Problemset - Codeforces

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Codeforces Round (Div. 3)
30:10:20
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Problems

#	Name
1709D	Rorororobot binary search, data structures, greedy, math	1700	x8059
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8485
1709A	Three Doors brute force, greedy, implementation, math	800	x28963
1708A	Difference Operations greedy, math	800	x21466
1707C	DFS Trees dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x1383
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x12810
1706E	Qpwoeirut and Vertices binary search, data structures, dfs and similar, divide and conquer, dsu, greedy, trees	2300	x2355
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1651
1706D1	Chopping Carrots (Easy Version) binary search, brute force, constructive algorithms, greedy, number theory	1700	x6652
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x14421
1706B	Making Towers dp, greedy, math	1100	x16199
1706A	Another String Minimization Problem 2-sat, constructive algorithms, greedy, string suffix structures, strings	800	x22542
1705E	Mark and Professor Koro binary search, bitmasks, brute force, combinatorics, data structures, greedy	2300	x1977
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6089
1705B	Mark the Dust Sweeper constructive algorithms, greedy, implementation	900	x22158
1705A	Mark the Photographer greedy, sortings	800	x24794
1704C	Virus greedy, implementation, sortings	1200	x14359
1704B	Luke is a Foodie brute force, greedy, implementation	1000	x16294
1704A	Two 0-1 Sequences constructive algorithms, greedy	800	x15778
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x9964
1703F	Yet Another Problem About Pairs Satisfying an Inequality binary search, data structures, dp, greedy, sortings	1300	x18087
1702F	Equate Multisets constructive algorithms, data structures, greedy, math, number theory	1700	x7922
1702D	Not a Cheap String greedy	1000	x22925
1702C	Train and Queries data structures, greedy	1100	x21454
1702B	Polycarp Writes a String from Memory greedy	800	x26882
1701E	Text Editor brute force, dp, greedy, strings	2500	x1054
1701D	Permutation Restoration binary search, data structures, greedy, math, sortings, two pointers	1900	x5472
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x15686
1701B	Permutation greedy	800	x19947
1700F	Puzzle constructive algorithms, dp, greedy	2600	x829
1700D	River Locks binary search, dp, greedy, math	1900	x5824
1700C	Helping the Nature constructive algorithms, data structures, greedy	1700	x10447
1700A	Optimal Path constructive algorithms, greedy, math	800	x22531
1699E	Three Days Grace data structures, dp, greedy, math, number theory, two pointers	2600	x1076
1699D	Almost Triple Deletions data structures, dp, greedy	2300	x3021
1698E	PermutationForces II brute force, combinatorics, greedy, sortings, trees, two pointers	2300	x1570
1698B	Rising Sand constructive algorithms, greedy, implementation	800	x20639
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1135
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x13922
1697B	Promo greedy, sortings	900	x25430
1697A	Parkway Walk greedy, implementation	800	x25383
1696H	Maximum Product? brute force, combinatorics, dp, greedy, implementation, math, two pointers	3500	x153
1696D	Permutation Graph binary search, constructive algorithms, data structures, divide and conquer, greedy, shortest paths	1900	x5165
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x11297
1696B	NIT Destroys the Universe greedy	900	x19250
1696A	NIT orz! bitmasks, greedy	800	x18092
1695D2	Tree Queries (Hard Version) constructive algorithms, dfs and similar, dp, greedy, trees	2300	x1912
1695D1	Tree Queries (Easy Version) brute force, constructive algorithms, dfs and similar, dp, greedy, trees	2200	x2083
1695C	Zero Path brute force, data structures, dp, graphs, greedy, shortest paths	1700	x10352
1695B	Circle Game games, greedy	1000	x17992
1694B	Paranoid String constructive algorithms, greedy	1200	x18479
1694A	Creep greedy, implementation	800	x22103
1693F	I Might Be Wrong binary search, greedy, two pointers	3400	x274
1693E	Outermost Maximums data structures, greedy	3400	x369
1693D	Decinc Dividing brute force, data structures, divide and conquer, dp, greedy	2800	x772
1693C	Keshi in Search of AmShZ graphs, greedy, shortest paths	2300	x2436
1693B	Fake Plastic Trees dfs and similar, dp, greedy, trees	1700	x8046
1693A	Directional Increase greedy	1300	x15619
1692H	Gambling data structures, dp, greedy, math	1700	x7029
1692B	All Distinct greedy, sortings	800	x32673
1691E	Number of Groups data structures, dfs and similar, dsu, graphs, greedy, sortings	2300	x1743
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15069
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x21192
1691A	Beat The Odds brute force, greedy, math	800	x29814
1690G	Count the Trains binary search, data structures, greedy, sortings	2000	x3224
1690E	Price Maximization binary search, greedy, math, two pointers	1500	x14459
1690C	Restoring the Duration of Tasks data structures, greedy, implementation	800	x25369
1690B	Array Decrements greedy, implementation	800	x24601
1690A	Print a Pedestal (Codeforces logo?) constructive algorithms, greedy	800	x32477
1689B	Mystic Permutation data structures, greedy	900	x17091
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16370
1688C	Manipulating History constructive algorithms, greedy, strings	1700	x7883
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x17839
1687E	Become Big For Me combinatorics, constructive algorithms, greedy, math, number theory	3500	x213
1687C	Sanae and Giant Robot binary search, brute force, data structures, dsu, greedy, sortings	2500	x1335
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3477
1687A	The Enchanted Forest brute force, greedy	1600	x9946
1686B	Odd Subarrays dp, greedy	800	x17889
1686A	Everything Everywhere All But One greedy	800	x20162
1685E	The Ultimate LIS Problem data structures, greedy	3500	x141
1685D2	Permutation Weight (Hard Version) constructive algorithms, greedy	3500	x103
1685C	Bring Balance brute force, constructive algorithms, greedy	2600	x911
1685B	Linguistics greedy, implementation, sortings, strings	2000	x3152
1685A	Circular Local MiniMax constructive algorithms, greedy, sortings	1100	x16456
1684E	MEX vs DIFF binary search, brute force, constructive algorithms, data structures, greedy, two pointers	2100	x3031
1684D	Traps constructive algorithms, greedy, sortings	1700	x9286
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x12005
1682F	MCMF? data structures, flows, graphs, greedy, sortings, two pointers	2700	x285
1682E	Unordered Swaps constructive algorithms, dfs and similar, graphs, greedy, math, sortings, trees	2700	x559
1682C	LIS or Reverse LIS? constructive algorithms, greedy, implementation, math	1400	x14098
1682A	Palindromic Indices greedy, strings	800	x19006
1681A	Game with Cards games, greedy	800	x20706
1680E	Moving Chips bitmasks, dp, greedy	2000	x3628
1680D	Dog Walking brute force, greedy, math	2400	x1113
1680C	Binary String binary search, greedy, strings, two pointers	1600	x9482
1679A	AvtoBus brute force, greedy, math, number theory	900	x21767
1678B2	Tokitsukaze and Good 01-String (hard version) dp, greedy, implementation	1800	x6384
1677C	Tokitsukaze and Two Colorful Tapes constructive algorithms, dfs and similar, graphs, greedy	1900	x3393
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x15758
1676E	Eating Queries binary search, greedy, sortings	1100	x24563