Problemset - Codeforces

Problems

#	Name
1681F	Unique Occurrences data structures, dfs and similar, divide and conquer, dp, dsu, trees	2300	x1865
1681E	Labyrinth Adventures data structures, dp, matrices, shortest paths	2600	x815
1681D	Required Length brute force, dfs and similar, dp, hashing, shortest paths	1700	x9951
1681C	Double Sort implementation, sortings	1200	x17809
1681B	Card Trick implementation, math	800	x20320
1681A	Game with Cards games, greedy	800	x21166
1680F	Lenient Vertex Cover dfs and similar, divide and conquer, dsu, graphs, trees	2600	x714
1680E	Moving Chips bitmasks, dp, greedy	2000	x3897
1680D	Dog Walking brute force, greedy, math	2400	x1211
1680C	Binary String binary search, greedy, strings, two pointers	1600	x10241
1680B	Robots implementation	800	x18604
1680A	Minimums and Maximums brute force, math	800	x21796
1679F	Formalism for Formalism bitmasks, dp, math	2600	x591
1679E	Typical Party in Dorm bitmasks, combinatorics, dp, strings	2400	x1260
1679D	Toss a Coin to Your Graph... binary search, dfs and similar, dp, graphs	1900	x5084
1679C	Rooks Defenders data structures, implementation	1400	x10722
1679B	Stone Age Problem data structures, implementation	1200	x20133
1679A	AvtoBus brute force, greedy, math, number theory	900	x26787
1678B2	Tokitsukaze and Good 01-String (hard version) dp, greedy, implementation	1800	x6781
1678B1	Tokitsukaze and Good 01-String (easy version) implementation	800	x16097
1678A	Tokitsukaze and All Zero Sequence implementation	800	x18409
1677F	Tokitsukaze and Gems dp, math	3500	x98
1677E	Tokitsukaze and Beautiful Subsegments data structures	2900	x584
1677D	Tokitsukaze and Permutations dp, math	2500	x1322
1677C	Tokitsukaze and Two Colorful Tapes constructive algorithms, dfs and similar, graphs, greedy	1900	x3722
1677B	Tokitsukaze and Meeting data structures, implementation, math	1700	x4307
1677A	Tokitsukaze and Strange Inequality brute force, data structures, dp	1600	x8705
1676H2	Maximum Crossings (Hard Version) data structures, divide and conquer, sortings	1500	x11438
1676H1	Maximum Crossings (Easy Version) brute force	1400	x14799
1676G	White-Black Balanced Subtrees dfs and similar, dp, graphs, trees	1300	x17193
1676F	Longest Strike data structures, greedy, implementation, sortings, two pointers	1300	x17859
1676E	Eating Queries binary search, greedy, sortings	1100	x28247
1676D	X-Sum brute force, greedy, implementation	1000	x26658
1676C	Most Similar Words brute force, greedy, implementation, implementation, math, strings	800	x31352
1676B	Equal Candies greedy, math, sortings	800	x51887
1676A	Lucky? implementation	800	x70012
1675G	Sorting Pancakes dp	2300	x1824
1675F	Vlad and Unfinished Business dfs and similar, dp, greedy, trees	1800	x5592
1675E	Replace With the Previous, Minimize dsu, greedy, strings	1500	x11105
1675D	Vertical Paths graphs, implementation, trees	1300	x13515
1675C	Detective Task implementation	1100	x18542
1675B	Make It Increasing greedy, implementation	900	x29793
1675A	Food for Animals greedy, math	800	x34073
1674G	Remove Directed Edges dfs and similar, dp, graphs	2000	x2609
1674F	Desktop Rearrangement data structures, greedy, implementation	1800	x5207
1674E	Breaking the Wall binary search, brute force, constructive algorithms, greedy, math	2000	x6662
1674D	A-B-C Sort constructive algorithms, implementation, sortings	1200	x16842
1674C	Infinite Replacement combinatorics, implementation, strings	1000	x24305
1674B	Dictionary combinatorics, math	800	x26929
1674A	Number Transformation constructive algorithms, math	800	x26822
