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bitmasks

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Problems

#	Name
579A	Raising Bacteria bitmasks	1000	x56649
1915A	Odd One Out bitmasks, implementation	800	x50265
1915B	Not Quite Latin Square bitmasks, brute force, implementation	800	x38825
467B	Fedor and New Game bitmasks, brute force, constructive algorithms, implementation	1100	x36096
1527A	And Then There Were K bitmasks	800	x34051
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x31223
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x29150
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x28749
1698A	XOR Mixup bitmasks, brute force	800	x27945
1421A	XORwice bitmasks, greedy, math	800	x27369
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x27236
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x26769
1420B	Rock and Lever bitmasks, math	1200	x23825
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x22947
1635A	Min Or Sum bitmasks, greedy	800	x22158
535B	Tavas and SaDDas bitmasks, brute force, combinatorics, implementation	1100	x21699
1567B	MEXor Mixup bitmasks, greedy	1000	x21597
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x21580
1805A	We Need the Zero bitmasks, brute force	800	x21239
1632B	Roof Construction bitmasks, constructive algorithms	1000	x20958
1688A	Cirno's Perfect Bitmasks Classroom bitmasks, brute force	800	x20874
1494A	ABC String bitmasks, brute force, implementation	900	x20440
550B	Preparing Olympiad bitmasks, brute force	1400	x19589
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x19211
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x19164
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19127
1594B	Special Numbers bitmasks, math	1100	x18974
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x18807
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x18408
1362B	Johnny and His Hobbies bitmasks, brute force	1200	x18407
1696A	NIT orz! bitmasks, greedy	800	x18362
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x18163
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x17884
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x17793
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17351
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x17322
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x17100
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x17053
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x17042
1625A	Ancient Civilization bitmasks, greedy, math	800	x16969
1669H	Maximal AND bitmasks, greedy, math	1300	x16525
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x16180
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x16095
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	800	x15919
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15915
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x15909
1095C	Powers Of Two bitmasks, greedy	1400	x15851
1842B	Tenzing and Books bitmasks, greedy, math	1100	x15759
1634B	Fortune Telling bitmasks, math	1400	x15729
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x15317
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x15309
1615B	And It's Non-Zero bitmasks, greedy, math	1300	x15260
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x15260
1726B	Mainak and Interesting Sequence bitmasks, constructive algorithms, math	1100	x14687
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x14514
1944B	Equal XOR bitmasks, constructive algorithms	1100	x14429
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x14360
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x14264
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x14245
1630A	And Matching bitmasks, constructive algorithms	1500	x14109
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x14100
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x13968
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x13825
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x13770
1926D	Vlad and Division bitmasks, greedy	1300	x13750
1270C	Make Good bitmasks, constructive algorithms, math	1400	x13617
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13544
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13402
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13327
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13254
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13041
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12670
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12656
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x12637
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12454
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12278
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12267
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x12136
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x11883
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11865
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x11612
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11551
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x11485
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11412
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x11245
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x11218
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10853
484A	Bits bitmasks, constructive algorithms	1700	x10739
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x10710
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10646
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x10448
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x10182
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x10074
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x9936
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9936
1973B	Cat, Fox and the Lonely Array binary search, bitmasks, data structures, greedy, math, two pointers		x9812
611B	New Year and Old Property bitmasks, brute force, implementation	1300	x9800
1775C	Interesting Sequence bitmasks, math	1600	x9717
706D	Vasiliy's Multiset binary search, bitmasks, data structures, trees	1800	x9324
580D	Kefa and Dishes bitmasks, dp	1800	x9215

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