Problemset - Codeforces

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Codeforces Round 940 (Div. 2)
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bitmasks

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Problems

#	Name
579A	Raising Bacteria bitmasks	1000	x55560
1915A	Odd One Out bitmasks, implementation	800	x48663
1915B	Not Quite Latin Square bitmasks, brute force, implementation	800	x37916
467B	Fedor and New Game bitmasks, brute force, constructive algorithms, implementation	1100	x35566
1527A	And Then There Were K bitmasks	800	x33684
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x30857
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x28895
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x28186
1698A	XOR Mixup bitmasks, brute force	800	x27685
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x26899
1421A	XORwice bitmasks, greedy, math	800	x26876
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x26297
1420B	Rock and Lever bitmasks, math	1200	x23411
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x22453
1635A	Min Or Sum bitmasks, greedy	800	x21951
535B	Tavas and SaDDas bitmasks, brute force, combinatorics, implementation	1100	x21504
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x21369
1567B	MEXor Mixup bitmasks, greedy	1000	x21296
1805A	We Need the Zero bitmasks, brute force	800	x20720
1632B	Roof Construction bitmasks, constructive algorithms	1000	x20648
1688A	Cirno's Perfect Bitmasks Classroom bitmasks, brute force	800	x20552
1494A	ABC String bitmasks, brute force, implementation	900	x20363
550B	Preparing Olympiad bitmasks, brute force	1400	x19276
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x19113
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19028
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x18963
1594B	Special Numbers bitmasks, math	1100	x18735
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x18668
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x18254
1362B	Johnny and His Hobbies bitmasks, brute force	1200	x18233
1696A	NIT orz! bitmasks, greedy	800	x18058
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x17960
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x17820
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x17506
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17241
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x17038
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x16958
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x16913
1625A	Ancient Civilization bitmasks, greedy, math	800	x16910
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x16894
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x15983
1669H	Maximal AND bitmasks, greedy, math	1300	x15961
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x15902
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	800	x15796
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15725
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x15648
1095C	Powers Of Two bitmasks, greedy	1400	x15606
1634B	Fortune Telling bitmasks, math	1400	x15521
1842B	Tenzing and Books bitmasks, greedy, math	1100	x15476
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x15162
1615B	And It's Non-Zero bitmasks, greedy, math	1300	x15112
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x15030
1726B	Mainak and Interesting Sequence bitmasks, constructive algorithms, math	1100	x14571
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x14338
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x14185
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x14144
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x14084
1630A	And Matching bitmasks, constructive algorithms	1500	x14014
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x13911
1944B	Equal XOR bitmasks, constructive algorithms	1100	x13675
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x13633
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x13553
1270C	Make Good bitmasks, constructive algorithms, math	1400	x13550
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13472
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x13424
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13244
1926D	Vlad and Division bitmasks, greedy	1300	x13177
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13052
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13046
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x12882
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12501
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12369
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12298
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x12287
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12190
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12127
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x11799
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11793
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x11712
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x11490
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11475
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11291
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x11174
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x11158
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x10833
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10669
484A	Bits bitmasks, constructive algorithms	1700	x10635
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10577
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x10535
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x10218
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x9903
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9884
611B	New Year and Old Property bitmasks, brute force, implementation	1300	x9734
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x9690
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x9633
1775C	Interesting Sequence bitmasks, math	1600	x9536
706D	Vasiliy's Multiset binary search, bitmasks, data structures, trees	1800	x9203
437B	The Child and Set bitmasks, greedy, implementation, sortings	1500	x9121
580D	Kefa and Dishes bitmasks, dp	1800	x9078
1731C	Even Subarrays bitmasks, brute force, hashing, math, number theory	1700	x8861

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