities	2800	x379
1616F	Tricolor Triangles brute force, graphs, math, matrices	2900	x584
167E	Wizards and Bets dfs and similar, graphs, math, matrices	2900	x546
917C	Pollywog combinatorics, dp, matrices	2900	x375
193E	Fibonacci Number brute force, math, matrices	2900	x322
1698G	Long Binary String bitmasks, math, matrices, meet-in-the-middle, number theory	2900	x301
497E	Subsequences Return dp, matrices	2900	x281
891E	Lust combinatorics, math, matrices	3000	x863
506E	Mr. Kitayuta's Gift combinatorics, dp, matrices, strings	3000	x685
1844G	Tree Weights bitmasks, constructive algorithms, data structures, dfs and similar, implementation, math, matrices, number theory, trees	3000	x645
1152F2	Neko Rules the Catniverse (Large Version) bitmasks, dp, matrices	3000	x597
453D	Little Pony and Elements of Harmony dp, matrices	3000	x459

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