Problemset - Codeforces

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Codeforces Round 940 (Div. 2) and CodeCraft-23
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bitmasks

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Problems

#	Name
1915A	Odd One Out bitmasks, implementation	800	x48704
1915B	Not Quite Latin Square bitmasks, brute force, implementation	800	x37938
1527A	And Then There Were K bitmasks	800	x33699
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x30869
1698A	XOR Mixup bitmasks, brute force	800	x27692
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x26906
1421A	XORwice bitmasks, greedy, math	800	x26892
1635A	Min Or Sum bitmasks, greedy	800	x21971
1805A	We Need the Zero bitmasks, brute force	800	x20738
1688A	Cirno's Perfect Bitmasks Classroom bitmasks, brute force	800	x20557
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19030
1696A	NIT orz! bitmasks, greedy	800	x18061
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x17822
1625A	Ancient Civilization bitmasks, greedy, math	800	x16913
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	800	x15801
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x15185
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x28216
1494A	ABC String bitmasks, brute force, implementation	900	x20367
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x19117
579A	Raising Bacteria bitmasks	1000	x55584
1567B	MEXor Mixup bitmasks, greedy	1000	x21304
1632B	Roof Construction bitmasks, constructive algorithms	1000	x20665
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x18972
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x16959
467B	Fedor and New Game bitmasks, brute force, constructive algorithms, implementation	1100	x35584
535B	Tavas and SaDDas bitmasks, brute force, combinatorics, implementation	1100	x21509
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x21376
1594B	Special Numbers bitmasks, math	1100	x18742
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x17518
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x17048
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x15662
1842B	Tenzing and Books bitmasks, greedy, math	1100	x15481
1726B	Mainak and Interesting Sequence bitmasks, constructive algorithms, math	1100	x14571
1944B	Equal XOR bitmasks, constructive algorithms	1100	x13701
1202A	You Are Given Two Binary Strings... bitmasks, greedy	1100	x8731
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x26334
1420B	Rock and Lever bitmasks, math	1200	x23423
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x22473
1362B	Johnny and His Hobbies bitmasks, brute force	1200	x18235
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17243
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x15031
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x14191
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x13570
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13248
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x11170
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x28897
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x16897
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x15989
1669H	Maximal AND bitmasks, greedy, math	1300	x15967
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x15904
1615B	And It's Non-Zero bitmasks, greedy, math	1300	x15118
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x14344
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x14148
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x13434
1926D	Vlad and Division bitmasks, greedy	1300	x13196
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13055
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12505
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x12294
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11293
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10580
611B	New Year and Old Property bitmasks, brute force, implementation	1300	x9738
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x8710
27B	Tournament bitmasks, brute force, dfs and similar, greedy	1300	x5122
550B	Preparing Olympiad bitmasks, brute force	1400	x19280
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x18672
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x16918
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15725
1095C	Powers Of Two bitmasks, greedy	1400	x15621
1634B	Fortune Telling bitmasks, math	1400	x15529
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x14088
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x13912
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x13646
1270C	Make Good bitmasks, constructive algorithms, math	1400	x13551
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12308
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12133
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x10838
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10674
961C	Chessboard bitmasks, brute force, implementation	1400	x5214
1600J	Robot Factory bitmasks, dfs and similar	1400	x3765
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x18259
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x17967
1630A	And Matching bitmasks, constructive algorithms	1500	x14017
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13051
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x11723
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x10223
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9887
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x9697
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x9656
437B	The Child and Set bitmasks, greedy, implementation, sortings	1500	x9123
224B	Array bitmasks, implementation, two pointers	1500	x7138
677C	Vanya and Label bitmasks, combinatorics, implementation, strings	1500	x6266
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x4518
114B	PFAST Inc. bitmasks, brute force, graphs	1500	x3493
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13474
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12196
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11795
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x10561
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x9912
1775C	Interesting Sequence bitmasks, math	1600	x9543
1658D1	388535 (Easy Version) bitmasks, math	1600	x8725

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