Problemset - Codeforces

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Problems

#	Name
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1249
1697D	Guess The String binary search, constructive algorithms, interactive	1900	x4525
1697C	awoo's Favorite Problem binary search, constructive algorithms, data structures, greedy, implementation, strings, two pointers	1400	x14595
1697B	Promo greedy, sortings	900	x27155
1697A	Parkway Walk greedy, implementation	800	x25864
1696H	Maximum Product? brute force, combinatorics, dp, greedy, implementation, math, two pointers	3500	x165
1696G	Fishingprince Plays With Array Again brute force, data structures, geometry, math	3300	x280
1696F	Tree Recovery brute force, constructive algorithms, dfs and similar, dsu, graphs, trees	2600	x950
1696E	Placing Jinas combinatorics, math	2000	x4163
1696D	Permutation Graph binary search, constructive algorithms, data structures, divide and conquer, greedy, shortest paths	1900	x5536
1696C	Fishingprince Plays With Array constructive algorithms, greedy, implementation, math	1400	x11784
1696B	NIT Destroys the Universe greedy	900	x22400
1696A	NIT orz! bitmasks, greedy	800	x18997
1695E	Ambiguous Dominoes constructive algorithms, dfs and similar, graphs	2700	x454
1695D2	Tree Queries (Hard Version) constructive algorithms, dfs and similar, dp, greedy, trees	2300	x2043
1695D1	Tree Queries (Easy Version) brute force, constructive algorithms, dfs and similar, dp, greedy, trees	2200	x2211
1695C	Zero Path brute force, data structures, dp, graphs, greedy, shortest paths	1700	x11123
1695B	Circle Game games, greedy	1000	x18683
1695A	Subrectangle Guess games	800	x16423
1694B	Paranoid String constructive algorithms, greedy	1200	x19389
1694A	Creep greedy, implementation	800	x22834
1693F	I Might Be Wrong binary search, greedy, two pointers	3400	x424
1693E	Outermost Maximums data structures, greedy	3400	x434
1693D	Decinc Dividing brute force, data structures, divide and conquer, dp, greedy	2800	x861
1693C	Keshi in Search of AmShZ graphs, greedy, shortest paths	2300	x2680
1693B	Fake Plastic Trees dfs and similar, dp, greedy, trees	1700	x8654
1693A	Directional Increase greedy	1300	x16360
1692H	Gambling data structures, dp, greedy, math	1700	x7645
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x18498
1692F	3SUM brute force, math	1300	x23377
1692E	Binary Deque binary search, implementation, two pointers	1200	x23027
1692D	The Clock brute force, implementation	1100	x19759
1692C	Where's the Bishop? implementation	800	x34892
1692B	All Distinct greedy, sortings	800	x34846
1692A	Marathon implementation	800	x67837
1691F	K-Set Tree combinatorics, dfs and similar, dp, math, trees	2500	x1005
1691E	Number of Groups data structures, dfs and similar, dsu, graphs, greedy, sortings	2300	x1868
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5920
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15870
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x23920
1691A	Beat The Odds brute force, greedy, math	800	x30774
1690G	Count the Trains binary search, data structures, greedy, sortings	2000	x3466
1690F	Shifting String graphs, math, number theory, strings	1700	x7289
1690E	Price Maximization binary search, greedy, math, two pointers	1500	x15442
1690D	Black and White Stripe implementation, two pointers	1000	x31133
1690C	Restoring the Duration of Tasks data structures, greedy, implementation	800	x26413
1690B	Array Decrements greedy, implementation	800	x25750
1690A	Print a Pedestal (Codeforces logo?) constructive algorithms, greedy	800	x33876
1689E	ANDfinity bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2500	x1238
1689D	Lena and Matrix data structures, dp, geometry, shortest paths	1900	x4275
1689C	Infected Tree dfs and similar, dp, trees	1600	x11472
1689B	Mystic Permutation data structures, greedy	900	x17729
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16874
1688C	Manipulating History constructive algorithms, greedy, strings	1700	x8226
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x18377
1688A	Cirno's Perfect Bitmasks Classroom bitmasks, brute force	800	x21897
1687F	Koishi's Unconscious Permutation fft, math	3500	x87
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	x616
1687C	Sanae and Giant Robot binary search, brute force, data structures, dsu, greedy, sortings	2500	x1443
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3709
1687A	The Enchanted Forest brute force, greedy	1600	x10514
1686B	Odd Subarrays dp, greedy	800	x18416
1686A	Everything Everywhere All But One greedy	800	x20556
1685E	The Ultimate LIS Problem data structures, greedy	3500	x154
1685D2	Permutation Weight (Hard Version) constructive algorithms, greedy	3500	x108
1685D1	Permutation Weight (Easy Version) constructive algorithms, dfs and similar, dsu	2800	x451
1685C	Bring Balance brute force, constructive algorithms, greedy	2600	x1103
1685B	Linguistics greedy, implementation, sortings, strings	2000	x3316
1685A	Circular Local MiniMax constructive algorithms, greedy, sortings	1100	x17354
1684H	Hard Cut constructive algorithms, dfs and similar, divide and conquer, math	3400	x245
1684G	Euclid Guess constructive algorithms, flows, graph matchings, math, number theory	2800	x622
1684F	Diverse Segments data structures, two pointers	2600	x929
1684E	MEX vs DIFF binary search, brute force, constructive algorithms, data structures, greedy, two pointers	2100	x3216
1684D	Traps constructive algorithms, greedy, sortings	1700	x9863
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x12472
1684B	Z mod X = C constructive algorithms, math	800	x21116
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x24054
1682F	MCMF? data structures, flows, graphs, greedy, sortings, two pointers	2700	x320
1682E	Unordered Swaps constructive algorithms, dfs and similar, graphs, greedy, math, sortings, trees	2700	x626
1682D	Circular Spanning Tree constructive algorithms, implementation, trees	2000	x3364
1682C	LIS or Reverse LIS? constructive algorithms, greedy, implementation, math	1400	x15015
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x19149
1682A	Palindromic Indices greedy, strings	800	x19365
1681F	Unique Occurrences data structures, dfs and similar, divide and conquer, dp, dsu, trees	2300	x1824
1681E	Labyrinth Adventures data structures, dp, matrices, shortest paths	2600	x807
1681D	Required Length brute force, dfs and similar, dp, hashing, shortest paths	1700	x9798
1681C	Double Sort implementation, sortings	1200	x17582
1681B	Card Trick implementation, math	800	x20231
1681A	Game with Cards games, greedy	800	x21084
1680F	Lenient Vertex Cover dfs and similar, divide and conquer, dsu, graphs, trees	2600	x684
1680E	Moving Chips bitmasks, dp, greedy	2000	x3849
1680D	Dog Walking brute force, greedy, math	2400	x1191
1680C	Binary String binary search, greedy, strings, two pointers	1600	x10110
1680B	Robots implementation	800	x18503
1680A	Minimums and Maximums brute force, math	800	x21700
1679F	Formalism for Formalism bitmasks, dp, math	2600	x578
1679E	Typical Party in Dorm bitmasks, combinatorics, dp, strings	2400	x1217
1679D	Toss a Coin to Your Graph... binary search, dfs and similar, dp, graphs	1900	x4981
1679C	Rooks Defenders data structures, implementation	1400	x10519