Problemset - Codeforces

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Codeforces Round 1002 (Div. 2)
42:18:22
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Problems

#	Name
1692A	Marathon implementation	800	x69365
1691F	K-Set Tree combinatorics, dfs and similar, dp, math, trees	2500	x1018
1691E	Number of Groups data structures, dfs and similar, dsu, graphs, greedy, sortings	2300	x1880
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5981
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x16052
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x24548
1691A	Beat The Odds brute force, greedy, math	800	x30908
1690G	Count the Trains binary search, data structures, greedy, sortings	2000	x3503
1690F	Shifting String graphs, math, number theory, strings	1700	x7354
1690E	Price Maximization binary search, greedy, math, two pointers	1500	x15616
1690D	Black and White Stripe implementation, two pointers	1000	x32057
1690C	Restoring the Duration of Tasks data structures, greedy, implementation	800	x26561
1690B	Array Decrements greedy, implementation	800	x25898
1690A	Print a Pedestal (Codeforces logo?) constructive algorithms, greedy	800	x34099
1689E	ANDfinity bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2500	x1247
1689D	Lena and Matrix data structures, dp, geometry, shortest paths	1900	x4302
1689C	Infected Tree dfs and similar, dp, trees	1600	x11640
1689B	Mystic Permutation data structures, greedy	900	x17892
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16909
1688C	Manipulating History constructive algorithms, greedy, strings	1700	x8315
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x18457
1688A	Cirno's Perfect Bitmasks Classroom bitmasks, brute force	800	x22019
1687F	Koishi's Unconscious Permutation fft, math	3500	x89
1687E	Become Big For Me combinatorics, constructive algorithms, greedy, math, number theory	3500	x235
1687D	Cute number binary search, brute force, data structures, dsu, implementation, math	2900	x619
1687C	Sanae and Giant Robot binary search, brute force, data structures, dsu, greedy, sortings	2500	x1498
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3742
1687A	The Enchanted Forest brute force, greedy	1600	x10605
1686B	Odd Subarrays dp, greedy	800	x18498
1686A	Everything Everywhere All But One greedy	800	x20625
1685E	The Ultimate LIS Problem data structures, greedy	3500	x156
1685D2	Permutation Weight (Hard Version) constructive algorithms, greedy	3500	x111
1685D1	Permutation Weight (Easy Version) constructive algorithms, dfs and similar, dsu	2800	x453
1685C	Bring Balance brute force, constructive algorithms, greedy	2600	x1112
1685B	Linguistics greedy, implementation, sortings, strings	2000	x3328
1685A	Circular Local MiniMax constructive algorithms, greedy, sortings	1100	x17549
1684H	Hard Cut constructive algorithms, dfs and similar, divide and conquer, math	3400	x249
1684G	Euclid Guess constructive algorithms, flows, graph matchings, math, number theory	2800	x638
1684F	Diverse Segments data structures, two pointers	2600	x940
1684E	MEX vs DIFF binary search, brute force, constructive algorithms, data structures, greedy, two pointers	2100	x3258
1684D	Traps constructive algorithms, greedy, sortings	1700	x9970
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x12605
1684B	Z mod X = C constructive algorithms, math	800	x21176
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x24131
1682F	MCMF? data structures, flows, graphs, greedy, sortings, two pointers	2700	x324
1682E	Unordered Swaps constructive algorithms, dfs and similar, graphs, greedy, math, sortings, trees	2700	x635
1682D	Circular Spanning Tree constructive algorithms, implementation, trees	2000	x3396
1682C	LIS or Reverse LIS? constructive algorithms, greedy, implementation, math	1400	x15249
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x19533
1682A	Palindromic Indices greedy, strings	800	x19427
1681F	Unique Occurrences data structures, dfs and similar, divide and conquer, dp, dsu, trees	2300	x1840
1681E	Labyrinth Adventures data structures, dp, matrices, shortest paths	2600	x812
1681D	Required Length brute force, dfs and similar, dp, hashing, shortest paths	1700	x9883
1681C	Double Sort implementation, sortings	1200	x17708
1681B	Card Trick implementation, math	800	x20281
1681A	Game with Cards games, greedy	800	x21134
1680F	Lenient Vertex Cover dfs and similar, divide and conquer, dsu, graphs, trees	2600	x687
1680E	Moving Chips bitmasks, dp, greedy	2000	x3875
1680D	Dog Walking brute force, greedy, math	2400	x1200
1680C	Binary String binary search, greedy, strings, two pointers	1600	x10197
1680B	Robots implementation	800	x18562
1680A	Minimums and Maximums brute force, math	800	x21752
1679F	Formalism for Formalism bitmasks, dp, math	2600	x586
1679E	Typical Party in Dorm bitmasks, combinatorics, dp, strings	2400	x1252
1679D	Toss a Coin to Your Graph... binary search, dfs and similar, dp, graphs	1900	x5041
1679C	Rooks Defenders data structures, implementation	1400	x10657
1679B	Stone Age Problem data structures, implementation	1200	x19758
1679A	AvtoBus brute force, greedy, math, number theory	900	x26181
1678B2	Tokitsukaze and Good 01-String (hard version) dp, greedy, implementation	1800	x6742
1678B1	Tokitsukaze and Good 01-String (easy version) implementation	800	x16066
1678A	Tokitsukaze and All Zero Sequence implementation	800	x18365
1677F	Tokitsukaze and Gems dp, math	3500	x97
1677E	Tokitsukaze and Beautiful Subsegments data structures	2900	x580
1677D	Tokitsukaze and Permutations dp, math	2500	x1315
1677C	Tokitsukaze and Two Colorful Tapes constructive algorithms, dfs and similar, graphs, greedy	1900	x3697
1677B	Tokitsukaze and Meeting data structures, implementation, math	1700	x4280
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8642
1676H2	Maximum Crossings (Hard Version) data structures, divide and conquer, sortings	1500	x11262
1676H1	Maximum Crossings (Easy Version) brute force	1400	x14609
1676G	White-Black Balanced Subtrees dfs and similar, dp, graphs, trees	1300	x16811
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x17629
1676E	Eating Queries binary search, greedy, sortings	1100	x27906
1676D	X-Sum brute force, greedy, implementation	1000	x26246
1676C	Most Similar Words brute force, greedy, implementation, implementation, math, strings	800	x31112
1676B	Equal Candies greedy, math, sortings	800	x51161
1676A	Lucky? implementation	800	x68864
1675G	Sorting Pancakes dp	2300	x1810
1675F	Vlad and Unfinished Business dfs and similar, dp, greedy, trees	1800	x5531
1675E	Replace With the Previous, Minimize dsu, greedy, strings	1500	x10976
1675D	Vertical Paths graphs, implementation, trees	1300	x13391
1675C	Detective Task implementation	1100	x18482
1675B	Make It Increasing greedy, implementation	900	x29115
1675A	Food for Animals greedy, math	800	x33891
1674G	Remove Directed Edges dfs and similar, dp, graphs	2000	x2587
1674F	Desktop Rearrangement data structures, greedy, implementation	1800	x5174
1674E	Breaking the Wall binary search, brute force, constructive algorithms, greedy, math	2000	x6609
1674D	A-B-C Sort constructive algorithms, implementation, sortings	1200	x16727
1674C	Infinite Replacement combinatorics, implementation, strings	1000	x24136
1674B	Dictionary combinatorics, math	800	x26826
1674A	Number Transformation constructive algorithms, math	800	x26607