Problemset - Codeforces

Problems

#	Name
1566B	MIN-MEX Cut bitmasks, constructive algorithms, dp, greedy	800	x19123
1566C	MAX-MEX Cut bitmasks, constructive algorithms, dp, greedy	1000	x17044
1807G2	Subsequence Addition (Hard Version) bitmasks, dp, greedy, implementation, sortings	1100	x17774
1097B	Petr and a Combination Lock bitmasks, brute force, dp	1200	x26735
1553C	Penalty bitmasks, brute force, dp, greedy	1200	x17343
1042B	Vitamins bitmasks, brute force, dp, implementation	1200	x15249
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x29127
1661B	Getting Zero bitmasks, brute force, dfs and similar, dp, graphs, greedy, shortest paths	1300	x17029
1847C	Vampiric Powers, anyone? bitmasks, brute force, dp, greedy	1400	x12254
1385D	a-Good String bitmasks, brute force, divide and conquer, dp, implementation	1500	x18399
1516B	AGAGA XOOORRR bitmasks, brute force, dp, greedy	1500	x18150
1646C	Factorials and Powers of Two bitmasks, brute force, constructive algorithms, dp, math	1500	x13247
1872E	Data Structures Fan binary search, bitmasks, data structures, dp	1500	x12105
1926E	Vlad and an Odd Ordering binary search, bitmasks, data structures, dp, implementation, math, number theory	1500	x10159
1614C	Divan and bitwise operations bitmasks, combinatorics, constructive algorithms, dp, math	1500	x9932
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x4529
1395C	Boboniu and Bit Operations bitmasks, brute force, dp, greedy	1600	x13540
1632C	Strange Test binary search, bitmasks, brute force, dp, math	1600	x12274
1567C	Carrying Conundrum bitmasks, combinatorics, dp, math	1600	x11860
1151B	Dima and a Bad XOR bitmasks, brute force, constructive algorithms, dp	1600	x10701
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x10059
913C	Party Lemonade bitmasks, dp, greedy	1600	x7748
812B	Sagheer, the Hausmeister bitmasks, brute force, dp	1600	x5077
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13026
1360F	Spy-string bitmasks, brute force, constructive algorithms, dp, hashing, strings	1700	x11879
1516C	Baby Ehab Partitions Again bitmasks, constructive algorithms, dp, math	1700	x11547
1557C	Moamen and XOR bitmasks, combinatorics, dp, math, matrices	1700	x8343
1592C	Bakry and Partitioning bitmasks, constructive algorithms, dfs and similar, dp, graphs, trees	1700	x7631
1340B	Nastya and Scoreboard bitmasks, dp, graphs, greedy	1700	x7575
1051D	Bicolorings bitmasks, dp	1700	x7151
1829H	Don't Blame Me bitmasks, combinatorics, dp, math	1700	x7127
1879D	Sum of XOR Functions bitmasks, combinatorics, divide and conquer, dp, math	1700	x6631
1571E	Fix the String *special problem, bitmasks, dp, greedy	1700	x325
580D	Kefa and Dishes bitmasks, dp	1800	x9210
1491D	Zookeeper and The Infinite Zoo bitmasks, constructive algorithms, dp, greedy, math	1800	x6906
1552D	Array Differentiation bitmasks, brute force, constructive algorithms, dfs and similar, dp, graphs, math	1800	x6709
1635D	Infinite Set bitmasks, dp, math, matrices, number theory, strings	1800	x6017
1720D1	Xor-Subsequence (easy version) bitmasks, brute force, dp, strings, trees, two pointers	1800	x5739
1862F	Magic Will Save the World binary search, bitmasks, brute force, dp	1800	x5719
1582F1	Korney Korneevich and XOR (easy version) bitmasks, dp, greedy	1800	x5272
1912K	Kim's Quest bitmasks, combinatorics, dp	1800	x2061
1285D	Dr. Evil Underscores bitmasks, brute force, dfs and similar, divide and conquer, dp, greedy, strings, trees	1900	x7352
510D	Fox And Jumping bitmasks, brute force, dp, math	1900	x5189
1882D	Tree XOR bitmasks, dfs and similar, dp, greedy, trees	1900	x4995
1383B	GameGame bitmasks, constructive algorithms, dp, games, greedy, math	1900	x4775
16E	Fish bitmasks, dp, probabilities	1900	x4666
1846G	Rudolf and CodeVid-23 bitmasks, dp, graphs, greedy, shortest paths	1900	x4068
1957D	A BIT of an Inequality bitmasks, brute force, dp, math	1900	x3685
1950G	Shuffling Songs bitmasks, dfs and similar, dp, graphs, hashing, implementation, strings	1900	x3548
