Problemset - Codeforces

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Codeforces Round 945 (Div. 2)
00:59:53

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bitmasks

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Problems

#	Name
1792D	Fixed Prefix Permutations binary search, bitmasks, data structures, hashing, math, sortings	1700	x5906
1329B	Dreamoon Likes Sequences bitmasks, combinatorics, math	1700	x6392
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6474
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6602
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6621
1760G	SlavicG's Favorite Problem bitmasks, dfs and similar, graphs	1700	x6921
1883E	Look Back bitmasks, greedy	1700	x7086
1217C	The Number Of Good Substrings binary search, bitmasks, brute force	1700	x7094
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x7114
1051D	Bicolorings bitmasks, dp	1700	x7151
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x7445
1340B	Nastya and Scoreboard bitmasks, dp, graphs, greedy	1700	x7574
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x7630
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x7683
1332D	Walk on Matrix bitmasks, constructive algorithms, math	1700	x7872
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8343
1731C	Even Subarrays bitmasks, brute force, hashing, math, number theory	1700	x8987
484A	Bits bitmasks, constructive algorithms	1700	x10709
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x11238
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11543
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x11602
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x11878
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12439
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13015
291C	Network Mask *special problem, bitmasks, brute force, implementation	1600	x1665
243A	The Brand New Function bitmasks	1600	x3799
244B	Undoubtedly Lucky Numbers bitmasks, brute force, dfs and similar	1600	x4382
812B	Sagheer, the Hausmeister bitmasks, brute force, dp	1600	x5074
878A	Short Program bitmasks, constructive algorithms	1600	x5293
1778C	Flexible String bitmasks, brute force, strings	1600	x7693
913C	Party Lemonade bitmasks, dp, greedy	1600	x7744
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8136
1225C	p-binary bitmasks, brute force, math	1600	x8653
1658D1	388535 (Easy Version) bitmasks, math	1600	x8774
1775C	Interesting Sequence bitmasks, math	1600	x9696
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x10053
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x10696
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11855
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12270
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13535
114B	PFAST Inc. bitmasks, brute force, graphs	1500	x3538
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x4528
677C	Vanya and Label bitmasks, combinatorics, implementation, strings	1500	x6284
224B	Array bitmasks, implementation, two pointers	1500	x7163
437B	The Child and Set bitmasks, greedy, implementation, sortings	1500	x9171
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x9916
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9929
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x10134
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x10429
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x12081
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13239
1630A	And Matching bitmasks, constructive algorithms	1500	x14092
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x18144
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x18393
1600J	Robot Factory bitmasks, dfs and similar	1400	x3784
961C	Chessboard bitmasks, brute force, implementation	1400	x5229
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10817
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x11157
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12248
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12617
1270C	Make Good bitmasks, constructive algorithms, math	1400	x13610
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x13798
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x13957
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x14213
1634B	Fortune Telling bitmasks, math	1400	x15712
1095C	Powers Of Two bitmasks, greedy	1400	x15817
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15901
1362C	Johnny and Another Rating Drop bitmasks, greedy, math	1400	x17070
1463B	Find The Array bitmasks, constructive algorithms, greedy	1400	x18795
550B	Preparing Olympiad bitmasks, brute force	1400	x19539
27B	Tournament bitmasks, brute force, dfs and similar, greedy	1300	x5155
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x8816
611B	New Year and Old Property bitmasks, brute force, implementation	1300	x9795
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10639
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11397
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x12611
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12634
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13293
1926D	Vlad and Division bitmasks, greedy	1300	x13698
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x13726
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x14325
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x14488
1615B	And It's Non-Zero bitmasks, greedy, math	1300	x15251
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x16076
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x16145
1669H	Maximal AND bitmasks, greedy, math	1300	x16482
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x17021
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x29112
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x11445
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13375
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x14000
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x14240
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x15237
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17339
1362B	Johnny and His Hobbies bitmasks, brute force	1200	x18394
1514B	AND 0, Sum Big bitmasks, combinatorics, math	1200	x22889
1420B	Rock and Lever bitmasks, math	1200	x23761
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x26705
1202A	You Are Given Two Binary Strings... bitmasks, greedy	1100	x8992
1944B	Equal XOR bitmasks, constructive algorithms	1100	x14364