Problemset - Codeforces

Problems

#	Name
1695A	Subrectangle Guess games	800	x16386
1694B	Paranoid String constructive algorithms, greedy	1200	x19258
1694A	Creep greedy, implementation	800	x22730
1693F	I Might Be Wrong binary search, greedy, two pointers	3400	x419
1693E	Outermost Maximums data structures, greedy	3400	x431
1693D	Decinc Dividing brute force, data structures, divide and conquer, dp, greedy	2800	x853
1693C	Keshi in Search of AmShZ graphs, greedy, shortest paths	2300	x2654
1693B	Fake Plastic Trees dfs and similar, dp, greedy, trees	1700	x8570
1693A	Directional Increase greedy	1300	x16248
1692H	Gambling data structures, dp, greedy, math	1700	x7549
1692G	2^Sort data structures, dp, sortings, two pointers	1400	x18137
1692F	3SUM brute force, math	1300	x23113
1692E	Binary Deque binary search, implementation, two pointers	1200	x22572
1692D	The Clock brute force, implementation	1100	x19602
1692C	Where's the Bishop? implementation	800	x34605
1692B	All Distinct greedy, sortings	800	x34578
1692A	Marathon implementation	800	x66785
1691F	K-Set Tree combinatorics, dfs and similar, dp, math, trees	2500	x997
1691E	Number of Groups data structures, dfs and similar, dsu, graphs, greedy, sortings	2300	x1852
1691D	Max GEQ Sum binary search, constructive algorithms, data structures, divide and conquer, implementation, two pointers	1800	x5873
1691C	Sum of Substrings brute force, constructive algorithms, greedy, math, strings	1400	x15763
1691B	Shoe Shuffling constructive algorithms, greedy, implementation, two pointers	1000	x23544
1691A	Beat The Odds brute force, greedy, math	800	x30686
1690G	Count the Trains binary search, data structures, greedy, sortings	2000	x3434
1690F	Shifting String graphs, math, number theory, strings	1700	x7225
1690E	Price Maximization binary search, greedy, math, two pointers	1500	x15341
1690D	Black and White Stripe implementation, two pointers	1000	x30525
1690C	Restoring the Duration of Tasks data structures, greedy, implementation	800	x26316
1690B	Array Decrements greedy, implementation	800	x25548
1690A	Print a Pedestal (Codeforces logo?) constructive algorithms, greedy	800	x33727
1689E	ANDfinity bitmasks, brute force, constructive algorithms, dfs and similar, dsu, graphs	2500	x1230
1689D	Lena and Matrix data structures, dp, geometry, shortest paths	1900	x4250
1689C	Infected Tree dfs and similar, dp, trees	1600	x11390
1689B	Mystic Permutation data structures, greedy	900	x17621
1689A	Lex String brute force, greedy, implementation, sortings, two pointers	800	x16840
1688C	Manipulating History constructive algorithms, greedy, strings	1700	x8200
1688B	Patchouli's Magical Talisman bitmasks, constructive algorithms, greedy, sortings	800	x18337
1688A	Cirno's Perfect Bitmasks Classroom bitmasks, brute force	800	x21786
1687F	Koishi's Unconscious Permutation fft, math	3500	x86
1687E	Become Big For Me combinatorics, constructive algorithms, greedy, math, number theory	3500	x233
1687D	Cute number binary search, brute force, data structures, dsu, implementation, math	2900	x605
1687C	Sanae and Giant Robot binary search, brute force, data structures, dsu, greedy, sortings	2500	x1438
1687B	Railway System constructive algorithms, graphs, greedy, interactive, sortings	1700	x3680
1687A	The Enchanted Forest brute force, greedy	1600	x10463
1686B	Odd Subarrays dp, greedy	800	x18340
1686A	Everything Everywhere All But One greedy	800	x20522
1685E	The Ultimate LIS Problem data structures, greedy	3500	x152
1685D2	Permutation Weight (Hard Version) constructive algorithms, greedy	3500	x108
1685D1	Permutation Weight (Easy Version) constructive algorithms, dfs and similar, dsu	2800	x445
1685C	Bring Balance brute force, constructive algorithms, greedy	2600	x1095
