Problemset - Codeforces

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Codeforces Round 950 (Div. 3)
42:00:58
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Problems

#	Name
1736E	Swap and Take dp, greedy	2600	x653
1736C2	Good Subarrays (Hard Version) binary search, data structures, dp, two pointers	2400	x1246
1734F	Zeros and Ones bitmasks, divide and conquer, dp, math	2500	x775
1733E	Conveyor constructive algorithms, dp, math	2700	x1100
1732E	Location data structures, dp, math, number theory	2800	x415
1731F	Function Sum brute force, combinatorics, dp, fft, math	2500	x663
1730F	Almost Sorted bitmasks, data structures, dp	2700	x413
1728G	Illumination binary search, bitmasks, brute force, combinatorics, dp, math, two pointers	2700	x429
1725J	Journey dp, trees	2500	x362
1725E	Electrical Efficiency combinatorics, data structures, dp, math, number theory, trees	2500	x437
1721E	Prefix Function Queries dfs and similar, dp, hashing, string suffix structures, strings, trees	2200	x1829
1720D2	Xor-Subsequence (hard version) bitmasks, data structures, dp, strings, trees	2400	x1759
1716F	Bags with Balls combinatorics, dp, math, number theory	2500	x1006
1716E	Swap and Maximum Block bitmasks, data structures, dfs and similar, divide and conquer, dp	2500	x1027
1715E	Long Way Home data structures, divide and conquer, dp, geometry, graphs, greedy, shortest paths	2400	x1621
1713F	Lost Array bitmasks, combinatorics, constructive algorithms, dp, math	2900	x514
1710C	XOR Triangle bitmasks, brute force, constructive algorithms, dp, greedy, math	2500	x1284
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x537
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x146
1707D	Partial Virtual Trees combinatorics, dfs and similar, dp, math, trees	3000	x588
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1660
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x172
1704F	Colouring Game constructive algorithms, dp, games	2600	x940
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2240
1701E	Text Editor brute force, dp, greedy, strings	2500	x1076
1700F	Puzzle constructive algorithms, dp, greedy	2600	x855
1699E	Three Days Grace data structures, dp, greedy, math, number theory, two pointers	2600	x1097
1699D	Almost Triple Deletions data structures, dp, greedy	2300	x3044
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1145
1696H	Maximum Product? brute force, combinatorics, dp, greedy, implementation, math, two pointers	3500	x155
1695D2	Tree Queries (Hard Version) constructive algorithms, dfs and similar, dp, greedy, trees	2300	x1930
1695D1	Tree Queries (Easy Version) brute force, constructive algorithms, dfs and similar, dp, greedy, trees	2200	x2100
1693D	Decinc Dividing brute force, data structures, divide and conquer, dp, greedy	2800	x782
1691F	K-Set Tree combinatorics, dfs and similar, dp, math, trees	2500	x912
1681F	Unique Occurrences data structures, dfs and similar, divide and conquer, dp, dsu, trees	2300	x1567
1681E	Labyrinth Adventures data structures, dp, matrices, shortest paths	2600	x704
1679F	Formalism for Formalism bitmasks, dp, math	2600	x502
1679E	Typical Party in Dorm bitmasks, combinatorics, dp, strings	2400	x1105
1677F	Tokitsukaze and Gems dp, math	3500	x87
1677D	Tokitsukaze and Permutations dp, math	2500	x1196
1675G	Sorting Pancakes dp	2300	x1611
1671F	Permutation Counting brute force, combinatorics, dp, fft, math	2700	x318
1670F	Jee, You See? bitmasks, combinatorics, dp	2400	x923
1667E	Centroid Probabilities combinatorics, dp, fft, math	3000	x629
1667D	Edge Elimination constructive algorithms, dfs and similar, dp, trees	2900	x645
1666F	Fancy Stack combinatorics, dp, implementation	2200	x1114
1661E	Narrow Components brute force, data structures, dp, dsu, math, trees	2500	x915
1658E	Gojou and Matrix Game data structures, dp, games, hashing, implementation, math, number theory, sortings	2500	x1024