959E	Mahmoud and Ehab and the xor-MST bitmasks, dp, graphs, implementation, math	1900	x3319
1777D	Score of a Tree bitmasks, combinatorics, dfs and similar, dp, math, probabilities, trees	1900	x3231
981D	Bookshelves bitmasks, dp, greedy	1900	x3176
417D	Cunning Gena bitmasks, dp, greedy, sortings	1900	x2375
285D	Permutation Sum bitmasks, combinatorics, dp, implementation, meet-in-the-middle	1900	x1511
232B	Table bitmasks, combinatorics, dp, math	1900	x1388
1288D	Minimax Problem binary search, bitmasks, dp	2000	x6699
895C	Square Subsets bitmasks, combinatorics, dp, math	2000	x5135
1391D	505 bitmasks, brute force, constructive algorithms, dp, greedy, implementation	2000	x4941
453B	Little Pony and Harmony Chest bitmasks, brute force, dp	2000	x4529
1416C	XOR Inverse bitmasks, data structures, divide and conquer, dp, greedy, math, sortings, strings, trees	2000	x4189
401D	Roman and Numbers bitmasks, brute force, combinatorics, dp, number theory	2000	x3972
1900D	Small GCD bitmasks, brute force, dp, math, number theory	2000	x3733
1680E	Moving Chips bitmasks, dp, greedy	2000	x3639
1956D	Nene and the Mex Operator bitmasks, brute force, constructive algorithms, divide and conquer, dp, greedy, implementation, math	2000	x3263
8C	Looking for Order bitmasks, dp	2000	x3250
900D	Unusual Sequences bitmasks, combinatorics, dp, math, number theory	2000	x3001
1030E	Vasya and Good Sequences bitmasks, dp	2000	x2973
1209E1	Rotate Columns (easy version) bitmasks, brute force, dp, greedy, sortings	2000	x2728
1102F	Elongated Matrix binary search, bitmasks, brute force, dp, graphs	2000	x1915
379D	New Year Letter bitmasks, brute force, dp	2000	x1483
413D	2048 bitmasks, dp	2000	x750
63E	Sweets Game bitmasks, dfs and similar, dp, games, implementation	2000	x715
1006F	Xor-Paths bitmasks, brute force, dp, meet-in-the-middle	2100	x4709
1560F2	Nearest Beautiful Number (hard version) bitmasks, brute force, constructive algorithms, dfs and similar, dp, greedy	2100	x4209
1446C	Xor Tree binary search, bitmasks, data structures, divide and conquer, dp, trees	2100	x3398
766E	Mahmoud and a xor trip bitmasks, constructive algorithms, data structures, dfs and similar, dp, math, trees	2100	x2846
525E	Anya and Cubes binary search, bitmasks, brute force, dp, math, meet-in-the-middle	2100	x2761
768E	Game of Stones bitmasks, dp, games	2100	x2648
1185G1	Playlist for Polycarp (easy version) bitmasks, combinatorics, dp	2100	x2566
1930D2	Sum over all Substrings (Hard Version) bitmasks, divide and conquer, dp, dsu, greedy, implementation, strings	2100	x2379
1868B2	Candy Party (Hard Version) bitmasks, constructive algorithms, dp, greedy, implementation, math	2100	x2279
431D	Random Task binary search, bitmasks, combinatorics, dp, math	2100	x2105
111C	Petya and Spiders bitmasks, dp, dsu	2100	x1272
342D	Xenia and Dominoes bitmasks, dfs and similar, dp	2100	x487
165E	Compatible Numbers bitmasks, brute force, dfs and similar, dp	2200	x6215
11D	A Simple Task bitmasks, dp, graphs	2200	x4477
1854B	Earn or Unlock bitmasks, brute force, dp	2200	x3355
1215E	Marbles bitmasks, dp	2200	x2921
1238E	Keyboard Purchase bitmasks, dp	2200	x2742
1234F	Yet Another Substring Reverse bitmasks, dp	2200	x2371
1168C	And Reachability bitmasks, dp	2200	x2333
981E	Addition on Segments bitmasks, data structures, divide and conquer, dp	2200	x2001
678E	Another Sith Tournament bitmasks, dp, math, probabilities	2200	x1906
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
855E	Salazar Slytherin's Locket bitmasks, dp	2200	x1628
1105E	Helping Hiasat bitmasks, brute force, dp, meet-in-the-middle	2200	x1593
1926F	Vlad and Avoiding X bitmasks, brute force, dfs and similar, dp, implementation	2200	x1506
743E	Vladik and cards binary search, bitmasks, brute force, dp	2200	x1474
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x1425
850C	Arpa and a game with Mojtaba bitmasks, dp, games	2200	x1377

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Before contest
Codeforces Round 946 (Div. 3)
23:21:45
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