Problemset - Codeforces

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Codeforces Round 968 (Div. 2)
27:17:46
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bitmasks

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Problems

#	Name
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x19050
1511G	Chips on a Board bitmasks, brute force, data structures, dp, games, two pointers	2700	x759
1498F	Christmas Game bitmasks, data structures, dfs and similar, dp, games, math, trees	2500	x910
1497D	Genius bitmasks, dp, graphs, number theory	2500	x1516
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x7125
1463F	Max Correct Set bitmasks, dp, math	3100	x576
1450G	Communism bitmasks, dp, trees	3500	x306
1446C	Xor Tree binary search, bitmasks, data structures, divide and conquer, dp, trees	2100	x3563
1430G	Yet Another DAG Problem bitmasks, dfs and similar, dp, flows, graphs, math	2600	x684
1423J	Bubble Cup hypothesis bitmasks, constructive algorithms, dp, math	2400	x748
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4342
1400G	Mercenaries bitmasks, brute force, combinatorics, dp, dsu, math, two pointers	2600	x951
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x14015
1392G	Omkar and Pies bitmasks, dfs and similar, dp, math, shortest paths	2900	x479
1391D	505 bitmasks, brute force, constructive algorithms, dp, greedy, implementation	2000	x5228
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x19151
1383C	String Transformation 2 bitmasks, dp, graphs, trees	3100	x569
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x5021
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x12308
1342F	Make It Ascending bitmasks, brute force, dp	3000	x705
1340B	Nastya and Scoreboard bitmasks, dp, graphs, greedy	1700	x7824
1327G	Letters and Question Marks bitmasks, dp, string suffix structures	2800	x423
1327F	AND Segments bitmasks, combinatorics, data structures, dp, two pointers	2500	x1643
1326F2	Wise Men (Hard Version) bitmasks, dp, math	3200	x481
1326F1	Wise Men (Easy Version) bitmasks, brute force, dp, meet-in-the-middle	2600	x834
1322D	Reality Show bitmasks, dp	2800	x709
1316E	Team Building bitmasks, dp, greedy, sortings	2300	x3939
1313D	Happy New Year bitmasks, dp, implementation	2500	x1326
1305G	Kuroni and Antihype bitmasks, brute force, dp, dsu, graphs	3500	x972
1299D	Around the World bitmasks, combinatorics, dfs and similar, dp, graphs, graphs, math, trees	3000	x438
1292F	Nora's Toy Boxes bitmasks, combinatorics, dp	3500	x310
1288D	Minimax Problem binary search, bitmasks, dp	2000	x7095
1285D	Dr. Evil Underscores bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees	1900	x7664
1245F	Daniel and Spring Cleaning bitmasks, brute force, combinatorics, dp	2300	x1978
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x1632
1238E	Keyboard Purchase bitmasks, dp	2200	x2933
1234F	Yet Another Substring Reverse bitmasks, dp	2200	x2563
1225G	To Make 1 bitmasks, constructive algorithms, dp, greedy, number theory	3100	x537
1221G	Graph And Numbers bitmasks, brute force, combinatorics, dp, meet-in-the-middle	2900	x647
1215E	Marbles bitmasks, dp	2200	x2981
1209E2	Rotate Columns (hard version) bitmasks, dp, greedy, sortings	2500	x1938
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x2938
1208F	Bits And Pieces bitmasks, dfs and similar, dp, greedy	2600	x2408
1185G1	Playlist for Polycarp (easy version) bitmasks, combinatorics, dp	2100	x2836
1168C	And Reachability bitmasks, dp	2200	x2375
1152F2	Neko Rules the Catniverse (Large Version) bitmasks, dp, matrices	3000	x630
1152F1	Neko Rules the Catniverse (Small Version) bitmasks, dp, matrices	2800	x549