1657E	Star MST combinatorics, dp, graph matchings, math	2200	x1998
1654H	Three Minimums combinatorics, constructive algorithms, divide and conquer, dp, fft, math	3500	x71
1650F	Vitaly and Advanced Useless Algorithms dp, greedy, implementation	2200	x1391
1648D	Serious Business data structures, divide and conquer, dp, implementation, shortest paths	2800	x808
1647F	Madoka and Laziness dp, greedy	3100	x378
1646E	Power Board brute force, dp, math, number theory	2200	x2309
1637F	Towers constructive algorithms, dfs and similar, dp, greedy, trees	2500	x1708
1630D	Flipping Range constructive algorithms, dp, greedy, number theory	2400	x1516
1630C	Paint the Middle dp, greedy, sortings, two pointers	2200	x2856
1628D2	Game on Sum (Hard Version) combinatorics, dp, games, math	2400	x1990
1627E	Not Escaping data structures, dp, implementation, shortest paths, two pointers	2200	x2255
1626F	A Random Code Problem combinatorics, dp, math, number theory, probabilities	2800	x714
1625E1	Cats on the Upgrade (easy version) brute force, data structures, dfs and similar, divide and conquer, dp, graphs, trees	2500	x981
1621G	Weighted Increasing Subsequences data structures, dp, math	3200	x626
1621E	New School binary search, data structures, dp, greedy, implementation, sortings	2300	x1726
1620G	Subsequences Galore bitmasks, combinatorics, dp	2400	x863
1620F	Bipartite Array dp, greedy	2800	x590
1617E	Christmas Chocolates dfs and similar, dp, games, graphs, implementation, math, number theory, shortest paths, trees	2700	x839
1616H	Keep XOR Low bitmasks, combinatorics, data structures, divide and conquer, dp, math	3000	x803
1616G	Just Add an Edge dfs and similar, dp, graphs	3500	x266
1615F	LEGOndary Grandmaster combinatorics, dp, math	2800	x767
1614D2	Divan and Kostomuksha (hard version) dp, number theory	2300	x2196
1612F	Armor and Weapons brute force, dp, greedy, shortest paths	2800	x574
1609E	William The Oblivious bitmasks, data structures, dp, matrices	2400	x1885
1608F	MEX counting combinatorics, dp, implementation	3200	x522
1606F	Tree Queries brute force, dp, trees	2800	x521
1605F	PalindORme combinatorics, dp	2900	x292
1603F	October 18, 2017 combinatorics, dp, implementation, math	2700	x269
1603E	A Perfect Problem combinatorics, dp, math	3200	x404
1603D	Artistic Partition divide and conquer, dp, number theory	3000	x617
1603C	Extreme Extension dp, greedy, math, number theory	2300	x1985
1601E	Phys Ed Online data structures, dp, greedy	2900	x467
1601D	Difficult Mountain data structures, dp, greedy, sortings	2700	x1394
1601C	Optimal Insertion data structures, divide and conquer, dp, greedy, sortings	2300	x1929
1598F	RBS binary search, bitmasks, brute force, data structures, dp	2400	x1331
1594E2	Rubik's Cube Coloring (hard version) brute force, dp, implementation, math, trees	2300	x1449
1593G	Changing Brackets constructive algorithms, data structures, dp, greedy	2200	x1627
1585G	Poachers dp, games, graphs, trees	2500	x172
1585F	Non-equal Neighbours combinatorics, dp, math	2400	x1154
1584F	Strange LCS bitmasks, dp, graphs, greedy, strings	2600	x856
1582F2	Korney Korneevich and XOR (hard version) binary search, brute force, dp, greedy, two pointers	2400	x1719
1580D	Subsequence brute force, divide and conquer, dp, greedy, trees	2900	x767
1580B	Mathematics Curriculum brute force, combinatorics, dp, trees	2600	x982
1579G	Minimal Coverage dp	2200	x2283
1575H	Holiday Wall Ornaments dp, strings	2200	x589
1574F	Occurrences combinatorics, dfs and similar, dp, dsu, fft, graphs	2700	x590
1572E	Polygon binary search, dp, geometry	3000	x280
1572C	Paint dp, greedy	2700	x1399
1571G	A Battle Against a Dragon *special problem, data structures, dp	2500	x72
1569F	Palindromic Hamiltonian Path brute force, dfs and similar, dp, graphs, hashing	3000	x230
1566H	Xor-quiz constructive algorithms, dp, interactive, math, number theory	3200	x125
1566F	Points Movement data structures, dp, greedy, implementation, sortings	2600	x931