1673F	Anti-Theft Road Planning bitmasks, constructive algorithms, divide and conquer, greedy, interactive, math	2400	x877
1673E	Power or XOR? bitmasks, combinatorics, math, number theory	2500	x736
1673D	Lost Arithmetic Progression combinatorics, math, number theory	1900	x3377
1673C	Palindrome Basis brute force, dp, math, number theory	1500	x13708
1673B	A Perfectly Balanced String? brute force, greedy, strings	1100	x16161
1673A	Subtle Substring Subtraction games, greedy, strings	800	x18616
1672I	PermutationForces data structures, greedy	3000	x185
1672H	Zigu Zagu constructive algorithms, data structures, greedy	2700	x1004
1672G	Cross Xor constructive algorithms, graphs, math, matrices	3200	x347
1672F2	Checker for Array Shuffling constructive algorithms, dfs and similar, graphs	2800	x837
1672F1	Array Shuffling constructive algorithms, graphs, greedy	2000	x3195
1672E	notepad.exe binary search, constructive algorithms, greedy, interactive	2200	x2318
1672D	Cyclic Rotation constructive algorithms, greedy, implementation, two pointers	1700	x6471
1672C	Unequal Array constructive algorithms, greedy, implementation	1100	x13462
1672B	I love AAAB constructive algorithms, implementation	800	x16059
1672A	Log Chopping games, implementation, math	800	x16314
1671F	Permutation Counting brute force, combinatorics, dp, fft, math	2700	x343
1671E	Preorder combinatorics, divide and conquer, dp, dsu, hashing, sortings, trees	2100	x2833
1671D	Insert a Progression brute force, constructive algorithms, greedy	1600	x7914
1671C	Dolce Vita binary search, brute force, greedy, math	1200	x18558
1671B	Consecutive Points Segment brute force, math, sortings	1000	x18878
1671A	String Building implementation	800	x20704
1670F	Jee, You See? bitmasks, combinatorics, dp	2400	x1052
1670E	Hemose on the Tree bitmasks, constructive algorithms, dfs and similar, trees	2200	x1812
1670D	Very Suspicious binary search, brute force, geometry, greedy, implementation, math	1700	x5293
1670C	Where is the Pizza? data structures, dfs and similar, dsu, graphs, implementation, math	1400	x10284
1670B	Dorms War brute force, implementation, strings	1100	x12947
1670A	Prof. Slim greedy, implementation, sortings	800	x15588
1669H	Maximal AND bitmasks, greedy, math	1300	x20771
1669G	Fall Down dfs and similar, implementation	1200	x19361
1669F	Eating Candies binary search, data structures, greedy, two pointers	1100	x28324
1669E	2-Letter Strings data structures, math, strings	1200	x18812
1669D	Colorful Stamp implementation	1100	x23198
1669C	Odd/Even Increments greedy, greedy, implementation, math	800	x36821
1669B	Triple implementation, sortings	800	x46565
1669A	Division? implementation	800	x69950
1668B	Social Distance greedy, math, sortings	900	x17073
1668A	Direction Change implementation, math	800	x16454
1667F	Yin Yang implementation	3500	x107
1667E	Centroid Probabilities combinatorics, dp, fft, math	3000	x698
1667D	Edge Elimination constructive algorithms, dfs and similar, dp, trees	2900	x689
1667C	Half Queen Cover constructive algorithms, math	2400	x1720
1667B	Optimal Partition data structures, dp	2100	x3864
1667A	Make it Increasing brute force, greedy, math	1300	x15031
1666L	Labyrinth dfs and similar, graphs	1800	x3320
1666K	Kingdom Partition flows	3200	x266
1666J	Job Lookup constructive algorithms, dp, shortest paths, trees	2100	x1412
1666I	Interactive Treasure Hunt brute force, constructive algorithms, geometry, interactive, math	2200	x1535
1666H	Heroes of Might math	3500	x73
1666G	Global Warming geometry, math	3100	x139