Problemset - Codeforces

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Codeforces Round (Div. 2)
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Problems

#	Name
894E	Ralph and Mushrooms dp, graphs	2100	x3607
894A	QAQ brute force, dp	800	x40404
893E	Counting Arrays combinatorics, dp, math, number theory	2000	x4394
893D	Credit Card data structures, dp, greedy, implementation	1900	x3397
891D	Sloth dfs and similar, dp, graph matchings, trees	3100	x490
891A	Pride brute force, dp, greedy, math, number theory	1500	x15585
889E	Mod Mod Mod binary search, dp, math	3000	x830
888F	Connecting Vertices dp, graphs	2500	x1231
888D	Almost Identity Permutations combinatorics, dp, math	1600	x11179
886E	Maximum Element combinatorics, dp, math	2400	x1282
883I	Photo Processing binary search, dp	1900	x2455
883D	Packmen Strike Back binary search, dp, math	2500	x513
878E	Numbers on the blackboard combinatorics, dp	3300	x782
877B	Nikita and string brute force, dp	1500	x12312
875E	Delivery Club binary search, data structures, dp	2600	x1060
873E	Awards For Contestants brute force, data structures, dp	2300	x834
873B	Balanced Substring dp, implementation	1500	x9334
870C	Maximum splitting dp, greedy, math, number theory	1300	x9878
869C	The Intriguing Obsession combinatorics, dp, math	1800	x5385
868F	Yet Another Minimization Problem divide and conquer, dp	2500	x5769
868E	Policeman and a Tree dp, graphs, trees	2700	x575
868D	Huge Strings bitmasks, brute force, dp, implementation, strings	2200	x1035
868C	Qualification Rounds bitmasks, brute force, constructive algorithms, dp	1500	x5118
865E	Hex Dyslexia bitmasks, brute force, dp, graphs	3300	x166
865C	Gotta Go Fast binary search, dp	2400	x970
864E	Fire dp, sortings	2000	x4913
859D	Third Month Insanity dp, probabilities, trees	2100	x1165
859C	Pie Rules dp, games	1500	x6311
858C	Did you mean... dp, greedy, implementation	1500	x5930
856D	Masha and Cactus dp, trees	2400	x634
856C	Eleventh Birthday combinatorics, dp, math	2400	x765
856B	Similar Words dp, hashing, strings, trees	2300	x678
855G	Harry Vs Voldemort dfs and similar, dp, graphs, trees	3300	x482
855E	Salazar Slytherin's Locket bitmasks, dp	2200	x2327
855C	Helga Hufflepuff's Cup dp, trees	2000	x2527
855B	Marvolo Gaunt's Ring brute force, data structures, dp	1500	x10097
853D	Michael and Charging Stations binary search, dp, greedy	2400	x733
852H	Bob and stages dp, geometry	3000	x223
852E	Casinos and travel dp	2100	x1259
852B	Neural Network country dp, matrices	2000	x1827
850D	Tournament Construction constructive algorithms, dp, graphs, greedy, math	2800	x548
850C	Arpa and a game with Mojtaba bitmasks, dp, games	2200	x2039
848E	Days of Floral Colours combinatorics, divide and conquer, dp, fft, math	3400	x317
848D	Shake It! combinatorics, dp, flows, graphs	2900	x510
847E	Packmen binary search, dp	1800	x4008
846C	Four Segments brute force, data structures, dp	1800	x3049
845F	Guards In The Storehouse bitmasks, dp	2500	x876
845D	Driving Test data structures, dp, greedy	1800	x2599
840C	On the Bench combinatorics, dp	2500	x2250
840B	Leha and another game about graph constructive algorithms, data structures, dfs and similar, dp, graphs	2100	x2943
839D	Winter is here combinatorics, dp, math, number theory	2200	x3770
839C	Journey dfs and similar, dp, graphs, probabilities, trees	1500	x21513
838E	Convex Countour dp	2300	x459
838C	Future Failure dp, games	2800	x453
837D	Round Subset dp, math	2100	x8396
835F	Roads in the Kingdom dfs and similar, dp, graphs, trees	2500	x1372
835D	Palindromic characteristics brute force, dp, hashing, strings	1900	x4952
835C	Star sky dp, implementation	1600	x9639
833E	Caramel Clouds data structures, dp, sortings	3400	x331
833B	The Bakery binary search, data structures, divide and conquer, dp, two pointers	2200	x7258
830E	Perpetual Motion Machine constructive algorithms, dp, graphs, implementation, math, trees	3100	x407
830D	Singer House combinatorics, dp, graphs, trees	2800	x1059
830A	Office Keys binary search, brute force, dp, greedy, sortings	1800	x8497
827F	Dirty Arkady's Kitchen data structures, dp, graphs, shortest paths	3200	x627
825F	String Compression dp, hashing, string suffix structures, strings	2400	x2169
822E	Liar binary search, dp, hashing, string suffix structures	2400	x1251
822D	My pretty girl Noora brute force, dp, greedy, math, number theory	1800	x3319
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1722
817C	Really Big Numbers binary search, brute force, dp, math	1600	x8739
815C	Karen and Supermarket brute force, dp, trees	2400	x3584
814E	An unavoidable detour for home combinatorics, dp, graphs, shortest paths	2600	x864
814D	An overnight dance in discotheque dfs and similar, dp, geometry, greedy, trees	2000	x2655
814C	An impassioned circulation of affection brute force, dp, strings, two pointers	1600	x8189
813D	Two Melodies dp, flows	2600	x1293
812B	Sagheer, the Hausmeister bitmasks, brute force, dp	1600	x5606
811C	Vladik and Memorable Trip dp, implementation	1900	x3538
809D	Hitchhiking in the Baltic States data structures, dp	2900	x1242
809C	Find a car combinatorics, divide and conquer, dp	2600	x955
808G	Anthem of Berland dp, strings	2300	x4233
808E	Selling Souvenirs binary search, dp, greedy, ternary search	2300	x2291
804F	Fake bullions combinatorics, dfs and similar, dp, graphs, number theory	3400	x223
804D	Expected diameter of a tree binary search, brute force, dfs and similar, dp, sortings, trees	2500	x1666
803E	Roma and Poker dp, graphs	2000	x2777
802J3	Send the Fool Further! (hard) dfs and similar, dp, math, trees	2400	x417
802J2	Send the Fool Further! (medium) dp, trees	2100	x750
799D	Field expansion brute force, dp, meet-in-the-middle	2100	x2294
798C	Mike and gcd problem dp, greedy, number theory	1700	x6503
798B	Mike and strings brute force, dp, strings	1300	x9428
797F	Mice and Holes data structures, dp, greedy, sortings	2600	x1566
797E	Array Queries brute force, data structures, dp	2000	x6157
797B	Odd sum dp, greedy, implementation	1400	x11798
796E	Exam Cheating binary search, dp	2400	x778
796D	Police Stations constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees	2100	x8074
796C	Bank Hacking constructive algorithms, data structures, dp, trees	1900	x3271
794G	Replace All combinatorics, dp, math	3400	x588
793F	Julia the snail data structures, divide and conquer, dp	3000	x909
793E	Problem of offices constructive algorithms, dfs and similar, dp, trees	2900	x338
793D	Presents in Bankopolis dp, graphs, shortest paths	2100	x1759
792C	Divide by Three dp, greedy, math, number theory	2000	x5152
788A	Functions again dp, two pointers	1600	x10368

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