Problemset - Codeforces

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Problems

#	Name
908E	New Year and Entity Enumeration bitmasks, combinatorics, dp, math	2500	x760
908D	New Year and Arbitrary Arrangement dp, math, probabilities	2200	x2392
906E	Reverses dp, string suffix structures, strings	3300	x454
906C	Party bitmasks, brute force, dp, graphs	2400	x1373
903F	Clear The Matrix bitmasks, dp	2200	x686
900E	Maximum Questions data structures, dp, strings	2100	x1279
900D	Unusual Sequences bitmasks, combinatorics, dp, math, number theory	2000	x3269
895C	Square Subsets bitmasks, combinatorics, dp, math	2000	x5640
894E	Ralph and Mushrooms dp, graphs	2100	x2373
894A	QAQ brute force, dp	800	x35024
893E	Counting Arrays combinatorics, dp, math, number theory	2000	x3720
893D	Credit Card data structures, dp, greedy, implementation	1900	x3074
891D	Sloth dfs and similar, dp, graph matchings, trees	3100	x194
891A	Pride brute force, dp, greedy, math, number theory	1500	x10305
889E	Mod Mod Mod binary search, dp, math	3000	x567
888F	Connecting Vertices dp, graphs	2500	x841
888D	Almost Identity Permutations combinatorics, dp, math	1600	x8496
886E	Maximum Element combinatorics, dp, math	2400	x1029
883I	Photo Processing binary search, dp	1900	x2022
883D	Packmen Strike Back binary search, dp, math	2500	x442
878E	Numbers on the blackboard combinatorics, dp	3300	x578
877B	Nikita and string brute force, dp	1500	x10541
875E	Delivery Club binary search, data structures, dp	2600	x924
873E	Awards For Contestants brute force, data structures, dp	2300	x702
873B	Balanced Substring dp, implementation	1500	x7853
870C	Maximum splitting dp, greedy, math, number theory	1300	x9232
869C	The Intriguing Obsession combinatorics, dp, math	1800	x4730
868F	Yet Another Minimization Problem divide and conquer, dp	2500	x3869
868E	Policeman and a Tree dp, graphs, trees	2700	x527
868D	Huge Strings bitmasks, brute force, dp, implementation, strings	2200	x926
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x4636
865E	Hex Dyslexia bitmasks, brute force, dp, graphs	3300	x139
865C	Gotta Go Fast binary search, dp	2400	x851
864E	Fire dp, sortings	2000	x4286
859D	Third Month Insanity dp, probabilities, trees	2100	x1052
859C	Pie Rules dp, games	1500	x5437
858C	Did you mean... dp, greedy, implementation	1500	x5636
856D	Masha and Cactus dp, trees	2400	x413
856C	Eleventh Birthday combinatorics, dp, math	2400	x629
856B	Similar Words dp, hashing, strings, trees	2300	x515
855G	Harry Vs Voldemort dfs and similar, dp, graphs, trees	3300	x222
855E	Salazar Slytherin's Locket bitmasks, dp	2200	x1803
855C	Helga Hufflepuff's Cup dp, trees	2000	x2098
855B	Marvolo Gaunt's Ring brute force, data structures, dp	1500	x8738
853D	Michael and Charging Stations binary search, dp, greedy	2400	x676
852H	Bob and stages dp, geometry	3000	x152
852E	Casinos and travel dp	2100	x1063
852B	Neural Network country dp, matrices	2000	x1466
850D	Tournament Construction constructive algorithms, dp, graphs, greedy, math	2800	x393
850C	Arpa and a game with Mojtaba bitmasks, dp, games	2200	x1513
848E	Days of Floral Colours combinatorics, divide and conquer, dp, fft, math	3400	x212
848D	Shake It! combinatorics, dp, flows, graphs	2900	x384
847E	Packmen binary search, dp	1800	x3085
846C	Four Segments brute force, data structures, dp	1800	x2690
845F	Guards In The Storehouse bitmasks, dp	2500	x458
845D	Driving Test data structures, dp, greedy	1800	x2392
840C	On the Bench combinatorics, dp	2500	x1786
840B	Leha and another game about graph constructive algorithms, data structures, dfs and similar, dp, graphs	2100	x2484
839D	Winter is here combinatorics, dp, math, number theory	2200	x2982
839C	Journey dfs and similar, dp, graphs, probabilities, trees	1500	x17045
838E	Convex Countour dp	2300	x356
838C	Future Failure dp, games	2800	x295
837D	Round Subset dp, math	2100	x5653
835F	Roads in the Kingdom dfs and similar, dp, graphs, trees	2500	x1078
835D	Palindromic characteristics brute force, dp, hashing, strings	1900	x4145
835C	Star sky dp, implementation	1600	x7961
833E	Caramel Clouds data structures, dp, sortings	3400	x225
833B	The Bakery binary search, data structures, divide and conquer, dp, two pointers	2200	x5083
830E	Perpetual Motion Machine constructive algorithms, dp, graphs, implementation, math, trees	3100	x282
830D	Singer House combinatorics, dp, graphs, trees	2800	x853
830A	Office Keys binary search, brute force, dp, greedy, sortings	1800	x7116
827F	Dirty Arkady's Kitchen data structures, dp, graphs, shortest paths	3200	x408
825F	String Compression dp, hashing, string suffix structures, strings	2400	x1527
822E	Liar binary search, dp, hashing, string suffix structures	2400	x852
822D	My pretty girl Noora brute force, dp, greedy, math, number theory	1800	x3105
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1504
817C	Really Big Numbers binary search, brute force, dp, math	1600	x7473
815C	Karen and Supermarket brute force, dp, trees	2400	x2678
814E	An unavoidable detour for home combinatorics, dp, graphs, shortest paths	2600	x672
814D	An overnight dance in discotheque dfs and similar, dp, geometry, greedy, trees	2000	x2369
814C	An impassioned circulation of affection brute force, dp, strings, two pointers	1600	x6677
813D	Two Melodies dp, flows	2600	x1034
812B	Sagheer, the Hausmeister bitmasks, brute force, dp	1600	x5207
811C	Vladik and Memorable Trip dp, implementation	1900	x3291
809D	Hitchhiking in the Baltic States data structures, dp	2900	x860
809C	Find a car combinatorics, divide and conquer, dp	2600	x813
808G	Anthem of Berland dp, strings	2300	x2774
808E	Selling Souvenirs binary search, dp, greedy, ternary search	2300	x1863
804F	Fake bullions combinatorics, dfs and similar, dp, graphs, number theory	3400	x164
804D	Expected diameter of a tree binary search, brute force, dfs and similar, dp, sortings, trees	2500	x1334
803E	Roma and Poker dp, graphs	2000	x2254
802L	Send the Fool Further! (hard) dfs and similar, dp, math, trees	2400	x313
802K	Send the Fool Further! (medium) dp, trees	2100	x641
799D	Field expansion brute force, dp, meet-in-the-middle	2100	x2066
798C	Mike and gcd problem dp, greedy, number theory	1700	x5840
798B	Mike and strings brute force, dp, strings	1300	x8432
797F	Mice and Holes data structures, dp, greedy, sortings	2600	x1229
797E	Array Queries brute force, data structures, dp	2000	x4498
797B	Odd sum dp, greedy, implementation	1400	x10634
796E	Exam Cheating binary search, dp	2400	x681