1685B	Linguistics greedy, implementation, sortings, strings	2000	x3300
1685A	Circular Local MiniMax constructive algorithms, greedy, sortings	1100	x17231
1684H	Hard Cut constructive algorithms, dfs and similar, divide and conquer, math	3400	x241
1684G	Euclid Guess constructive algorithms, flows, graph matchings, math, number theory	2800	x620
1684F	Diverse Segments data structures, two pointers	2600	x924
1684E	MEX vs DIFF binary search, brute force, constructive algorithms, data structures, greedy, two pointers	2100	x3195
1684D	Traps constructive algorithms, greedy, sortings	1700	x9772
1684C	Column Swapping brute force, constructive algorithms, greedy, implementation, sortings	1400	x12415
1684B	Z mod X = C constructive algorithms, math	800	x21056
1684A	Digit Minimization constructive algorithms, games, math, strings	800	x23989
1682F	MCMF? data structures, flows, graphs, greedy, sortings, two pointers	2700	x318
1682E	Unordered Swaps constructive algorithms, dfs and similar, graphs, greedy, math, sortings, trees	2700	x626
1682D	Circular Spanning Tree constructive algorithms, implementation, trees	2000	x3347
1682C	LIS or Reverse LIS? constructive algorithms, greedy, implementation, math	1400	x14891
1682B	AND Sorting bitmasks, constructive algorithms, sortings	1100	x18909
1682A	Palindromic Indices greedy, strings	800	x19330
1681F	Unique Occurrences data structures, dfs and similar, divide and conquer, dp, dsu, trees	2300	x1803
1681E	Labyrinth Adventures data structures, dp, matrices, shortest paths	2600	x803
1681D	Required Length brute force, dfs and similar, dp, hashing, shortest paths	1700	x9739
1681C	Double Sort implementation, sortings	1200	x17475
1681B	Card Trick implementation, math	800	x20175
1681A	Game with Cards games, greedy	800	x21054
1680F	Lenient Vertex Cover dfs and similar, divide and conquer, dsu, graphs, trees	2600	x678
1680E	Moving Chips bitmasks, dp, greedy	2000	x3825
1680D	Dog Walking brute force, greedy, math	2400	x1183
1680C	Binary String binary search, greedy, strings, two pointers	1600	x10037
1680B	Robots implementation	800	x18445
1680A	Minimums and Maximums brute force, math	800	x21653
1679F	Formalism for Formalism bitmasks, dp, math	2600	x569
1679E	Typical Party in Dorm bitmasks, combinatorics, dp, strings	2400	x1204
1679D	Toss a Coin to Your Graph... binary search, dfs and similar, dp, graphs	1900	x4940
1679C	Rooks Defenders data structures, implementation	1400	x10422
1679B	Stone Age Problem data structures, implementation	1200	x18908
1679A	AvtoBus brute force, greedy, math, number theory	900	x24841
1678B2	Tokitsukaze and Good 01-String (hard version) dp, greedy, implementation	1800	x6674
1678B1	Tokitsukaze and Good 01-String (easy version) implementation	800	x15982
1678A	Tokitsukaze and All Zero Sequence implementation	800	x18235
1677F	Tokitsukaze and Gems dp, math	3500	x94
1677E	Tokitsukaze and Beautiful Subsegments data structures	2900	x575
1677D	Tokitsukaze and Permutations dp, math	2500	x1287
1677C	Tokitsukaze and Two Colorful Tapes constructive algorithms, dfs and similar, graphs, greedy	1900	x3636
1677B	Tokitsukaze and Meeting data structures, implementation, math	1700	x4211
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8511
1676H2	Maximum Crossings (Hard Version) data structures, divide and conquer, sortings	1500	x10922
1676H1	Maximum Crossings (Easy Version) brute force	1400	x14214
1676G	White-Black Balanced Subtrees dfs and similar, dp, graphs, trees	1300	x16035
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x16974
1676E	Eating Queries binary search, greedy, sortings	1100	x26979
1676D	X-Sum brute force, greedy, implementation	1000	x25500
1676C	Most Similar Words brute force, greedy, implementation, implementation, math, strings	800	x30445