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x11051
1117F	Crisp String bitmasks, dp	2500	x571
1105E	Helping Hiasat bitmasks, brute force, dp, meet-in-the-middle	2200	x1620
1103D	Professional layer bitmasks, dp	3100	x404
1102F	Elongated Matrix binary search, bitmasks, brute force, dp, graphs	2000	x1980
1097H	Mateusz and an Infinite Sequence bitmasks, brute force, dp, strings	3400	x94
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x28162
1073E	Segment Sum bitmasks, combinatorics, dp, math	2300	x2537
1051D	Bicolorings bitmasks, dp	1700	x7338
1043F	Make It One bitmasks, combinatorics, dp, math, number theory, shortest paths	2500	x2325
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x15816
1038E	Maximum Matching bitmasks, brute force, dfs and similar, dp, graphs	2400	x966
1034E	Little C Loves 3 III bitmasks, dp, math	3200	x635
1030E	Vasya and Good Sequences bitmasks, dp	2000	x3064
1006F	Xor-Paths bitmasks, brute force, dp, meet-in-the-middle	2100	x5192
981E	Addition on Segments bitmasks, data structures, divide and conquer, dp	2200	x2078
981D	Bookshelves bitmasks, dp, greedy	1900	x3223
979D	Kuro and GCD and XOR and SUM binary search, bitmasks, brute force, data structures, dp, dsu, greedy, math, number theory, strings, trees	2200	x1772
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x2044
959E	Mahmoud and Ehab and the xor-MST bitmasks, dp, graphs, implementation, math	1900	x3374
938F	Erasing Substrings bitmasks, dp, greedy	2700	x487
914G	Sum the Fibonacci bitmasks, divide and conquer, dp, fft, math	2600	x918
913E	Logical Expression bitmasks, dp, shortest paths	2400	x765
913C	Party Lemonade bitmasks, dp, greedy	1600	x7851
908E	New Year and Entity Enumeration bitmasks, combinatorics, dp, math	2500	x756
906C	Party bitmasks, brute force, dp, graphs	2400	x1324
903F	Clear The Matrix bitmasks, dp	2200	x633
900D	Unusual Sequences bitmasks, combinatorics, dp, math, number theory	2000	x3160
895C	Square Subsets bitmasks, combinatorics, dp, math	2000	x5393
868D	Huge Strings bitmasks, brute force, dp, implementation, strings	2200	x901
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x4593
865E	Hex Dyslexia bitmasks, brute force, dp, graphs	3300	x120
855E	Salazar Slytherin's Locket bitmasks, dp	2200	x1737
850C	Arpa and a game with Mojtaba bitmasks, dp, games	2200	x1454
845F	Guards In The Storehouse bitmasks, dp	2500	x439
812B	Sagheer, the Hausmeister bitmasks, brute force, dp	1600	x5151
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x1034
776G	Sherlock and the Encrypted Data bitmasks, combinatorics, dp	2900	x337
772D	Varying Kibibits bitmasks, dp	2700	x584
768E	Game of Stones bitmasks, dp, games	2100	x2903
766E	Mahmoud and a xor trip bitmasks, constructive algorithms, data structures, dfs and similar, dp, math, trees	2100	x2959
757D	Felicity's Big Secret Revealed bitmasks, dp	2200	x1394
755F	PolandBall and Gifts bitmasks, dp, greedy	2600	x1325
750G	New Year and Binary Tree Paths bitmasks, brute force, combinatorics, dp	3200	x446
744C	Hongcow Buys a Deck of Cards bitmasks, brute force, dp	2400	x1077
743E	Vladik and cards binary search, bitmasks, brute force, dp	2200	x1493
698C	LRU bitmasks, dp, math, probabilities	2400	x1292
678E	Another Sith Tournament bitmasks, dp, math, probabilities	2200	x2150
662C	Binary Table bitmasks, brute force, divide and conquer, dp, fft, math	2600	x1996
599E	Sandy and Nuts bitmasks, dp, trees	2600	x628
582E	Boolean Function bitmasks, dp, expression parsing	3000	x482
580D	Kefa and Dishes bitmasks, dp	1800	x9507
547C	Mike and Foam bitmasks, combinatorics, dp, math, number theory	2300	x2788