Problemset - Codeforces

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Codeforces Round 944 (Div. 4)
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bitmasks

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Problems

#	Name
1721D	Maximum AND bitmasks, dfs and similar, divide and conquer, greedy, sortings	1800	x6298
1205B	Shortest Cycle bitmasks, brute force, graphs, shortest paths	1900	x6323
1329B	Dreamoon Likes Sequences bitmasks, combinatorics, math	1700	x6377
1868B1	Candy Party (Easy Version) bitmasks, constructive algorithms, graphs, greedy, implementation, math	1700	x6443
1556D	Take a Guess bitmasks, constructive algorithms, interactive, math	1800	x6487
1936A	Bitwise Operation Wizard bitmasks, constructive algorithms, greedy, interactive, math	1700	x6552
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6583
888E	Maximum Subsequence bitmasks, divide and conquer, meet-in-the-middle	1800	x6635
570D	Tree Requests binary search, bitmasks, constructive algorithms, dfs and similar, graphs, trees	2200	x6674
1288D	Minimax Problem binary search, bitmasks, dp	2000	x6684
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6688
1303D	Fill The Bag bitmasks, greedy	1900	x6822
1760G	SlavicG's Favorite Problem bitmasks, dfs and similar, graphs	1700	x6884
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x6892
1466E	Apollo versus Pan bitmasks, brute force, math	1800	x6983
1922E	Increasing Subsequences bitmasks, constructive algorithms, divide and conquer, greedy, math	1800	x7040
1883E	Look Back bitmasks, greedy	1700	x7053
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x7071
1217C	The Number Of Good Substrings binary search, bitmasks, brute force	1700	x7090
1051D	Bicolorings bitmasks, dp	1700	x7136
224B	Array bitmasks, implementation, two pointers	1500	x7159
1285D	Dr. Evil Underscores bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees	1900	x7338
1543D1	RPD and Rap Sheet (Easy Version) bitmasks, constructive algorithms, interactive, math	1700	x7437
1950F	0, 1, 2, Tree! bitmasks, brute force, greedy, implementation, trees	1700	x7534
1340B	Nastya and Scoreboard bitmasks, dp, graphs, greedy	1700	x7572
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x7612
1778C	Flexible String bitmasks, brute force, strings	1600	x7668
913C	Party Lemonade bitmasks, dp, greedy	1600	x7743
1332D	Walk on Matrix bitmasks, constructive algorithms, math	1700	x7867
1338B	Edge Weight Assignment bitmasks, constructive algorithms, dfs and similar, greedy, math, trees	1800	x8084
1801A	The Very Beautiful Blanket bitmasks, constructive algorithms	1600	x8112
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8331
242E	XOR on Segment bitmasks, data structures	2000	x8430
1554C	Mikasa binary search, bitmasks, greedy, implementation	1800	x8533
1225C	p-binary bitmasks, brute force, math	1600	x8645
1658D1	388535 (Easy Version) bitmasks, math	1600	x8764
1152B	Neko Performs Cat Furrier Transform bitmasks, constructive algorithms, dfs and similar, math	1300	x8811
1731C	Even Subarrays bitmasks, brute force, hashing, math, number theory	1700	x8942
1202A	You Are Given Two Binary Strings... bitmasks, greedy	1100	x8968
437B	The Child and Set bitmasks, greedy, implementation, sortings	1500	x9158
580D	Kefa and Dishes bitmasks, dp	1800	x9176
706D	Vasiliy's Multiset binary search, bitmasks, data structures, trees	1800	x9282
1775C	Interesting Sequence bitmasks, math	1600	x9652
611B	New Year and Old Property bitmasks, brute force, implementation	1300	x9785
1742G	Orray bitmasks, brute force, greedy, math, sortings	1500	x9868
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9911
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x10016
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x10016
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x10377
1659B	Bit Flipping bitmasks, constructive algorithms, greedy, strings	1300	x10619
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x10687
484A	Bits bitmasks, constructive algorithms	1700	x10697
1875C	Jellyfish and Green Apple bitmasks, greedy, math, number theory	1400	x10774
1878E	Iva & Pav binary search, bitmasks, data structures, greedy	1400	x11071
1368D	AND, OR and square sum bitmasks, greedy, math	1700	x11216
1903B	StORage room bitmasks, brute force, constructive algorithms, greedy	1200	x11338
912B	New Year's Eve bitmasks, constructive algorithms, number theory	1300	x11375
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11524
1325D	Ehab the Xorcist bitmasks, constructive algorithms, greedy, number theory	1700	x11586
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11839
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x11861
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x12005
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12214
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12245
1554B	Cobb bitmasks, brute force, greedy, math	1700	x12417
1918C	XOR-distance bitmasks, greedy, implementation, math	1400	x12537
1775B	Gardener and the Array bitmasks, constructive algorithms	1300	x12552
1864C	Divisor Chain bitmasks, constructive algorithms, math, number theory	1300	x12586
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x12981
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13176
1601A	Array Elimination bitmasks, greedy, math, number theory	1300	x13241
1870B	Friendly Arrays bitmasks, greedy, math	1200	x13342
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13507
1926D	Vlad and Division bitmasks, greedy	1300	x13557
1270C	Make Good bitmasks, constructive algorithms, math	1400	x13591
1913C	Game with Multiset binary search, bitmasks, brute force, greedy	1300	x13640
1513B	AND Sequences bitmasks, combinatorics, constructive algorithms, math	1400	x13745
1909B	Make Almost Equal With Mod bitmasks, constructive algorithms, math, number theory	1200	x13873
1494B	Berland Crossword bitmasks, brute force, greedy, implementation	1400	x13947
1630A	And Matching bitmasks, constructive algorithms	1500	x14072
1790E	Vlad and a Pair of Numbers bitmasks, constructive algorithms	1400	x14175
743B	Chloe and the sequence binary search, bitmasks, constructive algorithms, implementation	1200	x14214
1944B	Equal XOR bitmasks, constructive algorithms	1100	x14218
1882B	Sets and Union bitmasks, brute force, constructive algorithms, greedy	1300	x14266
96B	Lucky Numbers (easy) binary search, bitmasks, brute force	1300	x14450
1957B	A BIT of a Construction bitmasks, constructive algorithms, greedy, implementation	1100	x14623
1726B	Mainak and Interesting Sequence bitmasks, constructive algorithms, math	1100	x14648
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x15197
1615B	And It's Non-Zero bitmasks, greedy, math	1300	x15220
1763A	Absolute Maximization bitmasks, constructive algorithms, greedy, math	800	x15267
1842B	Tenzing and Books bitmasks, greedy, math	1100	x15655
1634B	Fortune Telling bitmasks, math	1400	x15664
1095C	Powers Of Two bitmasks, greedy	1400	x15775
1867B	XOR Palindromes bitmasks, constructive algorithms, strings	1100	x15834
1312C	Adding Powers bitmasks, greedy, implementation, math, number theory, ternary search	1400	x15857
202A	LLPS binary search, bitmasks, brute force, greedy, implementation, strings	800	x15877
1547D	Co-growing Sequence bitmasks, constructive algorithms, greedy	1300	x16043
1498B	Box Fitting binary search, bitmasks, data structures, greedy	1300	x16096
1669H	Maximal AND bitmasks, greedy, math	1300	x16392
1625A	Ancient Civilization bitmasks, greedy, math	800	x16949