Problemset - Codeforces

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Educational Codeforces Round 176 (Rated for Div. 2)
08:36:24
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bitmasks

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Problems

#	Name
579A	Raising Bacteria bitmasks	1000	x65581
1915A	Odd One Out bitmasks, implementation	800	x63835
1915B	Not Quite Latin Square bitmasks, brute force, implementation	800	x44806
467B	Fedor and New Game bitmasks, brute force, constructive algorithms, implementation	1100	x38957
1527A	And Then There Were K bitmasks	800	x37227
1843C	Sum in Binary Tree bitmasks, combinatorics, math, trees	800	x35160
1559A	Mocha and Math bitmasks, constructive algorithms, math	900	x34242
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x32243
1421A	XORwice bitmasks, greedy, math	800	x30907
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x30732
1698A	XOR Mixup bitmasks, brute force	800	x30191
1829C	Mr. Perfectly Fine bitmasks, greedy, implementation	800	x30032
1420B	Rock and Lever bitmasks, math	1200	x27942
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x27081
1805A	We Need the Zero bitmasks, brute force	800	x26968
1567B	MEXor Mixup bitmasks, greedy	1000	x24953
1632B	Roof Construction bitmasks, constructive algorithms	1000	x24007
1979B	XOR Sequences bitmasks, greedy	1000	x23889
1635A	Min Or Sum bitmasks, greedy	800	x23664
2020A	Find Minimum Operations bitmasks, brute force, greedy, math, number theory	800	x23364
535B	Tavas and SaDDas bitmasks, brute force, combinatorics, implementation	1100	x23232
1840B	Binary Cafe bitmasks, combinatorics, math	1100	x23163
550B	Preparing Olympiad bitmasks, brute force	1400	x22779
1688A	Cirno's Perfect Bitmasks Classroom bitmasks, brute force	800	x22154
1494A	ABC String bitmasks, brute force, implementation	900	x21207
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x21118
1669H	Maximal AND bitmasks, greedy, math	1300	x21065
1847B	Hamon Odyssey bitmasks, greedy, two pointers	1000	x20779
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x20731
1594B	Special Numbers bitmasks, math	1100	x20501
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x20293
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x20233
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x20050
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x20007
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x19956
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x19908
1362B	Johnny and His Hobbies bitmasks, brute force	1200	x19799
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x19514
1696A	NIT orz! bitmasks, greedy	800	x19158
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x18739
1842B	Tenzing and Books bitmasks, greedy, math	1100	x18645
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x18566
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x18528
1977B	Binary Colouring bitmasks, constructive algorithms, greedy, math	1100	x18505
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x18463
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x18399
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x18032
1988C	Increasing Sequence with Fixed OR bitmasks, constructive algorithms, greedy	1300	x17965
1634B	Fortune Telling bitmasks, math	1400	x17829
1095C	Powers Of Two bitmasks, greedy	1400	x17696
1994B	Fun Game bitmasks, constructive algorithms, greedy, math	1100	x17679
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	800	x17533
1625A	Ancient Civilization bitmasks, greedy, math	800	x17482
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x17393
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x17306
1991B	AND Reconstruction bitmasks, constructive algorithms, greedy	1100	x17280
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x17120
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x16961
1944B	Equal XOR bitmasks, constructive algorithms	1100	x16878
1615B	And It's Non-Zero bitmasks, greedy, math	1300	x16613
1926D	Vlad and Division bitmasks, greedy	1300	x16496
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x16364
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x16128
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x16079
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x15965
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x15899
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x15867
2020C	Bitwise Balancing bitmasks, hashing, implementation, math, schedules, ternary search	1400	x15783
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x15771
1726B	Mainak and Interesting Sequence bitmasks, constructive algorithms, math	1100	x15764
2074C	XOR and Triangle bitmasks, brute force, geometry, greedy, probabilities		x15533
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x15362
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x15212
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x15211
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x15182
1630A	And Matching bitmasks, constructive algorithms	1500	x15137
1973B	Cat, Fox and the Lonely Array binary search, bitmasks, data structures, greedy, math, two pointers	1300	x15004
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x14863
1870B	Friendly Arrays bitmasks, greedy, math	1200	x14769
2072C	Creating Keys for StORages Has Become My Main Skill bitmasks, constructive algorithms, greedy	1200	x14706
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x14699
1981B	Turtle and an Infinite Sequence bitmasks, math	1300	x14692
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x14516
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x14436
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x14409
1270C	Make Good bitmasks, constructive algorithms, math	1400	x14382
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x14125
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x13519
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x13499
1554B	Cobb bitmasks, brute force, greedy, math	1700	x13095
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x13087
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x13004
2048C	Kevin and Binary Strings bitmasks, brute force, greedy, implementation, strings	1200	x12949
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x12710
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x12549
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x12468
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x12459
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x12437
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x12370
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x12284

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