Problemset - Codeforces

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bitmasks

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Problems

#	Name
2035C	Alya and Permutation bitmasks, constructive algorithms, math	1400	x7920
2020C	Bitwise Balancing bitmasks, hashing, implementation, math, schedules, ternary search	1400	x14382
1988C	Increasing Sequence with Fixed OR bitmasks, constructive algorithms, greedy	1300	x16621
1981B	Turtle and an Infinite Sequence bitmasks, math	1300	x13774
1973B	Cat, Fox and the Lonely Array binary search, bitmasks, data structures, greedy, math, two pointers	1300	x14166
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x12094
1926D	Vlad and Division bitmasks, greedy	1300	x15733
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x14210
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x15211
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x17471
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x12960
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x15613
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x13182
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x11907
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x13995
1870B	Friendly Arrays bitmasks, greedy, math	1200	x14318
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x13648
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x13012
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x15337
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x14157
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x10921
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x11493
1669H	Maximal AND bitmasks, greedy, math	1300	x19091
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x17991
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x11004
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x14343
1634B	Fortune Telling bitmasks, math	1400	x16841
1630A	And Matching bitmasks, constructive algorithms	1500	x14648
1615B	And It's Non-Zero bitmasks, greedy, math	1300	x16105
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x10320
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x14855
1600J	Robot Factory bitmasks, dfs and similar	1400	x3967
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x18020
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x16817
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x19684
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x25452
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x14956
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x17430
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x14442
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x19556
1420B	Rock and Lever bitmasks, math	1200	x26216
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x19447
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x18584
1362B	Johnny and His Hobbies bitmasks, brute force	1200	x19310
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x16660
1270C	Make Good bitmasks, constructive algorithms, math	1400	x14172
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x8955
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x29225
1095C	Powers Of Two bitmasks, greedy	1400	x17021
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x16341
961C	Chessboard bitmasks, brute force, implementation	1400	x5317
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x12126
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x4636
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x14953
677C	Vanya and Label bitmasks, combinatorics, implementation, strings	1500	x6443
611B	New Year and Old Property bitmasks, brute force, implementation	1300	x10159
550B	Preparing Olympiad bitmasks, brute force	1400	x21630
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x31128
437B	The Child and Set bitmasks, greedy, implementation, sortings	1500	x9561
224B	Array bitmasks, implementation, two pointers	1500	x7358
114B	PFAST Inc. bitmasks, brute force, graphs	1500	x3717
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x15684
27B	Tournament bitmasks, brute force, dfs and similar, greedy	1300	x5384