Problemset - Codeforces

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bitmasks

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Problems

#	Name
865F	Egg Roulette bitmasks, brute force, divide and conquer, math, meet-in-the-middle	3300	x68
1302F	Keep talking and nobody explodes -- easy bitmasks, brute force, expression parsing		x74
1533H	Submatrices *special problem, bitmasks, data structures, dp		x83
1097H	Mateusz and an Infinite Sequence bitmasks, brute force, dp, strings	3400	x94
1423I	Lookup Tables bitmasks	3000	x105
336E	Vasily the Bear and Painting Square bitmasks, combinatorics, dp, implementation	2700	x113
1725D	Deducing Sortability binary search, bitmasks, math	2900	x119
865E	Hex Dyslexia bitmasks, brute force, dp, graphs	3300	x120
1995E2	Let Me Teach You a Lesson (Hard Version) bitmasks, data structures, dp, graphs, matrices, two pointers		x122
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x148
1835F	Good Graph bitmasks, dfs and similar, graph matchings, graphs, implementation	3500	x159
1983G	Your Loss bitmasks, brute force, dp, trees	3000	x171
1804H	Code Lock bitmasks, dp	3300	x174
796F	Sequence Recovery bitmasks, data structures, greedy	2800	x176
1973F	Maximum GCD Sum Queries bitmasks, brute force, dp, implementation, number theory	3100	x185
1861F	Four Suits binary search, bitmasks, flows, greedy	3200	x190
1439E	Cheat and Win bitmasks, data structures, games, trees	3500	x219
575C	Party bitmasks, brute force, graph matchings	2700	x219
1515H	Phoenix and Bits bitmasks, brute force, data structures, sortings	3500	x222
97D	Robot in Basement bitmasks, brute force, implementation	2700	x243
217D	Bitonix' Patrol bitmasks, brute force, combinatorics, dfs and similar, math	2900	x246
1743G	Antifibonacci Cut bitmasks, combinatorics, constructive algorithms, data structures, dp, hashing, math	3000	x250
1016G	Appropriate Team bitmasks, math, number theory	2700	x261
1970G3	Min-Fund Prison (Hard) bitmasks, dfs and similar, dp, graphs, trees	2400	x275
1799H	Tree Cutting bitmasks, dfs and similar, dp	3200	x275
1214G	Feeling Good bitmasks, data structures	3200	x286
1599J	Bob's Beautiful Array bitmasks, brute force, greedy	2600	x287
1336E2	Chiori and Doll Picking (hard version) bitmasks, brute force, combinatorics, math	3500	x297
504D	Misha and XOR bitmasks	2700	x300
1027G	X-mouse in the Campus bitmasks, math, number theory	2600	x302
1450G	Communism bitmasks, dp, trees	3500	x303
76C	Mutation bitmasks, dp, math	2700	x306
1698G	Long Binary String bitmasks, math, matrices, meet-in-the-middle, number theory	2900	x308
1292F	Nora's Toy Boxes bitmasks, combinatorics, dp	3500	x309
1556G	Gates to Another World bitmasks, data structures, dsu, two pointers	3300	x315
1748F	Circular Xor Reversal bitmasks, constructive algorithms	3000	x328
212B	Polycarpus is Looking for Good Substrings bitmasks, hashing, implementation	2300	x329
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x334
776G	Sherlock and the Encrypted Data bitmasks, combinatorics, dp	2900	x335
1773G	Game of Questions bitmasks, combinatorics, dp, fft, math, probabilities	2800	x349
718E	Matvey's Birthday bitmasks, graphs	3300	x351
1334G	Substring Search bitmasks, brute force, fft	2900	x357
107C	Arrangement bitmasks, dp	2400	x364
1036G	Sources and Sinks bitmasks, brute force, dfs and similar	2700	x367
1033F	Boolean Computer bitmasks, brute force, fft, math	2800	x369
1261F	Xor-Set bitmasks, divide and conquer, math	3100	x378
1493F	Enchanted Matrix bitmasks, interactive, number theory	2600	x384
850E	Random Elections bitmasks, brute force, divide and conquer, fft, math	2800	x384
472G	Design Tutorial: Increase the Constraints bitmasks, data structures, fft	2800	x396
