Problemset - Codeforces

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bitmasks

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Problems

#	Name
1952I	Dark Matter bitmasks, geometry		x343
718E	Matvey's Birthday bitmasks, graphs	3300	x341
776G	Sherlock and the Encrypted Data bitmasks, combinatorics, dp	2900	x329
1748F	Circular Xor Reversal bitmasks, constructive algorithms	3000	x323
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x323
212B	Polycarpus is Looking for Good Substrings bitmasks, hashing, implementation	2300	x322
1773G	Game of Questions bitmasks, combinatorics, dp, fft, math, probabilities	2800	x319
1556G	Gates to Another World bitmasks, data structures, dsu, two pointers	3300	x307
1292F	Nora's Toy Boxes bitmasks, combinatorics, dp	3500	x302
1698G	Long Binary String bitmasks, math, matrices, meet-in-the-middle, number theory	2900	x300
504D	Misha and XOR bitmasks	2700	x298
1027G	X-mouse in the Campus bitmasks, math, number theory	2600	x295
1336E2	Chiori and Doll Picking (hard version) bitmasks, brute force, combinatorics, math	3500	x287
1599J	Bob's Beautiful Array bitmasks, brute force, greedy	2600	x284
1214G	Feeling Good bitmasks, data structures	3200	x280
1799H	Tree Cutting bitmasks, dfs and similar, dp	3200	x271
76C	Mutation bitmasks, dp, math	2700	x269
1016G	Appropriate Team bitmasks, math, number theory	2700	x256
217D	Bitonix' Patrol bitmasks, brute force, combinatorics, dfs and similar, math	2900	x245
1743G	Antifibonacci Cut bitmasks, combinatorics, constructive algorithms, data structures, dp, hashing, math	3000	x244
97D	Robot in Basement bitmasks, brute force, implementation	2700	x237
1450G	Communism bitmasks, dp, trees	3500	x233
1439E	Cheat and Win bitmasks, data structures, games, trees	3500	x214
1515H	Phoenix and Bits bitmasks, brute force, data structures, sortings	3500	x212
575C	Party bitmasks, brute force, graph matchings	2700	x211
1804H	Code Lock bitmasks, dp	3300	x169
796F	Sequence Recovery bitmasks, data structures, greedy	2800	x169
1970G3	Min-Fund Prison (Hard) bitmasks, dfs and similar, dp, graphs, trees		x147
1861F	Four Suits binary search, bitmasks, flows, greedy	3200	x146
1835F	Good Graph bitmasks, dfs and similar, graph matchings, graphs, implementation	3500	x144
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x144
865E	Hex Dyslexia bitmasks, brute force, dp, graphs	3300	x119
1725D	Deducing Sortability binary search, bitmasks, math	2900	x117
336E	Vasily the Bear and Painting Square bitmasks, combinatorics, dp, implementation	2700	x109
1423I	Lookup Tables bitmasks	3000	x101
1097H	Mateusz and an Infinite Sequence bitmasks, brute force, dp, strings	3400	x93
1533H	Submatrices *special problem, bitmasks, data structures, dp		x80
1302F	Keep talking and nobody explodes -- easy bitmasks, brute force, expression parsing		x72
865F	Egg Roulette bitmasks, brute force, divide and conquer, math, meet-in-the-middle	3300	x67

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