Problemset - Codeforces

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Codeforces Round 953 (Div. 2)
5 days
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Problems

#	Name
1716C	Robot in a Hallway data structures, dp, greedy, implementation, ternary search	2000	x4043
1716B	Permutation Chain constructive algorithms, math	800	x21244
1716A	2-3 Moves greedy, math	800	x31764
1715F	Crop Squares constructive algorithms, geometry, interactive, math	2700	x504
1715E	Long Way Home data structures, divide and conquer, dp, geometry, graphs, greedy, shortest paths	2400	x1630
1715D	2+ doors 2-sat, bitmasks, graphs, greedy	1900	x4975
1715C	Monoblock combinatorics, data structures, implementation, math	1700	x8418
1715B	Beautiful Array constructive algorithms, greedy, math	1000	x20461
1715A	Crossmarket constructive algorithms, greedy, math	800	x23278
1714G	Path Prefixes binary search, data structures, dfs and similar, trees	1700	x7241
1714F	Build a Tree and That Is It constructive algorithms, implementation, trees	1900	x3108
1714E	Add Modulo 10 brute force, math, number theory	1400	x15569
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x8806
1714C	Minimum Varied Number greedy	800	x30221
1714B	Remove Prefix data structures, greedy, implementation	800	x29549
1714A	Everyone Loves to Sleep implementation, math	900	x28758
1713F	Lost Array bitmasks, combinatorics, constructive algorithms, dp, math	2900	x514
1713E	Cross Swapping 2-sat, data structures, dsu, greedy, matrices	2400	x1528
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5506
1713C	Build Permutation constructive algorithms, dp, math	1200	x16921
1713B	Optimal Reduction constructive algorithms, sortings	1000	x20803
1713A	Traveling Salesman Problem geometry, greedy, implementation	800	x21716
1712F	Triameter binary search, data structures, dfs and similar, trees	3200	x307
1712E2	LCM Sum (hard version) brute force, data structures, math, number theory, two pointers	2500	x1191
1712E1	LCM Sum (easy version) binary search, brute force, combinatorics, math, number theory, two pointers	2300	x2059
1712D	Empty Graph binary search, constructive algorithms, data structures, greedy, shortest paths	2000	x4311
1712C	Sort Zero greedy, sortings	1100	x19338
1712B	Woeful Permutation constructive algorithms, greedy, number theory	800	x21315
1712A	Wonderful Permutation greedy, implementation	800	x23791
1711B	Party brute force, graphs	1300	x13181
1711A	Perfect Permutation constructive algorithms	800	x24872
1710E	Two Arrays binary search, games, graph matchings	2400	x475
1710D	Recover the Tree constructive algorithms, trees	3400	x411
1710C	XOR Triangle bitmasks, brute force, constructive algorithms, dp, greedy, math	2500	x1285
1710B	Rain binary search, brute force, data structures, geometry, greedy, implementation, math	2100	x2370
1710A	Color the Picture constructive algorithms, greedy, math	1500	x10673
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x537
1709E	XOR Tree bitmasks, data structures, dfs and similar, dsu, greedy, trees	2400	x2486
1709D	Rorororobot binary search, data structures, greedy, math	1700	x8159
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8595
1709B	Also Try Minecraft data structures, dp, implementation	900	x22022
1709A	Three Doors brute force, greedy, implementation, math	800	x29178
1708B	Difference of GCDs constructive algorithms, math	1100	x19773
1708A	Difference Operations greedy, math	800	x21536
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x146
1707E	Replace binary search, data structures	3500	x568
1707D	Partial Virtual Trees combinatorics, dfs and similar, dp, math, trees	3000	x590
1707C	DFS Trees dfs and similar, dsu, graphs, greedy, sortings, trees	2400	x1403
1707B	Difference Array brute force, data structures, implementation, sortings	1900	x5578
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x12993
1706E	Qpwoeirut and Vertices binary search, data structures, dfs and similar, divide and conquer, dsu, greedy, trees	2300	x2413
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1662
1706D1	Chopping Carrots (Easy Version) binary search, brute force, constructive algorithms, greedy, number theory	1700	x6734
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x14521
1706B	Making Towers dp, greedy, math	1100	x16279
1706A	Another String Minimization Problem 2-sat, constructive algorithms, greedy, string suffix structures, strings	800	x22634
1705F	Mark and the Online Exam bitmasks, constructive algorithms, interactive, probabilities	2900	x582
1705E	Mark and Professor Koro binary search, bitmasks, brute force, combinatorics, data structures, greedy	2300	x1987
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6145
1705C	Mark and His Unfinished Essay brute force, implementation	1400	x13055
1705B	Mark the Dust Sweeper constructive algorithms, greedy, implementation	900	x22303
1705A	Mark the Photographer greedy, sortings	800	x24882
1704H2	Game of AI (hard version) combinatorics, fft, math	3500	x78
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x173
1704G	Mio and Lucky Array constructive algorithms, fft, math, strings	3500	x99
1704F	Colouring Game constructive algorithms, dp, games	2600	x943
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2242
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x4886
1704C	Virus greedy, implementation, sortings	1200	x14715
1704B	Luke is a Foodie brute force, greedy, implementation	1000	x16705
1704A	Two 0-1 Sequences constructive algorithms, greedy	800	x15834
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x10174
1703F	Yet Another Problem About Pairs Satisfying an Inequality binary search, data structures, dp, greedy, sortings	1300	x18625
1703E	Mirror Grid implementation	1200	x17199
1703D	Double Strings brute force, data structures, strings	1100	x24682
1703C	Cypher brute force, implementation, strings	800	x34474
1703B	ICPC Balloons data structures, implementation	800	x46287
1703A	YES or YES? brute force, implementation, strings	800	x64163
1702G2	Passable Paths (hard version) data structures, dfs and similar, trees	2000	x4388
1702G1	Passable Paths (easy version) dfs and similar, trees	1900	x5183
1702F	Equate Multisets constructive algorithms, data structures, greedy, math, number theory	1700	x8040
1702E	Split Into Two Sets dfs and similar, dsu, graphs	1600	x12559
1702D	Not a Cheap String greedy	1000	x23142
1702C	Train and Queries data structures, greedy	1100	x21627
1702B	Polycarp Writes a String from Memory greedy	800	x27069
1702A	Round Down the Price constructive algorithms	800	x33744
1701F	Points combinatorics, data structures, implementation, math, matrices	2500	x901
1701E	Text Editor brute force, dp, greedy, strings	2500	x1085
1701D	Permutation Restoration binary search, data structures, greedy, math, sortings, two pointers	1900	x5538
1701C	Schedule Management binary search, greedy, implementation, two pointers	1400	x16004
1701B	Permutation greedy	800	x20009
1701A	Grass Field implementation	800	x25938
1700F	Puzzle constructive algorithms, dp, greedy	2600	x862
1700E	Serega the Pirate brute force, constructive algorithms	2600	x831
1700D	River Locks binary search, dp, greedy, math	1900	x5879
1700C	Helping the Nature constructive algorithms, data structures, greedy	1700	x10558
1700B	Palindromic Numbers constructive algorithms, implementation, math	1100	x18350
1700A	Optimal Path constructive algorithms, greedy, math	800	x22629
1699E	Three Days Grace data structures, dp, greedy, math, number theory, two pointers	2600	x1105
1699D	Almost Triple Deletions data structures, dp, greedy	2300	x3049