1543E	The Final Pursuit bitmasks, constructive algorithms, divide and conquer, graphs, greedy, math	2700	x397
1519F	Chests and Keys bitmasks, brute force, dfs and similar, dp, flows	3200	x402
1103D	Professional layer bitmasks, dp	3100	x404
201D	Brand New Problem bitmasks, brute force, dp	2600	x404
1952I	Dark Matter bitmasks, geometry		x414
1523F	Favorite Game bitmasks, dp	3300	x416
1327G	Letters and Question Marks bitmasks, dp, string suffix structures	2800	x421
1299D	Around the World bitmasks, combinatorics, dfs and similar, dp, graphs, graphs, math, trees	3000	x425
845F	Guards In The Storehouse bitmasks, dp	2500	x430
1728G	Illumination binary search, bitmasks, brute force, combinatorics, dp, math, two pointers	2700	x440
750G	New Year and Binary Tree Paths bitmasks, brute force, combinatorics, dp	3200	x446
662A	Gambling Nim bitmasks, math, matrices, probabilities	2400	x451
354B	Game with Strings bitmasks, dp, games	2400	x451
534F	Simplified Nonogram bitmasks, dp, hashing, meet-in-the-middle	2400	x460
1386C	Joker *special problem, bitmasks, data structures, divide and conquer, dsu	2800	x462
83E	Two Subsequences bitmasks, dp	2800	x465
1936D	Bitwise Paradox binary search, bitmasks, data structures, greedy, two pointers	3100	x466
152E	Garden bitmasks, dp, graphs, trees	2500	x467
251D	Two Sets bitmasks, math	2700	x471
1392G	Omkar and Pies bitmasks, dfs and similar, dp, math, shortest paths	2900	x473
938F	Erasing Substrings bitmasks, dp, greedy	2700	x476
1326F2	Wise Men (Hard Version) bitmasks, dp, math	3200	x478
375C	Circling Round Treasures bitmasks, shortest paths	2600	x478
582E	Boolean Function bitmasks, dp, expression parsing	3000	x482
754E	Dasha and cyclic table bitmasks, brute force, fft, strings, trees	2600	x486
1906B	Button Pressing bitmasks, constructive algorithms, hashing	2600	x487
342D	Xenia and Dominoes bitmasks, dfs and similar, dp	2100	x492
1730F	Almost Sorted bitmasks, data structures, dp	2700	x513
1679F	Formalism for Formalism bitmasks, dp, math	2600	x517
1739F	Keyboard Design bitmasks, data structures, dp, string suffix structures, strings	2600	x519
1552G	A Serious Referee bitmasks, brute force, dfs and similar, sortings	3000	x519
1117F	Crisp String bitmasks, dp	2500	x522
1713F	Lost Array bitmasks, combinatorics, constructive algorithms, dp, math	2900	x524
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x536
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x539
685E	Travelling Through the Snow Queen's Kingdom bitmasks, brute force, divide and conquer, graphs	2800	x540
1152F1	Neko Rules the Catniverse (Small Version) bitmasks, dp, matrices	2800	x546
1463F	Max Correct Set bitmasks, dp, math	3100	x564
1383C	String Transformation 2 bitmasks, dp, graphs, trees	3100	x567
1221G	Graph And Numbers bitmasks, brute force, combinatorics, dp, meet-in-the-middle	2900	x572
772D	Varying Kibibits bitmasks, dp	2700	x583
1705F	Mark and the Online Exam bitmasks, constructive algorithms, interactive, probabilities	2900	x589
566E	Restoring Map bitmasks, constructive algorithms, trees	3200	x606
1994G	Minecraft bitmasks, brute force, dp, graphs, math		x615
1034E	Little C Loves 3 III bitmasks, dp, math	3200	x620
1842H	Tenzing and Random Real Numbers bitmasks, dp, graphs, math, probabilities	3000	x622
1152F2	Neko Rules the Catniverse (Large Version) bitmasks, dp, matrices	3000	x624
599E	Sandy and Nuts bitmasks, dp, trees	2600	x627
903F	Clear The Matrix bitmasks, dp	2200	x630
1770F	Koxia and Sequence bitmasks, combinatorics, dp, math, number theory	3100	x640
878D	Magic Breeding bitmasks	2900	x645

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