Problemset - Codeforces

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Codeforces Round 950 (Div. 3)
2 days
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Problems

#	Name
888F	Connecting Vertices dp, graphs	2500	x757
888D	Almost Identity Permutations combinatorics, dp, math	1600	x7734
886E	Maximum Element combinatorics, dp, math	2400	x980
883I	Photo Processing binary search, dp	1900	x1900
883D	Packmen Strike Back binary search, dp, math	2500	x350
878E	Numbers on the blackboard combinatorics, dp	3300	x484
877B	Nikita and string brute force, dp	1500	x10016
875E	Delivery Club binary search, data structures, dp	2600	x855
873E	Awards For Contestants brute force, data structures, dp	2300	x492
873B	Balanced Substring dp, implementation	1500	x7434
870C	Maximum splitting dp, greedy, math, number theory	1300	x8974
869C	The Intriguing Obsession combinatorics, dp, math	1800	x4417
868F	Yet Another Minimization Problem divide and conquer, dp	2500	x3486
868E	Policeman and a Tree dp, graphs, trees	2700	x466
868D	Huge Strings bitmasks, brute force, dp, implementation, strings	2200	x893
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x4538
865E	Hex Dyslexia bitmasks, brute force, dp, graphs	3300	x120
865C	Gotta Go Fast binary search, dp	2400	x814
864E	Fire dp, sortings	2000	x4142
859D	Third Month Insanity dp, probabilities, trees	2100	x911
859C	Pie Rules dp, games	1500	x5281
858C	Did you mean... dp, greedy, implementation	1500	x5498
856D	Masha and Cactus dp, trees	2400	x372
856C	Eleventh Birthday combinatorics, dp, math	2400	x536
856B	Similar Words dp, hashing, strings, trees	2300	x478
855G	Harry Vs Voldemort dfs and similar, dp, graphs, trees	3300	x200
855E	Salazar Slytherin's Locket bitmasks, dp	2200	x1636
855C	Helga Hufflepuff's Cup dp, trees	2000	x1991
855B	Marvolo Gaunt's Ring brute force, data structures, dp	1500	x8389
853D	Michael and Charging Stations binary search, dp, greedy	2400	x654
852H	Bob and stages dp, geometry	3000	x150
852E	Casinos and travel dp	2100	x809
852B	Neural Network country dp, matrices	2000	x1382
850D	Tournament Construction constructive algorithms, dp, graphs, greedy, math	2800	x373
850C	Arpa and a game with Mojtaba bitmasks, dp, games	2200	x1379
848E	Days of Floral Colours combinatorics, divide and conquer, dp, fft, math	3400	x202
848D	Shake It! combinatorics, dp, flows, graphs	2900	x368
847E	Packmen binary search, dp	1800	x2768
846C	Four Segments brute force, data structures, dp	1800	x2619
845F	Guards In The Storehouse bitmasks, dp	2500	x422
845D	Driving Test data structures, dp, greedy	1800	x2336
840C	On the Bench combinatorics, dp	2500	x1654
840B	Leha and another game about graph constructive algorithms, data structures, dfs and similar, dp, graphs	2100	x2286
839D	Winter is here combinatorics, dp, math, number theory	2200	x2700
839C	Journey dfs and similar, dp, graphs, probabilities, trees	1500	x16008
838E	Convex Countour dp	2300	x325
838C	Future Failure dp, games	2800	x281
837D	Round Subset dp, math	2100	x4873
835F	Roads in the Kingdom dfs and similar, dp, graphs, trees	2500	x1011
835D	Palindromic characteristics brute force, dp, hashing, strings	1900	x3957
835C	Star sky dp, implementation	1600	x7657
833E	Caramel Clouds data structures, dp, sortings	3400	x215
833B	The Bakery binary search, data structures, divide and conquer, dp, two pointers	2200	x4585
830E	Perpetual Motion Machine constructive algorithms, dp, graphs, implementation, math, trees	3100	x273
830D	Singer House combinatorics, dp, graphs, trees	2800	x810
830A	Office Keys binary search, brute force, dp, greedy, sortings	1800	x6642
827F	Dirty Arkady's Kitchen data structures, dp, graphs, shortest paths	3200	x387
825F	String Compression dp, hashing, string suffix structures, strings	2400	x1350
822E	Liar binary search, dp, hashing, string suffix structures	2400	x770
822D	My pretty girl Noora brute force, dp, greedy, math, number theory	1800	x2968
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1421
817C	Really Big Numbers binary search, brute force, dp, math	1600	x7088
815C	Karen and Supermarket brute force, dp, trees	2400	x2483
814E	An unavoidable detour for home combinatorics, dp, graphs, shortest paths	2600	x641
814D	An overnight dance in discotheque dfs and similar, dp, geometry, greedy, trees	2000	x2126
814C	An impassioned circulation of affection brute force, dp, strings, two pointers	1600	x6329
813D	Two Melodies dp, flows	2600	x972
812B	Sagheer, the Hausmeister bitmasks, brute force, dp	1600	x5089
811C	Vladik and Memorable Trip dp, implementation	1900	x3205
809D	Hitchhiking in the Baltic States data structures, dp	2900	x766
809C	Find a car combinatorics, divide and conquer, dp	2600	x733
808G	Anthem of Berland dp, strings	2300	x2441
808E	Selling Souvenirs binary search, dp, greedy, ternary search	2300	x1757
804F	Fake bullions combinatorics, dfs and similar, dp, graphs, number theory	3400	x138
804D	Expected diameter of a tree binary search, brute force, dfs and similar, dp, sortings, trees	2500	x1259
803E	Roma and Poker dp, graphs	2000	x2106
802L	Send the Fool Further! (hard) dfs and similar, dp, math, trees	2400	x286
802K	Send the Fool Further! (medium) dp, trees	2100	x586
799D	Field expansion brute force, dp, meet-in-the-middle	2100	x1973
798C	Mike and gcd problem dp, greedy, number theory	1700	x5651
798B	Mike and strings brute force, dp, strings	1300	x8281
797F	Mice and Holes data structures, dp, greedy, sortings	2600	x1094
797E	Array Queries brute force, data structures, dp	2000	x4105
797B	Odd sum dp, greedy, implementation	1400	x10194
796E	Exam Cheating binary search, dp	2400	x634
796D	Police Stations constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees	2100	x5213
796C	Bank Hacking constructive algorithms, data structures, dp, trees	1900	x2982
794G	Replace All combinatorics, dp, math	3400	x324
793F	Julia the snail data structures, divide and conquer, dp	3000	x514
793E	Problem of offices constructive algorithms, dfs and similar, dp, trees	2900	x244
793D	Presents in Bankopolis dp, graphs, shortest paths	2100	x1578
792C	Divide by Three dp, greedy, math, number theory	2000	x4243
788A	Functions again dp, two pointers	1600	x8977
786A	Berzerk dfs and similar, dp, games	2000	x2310
785D	Anton and School - 2 combinatorics, dp, math, number theory	2300	x2659
780G	Andryusha and Nervous Barriers data structures, dp	2700	x648
780F	Axel and Marston in Bitland bitmasks, dp, graphs, matrices	2400	x1022
778E	Selling Numbers dp, sortings	3000	x302
777E	Hanoi Factory brute force, data structures, dp, greedy, sortings	2000	x3881
777C	Alyona and Spreadsheet binary search, data structures, dp, greedy, implementation, two pointers	1600	x6290