Problemset - Codeforces

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Codeforces Round 988 (Div. 3)
46:57:50
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Problems

#	Name
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x9160
1714C	Minimum Varied Number greedy	800	x31172
1714B	Remove Prefix data structures, greedy, implementation	800	x30582
1714A	Everyone Loves to Sleep implementation, math	900	x29884
1713F	Lost Array bitmasks, combinatorics, constructive algorithms, dp, math	2900	x545
1713E	Cross Swapping 2-sat, data structures, dsu, greedy, matrices	2400	x1707
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5719
1713C	Build Permutation constructive algorithms, dp, math	1200	x17466
1713B	Optimal Reduction constructive algorithms, sortings	1000	x21397
1713A	Traveling Salesman Problem geometry, greedy, implementation	800	x22036
1712F	Triameter binary search, data structures, dfs and similar, trees	3200	x330
1712E2	LCM Sum (hard version) brute force, data structures, math, number theory, two pointers	2500	x1360
1712E1	LCM Sum (easy version) binary search, brute force, combinatorics, math, number theory, two pointers	2300	x2192
1712D	Empty Graph binary search, constructive algorithms, data structures, greedy, shortest paths	2000	x4568
1712C	Sort Zero greedy, sortings	1100	x19933
1712B	Woeful Permutation constructive algorithms, greedy, number theory	800	x21654
1712A	Wonderful Permutation greedy, implementation	800	x24153
1711B	Party brute force, graphs	1300	x13451
1711A	Perfect Permutation constructive algorithms	800	x25247
1710E	Two Arrays binary search, games, graph matchings	2400	x507
1710D	Recover the Tree constructive algorithms, trees	3400	x422
1710C	XOR Triangle bitmasks, brute force, constructive algorithms, dp, greedy, math	2500	x1391
1710B	Rain binary search, brute force, data structures, geometry, greedy, implementation, math	2100	x2494
1710A	Color the Picture constructive algorithms, greedy, math	1500	x10963
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x556
1709E	XOR Tree bitmasks, data structures, dfs and similar, dsu, greedy, trees	2400	x2770
1709D	Rorororobot binary search, data structures, greedy, math	1700	x8482
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8915
1709B	Also Try Minecraft data structures, dp, implementation	900	x22918
1709A	Three Doors brute force, greedy, implementation, math	800	x29733
1708B	Difference of GCDs constructive algorithms, math	1100	x20983
1708A	Difference Operations greedy, math	800	x21828
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x154
1707E	Replace binary search, data structures	3500	x721
1707D	Partial Virtual Trees combinatorics, dfs and similar, dp, math, trees	3000	x654
1707C	DFS Trees dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x1533
1707B	Difference Array brute force, data structures, implementation, sortings	1900	x5792
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x13722
1706E	Qpwoeirut and Vertices binary search, data structures, dfs and similar, divide and conquer, dsu, greedy, trees	2300	x2769
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1722
1706D1	Chopping Carrots (Easy Version) binary search, brute force, constructive algorithms, greedy, number theory	1700	x7031
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x14989
1706B	Making Towers dp, greedy, math	1100	x16615
1706A	Another String Minimization Problem 2-sat, constructive algorithms, greedy, string suffix structures, strings	800	x23014
1705F	Mark and the Online Exam bitmasks, constructive algorithms, interactive, probabilities	2900	x616
1705E	Mark and Professor Koro binary search, bitmasks, brute force, combinatorics, data structures, greedy	2300	x2106
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6378
1705C	Mark and His Unfinished Essay brute force, implementation	1400	x13411
1705B	Mark the Dust Sweeper constructive algorithms, greedy, implementation	900	x23108
1705A	Mark the Photographer greedy, sortings	800	x25333
1704H2	Game of AI (hard version) combinatorics, fft, math	3500	x93
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x186
1704G	Mio and Lucky Array constructive algorithms, fft, math, strings	3500	x114
1704F	Colouring Game constructive algorithms, dp, games	2600	x1062
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2373
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x5057
1704C	Virus greedy, implementation, sortings	1200	x16131
1704B	Luke is a Foodie brute force, greedy, implementation	1000	x18472
1704A	Two 0-1 Sequences constructive algorithms, greedy	800	x16046
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x10820
1703F	Yet Another Problem About Pairs Satisfying an Inequality binary search, data structures, dp, greedy, sortings	1300	x20441
1703E	Mirror Grid implementation	1200	x18716
1703D	Double Strings brute force, data structures, strings	1100	x25902
1703C	Cypher brute force, implementation, strings	800	x35952
1703B	ICPC Balloons data structures, implementation	800	x50169
1703A	YES or YES? brute force, implementation, strings	800	x71281
1702G2	Passable Paths (hard version) data structures, dfs and similar, trees	2000	x4719
1702G1	Passable Paths (easy version) dfs and similar, trees	1900	x5496
1702F	Equate Multisets constructive algorithms, data structures, greedy, math, number theory	1700	x8461
1702E	Split Into Two Sets dfs and similar, dsu, graphs	1600	x13519
1702D	Not a Cheap String greedy	1000	x23837
1702C	Train and Queries data structures, greedy	1100	x22609
1702B	Polycarp Writes a String from Memory greedy	800	x27770
1702A	Round Down the Price constructive algorithms	800	x35061
1701F	Points combinatorics, data structures, implementation, math, matrices	2500	x951
1701E	Text Editor brute force, dp, greedy, strings	2500	x1140
1701D	Permutation Restoration binary search, data structures, greedy, math, sortings, two pointers	1900	x5725
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x17326
1701B	Permutation greedy	800	x20238
1701A	Grass Field implementation	800	x26421
1700F	Puzzle constructive algorithms, dp, greedy	2600	x941
1700E	Serega the Pirate brute force, constructive algorithms	2600	x875
1700D	River Locks binary search, dp, greedy, math	1900	x6157
1700C	Helping the Nature constructive algorithms, data structures, greedy	1700	x10990
1700B	Palindromic Numbers constructive algorithms, implementation, math	1100	x18838
1700A	Optimal Path constructive algorithms, greedy, math	800	x22944
1699E	Three Days Grace data structures, dp, greedy, math, number theory, two pointers	2600	x1186
1699D	Almost Triple Deletions data structures, dp, greedy	2300	x3165
1699C	The Third Problem combinatorics, constructive algorithms, math	1700	x9829
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x19885
1699A	The Third Three Number Problem constructive algorithms, math	800	x24073
1698G	Long Binary String bitmasks, math, matrices, meet-in-the-middle, number theory	2900	x318
1698F	Equal Reversal constructive algorithms, graphs, implementation, math	2800	x643
1698E	PermutationForces II brute force, combinatorics, greedy, sortings, trees, two pointers	2300	x1657
1698D	Fixed Point Guessing binary search, constructive algorithms, interactive	1600	x9433
1698C	3SUM Closure brute force, data structures	1300	x18604
1698B	Rising Sand constructive algorithms, greedy, implementation	800	x20978
1698A	XOR Mixup bitmasks, brute force	800	x29371
1697F	Too Many Constraints 2-sat, constructive algorithms, graphs, implementation	2800	x568
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1238