Problemset - Codeforces

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Codeforces Round 946 (Div. 3)
22:54:32
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bitmasks

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Problems

#	Name
698C	LRU bitmasks, dp, math, probabilities	2400	x1280
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1324
1886E	I Wanna be the Team Leader bitmasks, constructive algorithms, dp, greedy, math, sortings, two pointers	2400	x1338
1804E	Routing bitmasks, brute force, dfs and similar, dp, graphs	2400	x1364
1848F	Vika and Wiki binary search, bitmasks, combinatorics, divide and conquer, dp, math	2400	x1452
1242C	Sum Balance bitmasks, dfs and similar, dp, graphs	2400	x1471
1826E	Walk the Runway bitmasks, brute force, data structures, dp, graphs, implementation, sortings	2400	x1507
1720D2	Xor-Subsequence (hard version) bitmasks, data structures, dp, strings, trees	2400	x1743
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x1852
959F	Mahmoud and Ehab and yet another xor task bitmasks, dp, math, matrices	2400	x1944
1523D	Love-Hate bitmasks, brute force, dp, probabilities	2400	x2085
449D	Jzzhu and Numbers bitmasks, combinatorics, dp	2400	x4096
429C	Guess the Tree bitmasks, constructive algorithms, dp, greedy, trees	2300	x901
1955H	The Most Reckless Defense bitmasks, brute force, constructive algorithms, dp, flows, graph matchings, shortest paths	2300	x1036
1967C	Fenwick Tree bitmasks, brute force, combinatorics, data structures, dp, math, trees	2300	x1289
327E	Axis Walking bitmasks, combinatorics, constructive algorithms, dp, meet-in-the-middle	2300	x1351
1780F	Three Chairs bitmasks, brute force, combinatorics, data structures, dp, number theory, sortings	2300	x1381
1929E	Sasha and the Happy Tree Cutting bitmasks, brute force, dfs and similar, dp, graphs, greedy, math, trees	2300	x1518
1245F	Daniel and Spring Cleaning bitmasks, brute force, combinatorics, dp	2300	x1722
1870E	Another MEX Problem bitmasks, brute force, dp, shortest paths	2300	x2216
1073E	Segment Sum bitmasks, combinatorics, dp, math	2300	x2404
547C	Mike and Foam bitmasks, combinatorics, dp, math, number theory	2300	x2708
1316E	Team Building bitmasks, dp, greedy, sortings	2300	x3495
903F	Clear The Matrix bitmasks, dp	2200	x624
71E	Nuclear Fusion bitmasks, dp	2200	x670
279D	The Minimum Number of Variables bitmasks, dp	2200	x692
385D	Bear and Floodlight bitmasks, dp, geometry	2200	x798
868D	Huge Strings bitmasks, brute force, dp, implementation, strings	2200	x890
377C	Captains Mode bitmasks, dp, games	2200	x1106
757D	Felicity's Big Secret Revealed bitmasks, dp	2200	x1274
850C	Arpa and a game with Mojtaba bitmasks, dp, games	2200	x1377
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x1425
743E	Vladik and cards binary search, bitmasks, brute force, dp	2200	x1474
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1507
1105E	Helping Hiasat bitmasks, brute force, dp, meet-in-the-middle	2200	x1593
855E	Salazar Slytherin's Locket bitmasks, dp	2200	x1628
979D	Kuro and GCD and XOR and SUM binary search, bitmasks, brute force, data structures, dp, dsu, greedy, math, number theory, strings, trees	2200	x1691
678E	Another Sith Tournament bitmasks, dp, math, probabilities	2200	x1906
981E	Addition on Segments bitmasks, data structures, divide and conquer, dp	2200	x2001
1168C	And Reachability bitmasks, dp	2200	x2333
1234F	Yet Another Substring Reverse bitmasks, dp	2200	x2371
1238E	Keyboard Purchase bitmasks, dp	2200	x2742
1215E	Marbles bitmasks, dp	2200	x2921
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3355
11D	A Simple Task bitmasks, dp, graphs	2200	x4477
165E	Compatible Numbers bitmasks, brute force, dfs and similar, dp	2200	x6215
342D	Xenia and Dominoes bitmasks, dfs and similar, dp	2100	x487
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1272
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2105
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2279
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2379
1185G1	Playlist for Polycarp (easy version) bitmasks, combinatorics, dp	2100	x2566
768E	Game of Stones bitmasks, dp, games	2100	x2648
525E	Anya and Cubes binary search, bitmasks, brute force, dp, math, meet-in-the-middle	2100	x2761
766E	Mahmoud and a xor trip bitmasks, constructive algorithms, data structures, dfs and similar, dp, math, trees	2100	x2846
1446C	Xor Tree binary search, bitmasks, data structures, divide and conquer, dp, trees	2100	x3398
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4209
1006F	Xor-Paths bitmasks, brute force, dp, meet-in-the-middle	2100	x4709
63E	Sweets Game bitmasks, dfs and similar, dp, games, implementation	2000	x715
413D	2048 bitmasks, dp	2000	x750
379D	New Year Letter bitmasks, brute force, dp	2000	x1483
1102F	Elongated Matrix binary search, bitmasks, brute force, dp, graphs	2000	x1915
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x2728
1030E	Vasya and Good Sequences bitmasks, dp	2000	x2973
900D	Unusual Sequences bitmasks, combinatorics, dp, math, number theory	2000	x3001
8C	Looking for Order bitmasks, dp	2000	x3250
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3263
1680E	Moving Chips bitmasks, dp, greedy	2000	x3639
1900D	Small GCD bitmasks, brute force, dp, math, number theory	2000	x3733
401D	Roman and Numbers bitmasks, brute force, combinatorics, dp, number theory	2000	x3972
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4189
453B	Little Pony and Harmony Chest bitmasks, brute force, dp	2000	x4529
1391D	505 bitmasks, brute force, constructive algorithms, dp, greedy, implementation	2000	x4941
895C	Square Subsets bitmasks, combinatorics, dp, math	2000	x5135
1288D	Minimax Problem binary search, bitmasks, dp	2000	x6699
232B	Table bitmasks, combinatorics, dp, math	1900	x1388
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1511
417D	Cunning Gena bitmasks, dp, greedy, sortings	1900	x2375
981D	Bookshelves bitmasks, dp, greedy	1900	x3176
1777D	Score of a Tree bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees	1900	x3231
959E	Mahmoud and Ehab and the xor-MST bitmasks, dp, graphs, implementation, math	1900	x3319
1950G	Shuffling Songs bitmasks, dfs and similar, dp, graphs, hashing, implementation, strings	1900	x3548
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x3685
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4068
16E	Fish bitmasks, dp, probabilities	1900	x4666
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x4775
1882D	Tree XOR bitmasks, dfs and similar, dp, greedy, trees	1900	x4995
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5189
1285D	Dr. Evil Underscores bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees	1900	x7352
1912K	Kim's Quest bitmasks, combinatorics, dp	1800	x2061
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5272
1862F	Magic Will Save the World binary search, bitmasks, brute force, dp	1800	x5719
1720D1	Xor-Subsequence (easy version) bitmasks, brute force, dp, strings, trees, two pointers	1800	x5739
1635D	Infinite Set bitmasks, dp, math, matrices, number theory, strings	1800	x6017
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6709
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x6906
580D	Kefa and Dishes bitmasks, dp	1800	x9210
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x325
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6631
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x7127