Problemset - Codeforces

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bitmasks

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Problems

#	Name
579A	Raising Bacteria bitmasks	1000	x58690
1915A	Odd One Out bitmasks, implementation	800	x53290
1915B	Not Quite Latin Square bitmasks, brute force, implementation	800	x40467
467B	Fedor and New Game bitmasks, brute force, constructive algorithms, implementation	1100	x36907
1527A	And Then There Were K bitmasks	800	x34882
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x32210
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x30109
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x29934
1698A	XOR Mixup bitmasks, brute force	800	x28547
1421A	XORwice bitmasks, greedy, math	800	x28250
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x27908
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x27755
1420B	Rock and Lever bitmasks, math	1200	x24794
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x23967
1635A	Min Or Sum bitmasks, greedy	800	x22640
1567B	MEXor Mixup bitmasks, greedy	1000	x22327
1805A	We Need the Zero bitmasks, brute force	800	x22239
535B	Tavas and SaDDas bitmasks, brute force, combinatorics, implementation	1100	x22126
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x22082
1632B	Roof Construction bitmasks, constructive algorithms	1000	x21664
1688A	Cirno's Perfect Bitmasks Classroom bitmasks, brute force	800	x21285
1979B	XOR Sequences bitmasks, greedy	1000	x20979
1494A	ABC String bitmasks, brute force, implementation	900	x20636
550B	Preparing Olympiad bitmasks, brute force	1400	x20315
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19643
1594B	Special Numbers bitmasks, math	1100	x19588
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x19458
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19382
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x19105
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x18861
1362B	Johnny and His Hobbies bitmasks, brute force	1200	x18810
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x18805
1696A	NIT orz! bitmasks, greedy	800	x18601
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x18517
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x18079
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x17973
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x17889
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17617
1669H	Maximal AND bitmasks, greedy, math	1300	x17591
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x17400
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x17314
1625A	Ancient Civilization bitmasks, greedy, math	800	x17096
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x16979
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x16613
1977B	Binary Colouring bitmasks, constructive algorithms, greedy, math	1100	x16492
1842B	Tenzing and Books bitmasks, greedy, math	1100	x16450
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x16428
1095C	Powers Of Two bitmasks, greedy	1400	x16397
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x16363
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	800	x16345
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x16257
1634B	Fortune Telling bitmasks, math	1400	x16142
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x15679
1615B	And It's Non-Zero bitmasks, greedy, math	1300	x15580
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x15548
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x15517
1944B	Equal XOR bitmasks, constructive algorithms	1100	x15474
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x15005
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x14927
1726B	Mainak and Interesting Sequence bitmasks, constructive algorithms, math	1100	x14924
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x14723
1926D	Vlad and Division bitmasks, greedy	1300	x14689
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x14545
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x14377
1630A	And Matching bitmasks, constructive algorithms	1500	x14345
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x14266
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x14143
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x14011
1270C	Make Good bitmasks, constructive algorithms, math	1400	x13939
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13864
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13834
1988C	Increasing Sequence with Fixed OR bitmasks, constructive algorithms, greedy	1300	x13732
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13720
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13438
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x13350
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x13328
1994B	Fun Game bitmasks, constructive algorithms, greedy, math		x13233
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x13108
1973B	Cat, Fox and the Lonely Array binary search, bitmasks, data structures, greedy, math, two pointers	1300	x12900
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x12863
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12612
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12580
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12540
1981B	Turtle and an Infinite Sequence bitmasks, math	1300	x12379
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x12222
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x12139
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x12022
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x11999
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x11929
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11767
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11741
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x11602
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x11296
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x11148
484A	Bits bitmasks, constructive algorithms	1700	x11006
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x10947
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x10898
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10806
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x10378
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x10363

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