Problemset - Codeforces

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Codeforces Round 941 (Div. 1)
11:55:48
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Codeforces Round 941 (Div. 2)
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Problems

#	Name
926J	Segments data structures	2100	x372
926F	Mobile Communications	2000	x221
920F	SUM and REPLACE brute force, data structures, dsu, number theory	2000	x6191
920E	Connected Components? data structures, dfs and similar, dsu, graphs	2100	x5766
919E	Congruence Equation chinese remainder theorem, math, number theory	2100	x1819
916B	Jamie and Binary Sequence (changed after round) bitmasks, greedy, math	2000	x1668
912D	Fishes data structures, graphs, greedy, probabilities, shortest paths	2100	x1935
911E	Stack Sorting constructive algorithms, data structures, greedy, implementation	2000	x2460
909D	Colorful Points data structures, greedy, implementation	2100	x1672
900E	Maximum Questions data structures, dp, strings	2100	x1027
900D	Unusual Sequences bitmasks, combinatorics, dp, math, number theory	2000	x2969
899F	Letters Removing data structures, strings	2100	x1571
899E	Segments Removal data structures, dsu, flows, implementation, two pointers	2000	x2732
896B	Ithea Plays With Chtholly binary search, constructive algorithms, games, greedy, interactive	2000	x2047
895D	String Mark combinatorics, math, strings	2100	x1086
895C	Square Subsets bitmasks, combinatorics, dp, math	2000	x5105
894E	Ralph and Mushrooms dp, graphs	2100	x2136
893E	Counting Arrays combinatorics, dp, math, number theory	2000	x3253
891B	Gluttony constructive algorithms, greedy	2000	x2895
886D	Restoration of string constructive algorithms, graphs, implementation	2000	x1719
877E	Danil and a Part-time Job bitmasks, data structures, trees	2000	x4231
877D	Olya and Energy Drinks data structures, dfs and similar, graphs, shortest paths	2100	x3941
875C	National Property 2-sat, dfs and similar, graphs, implementation	2100	x1908
870D	Something with XOR Queries brute force, interactive, probabilities	2000	x1193
864E	Fire dp, sortings	2000	x4122
863E	Turn Off The TV data structures, sortings	2000	x2942
862E	Mahmoud and Ehab and the function binary search, data structures, sortings	2100	x1388
862D	Mahmoud and Ehab and the binary string binary search, divide and conquer, interactive	2000	x1648
859E	Desk Disorder combinatorics, dfs and similar, dsu, graphs, trees	2100	x1640
859D	Third Month Insanity dp, probabilities, trees	2100	x848
855C	Helga Hufflepuff's Cup dp, trees	2000	x1974
853C	Boredom data structures	2100	x1387
852E	Casinos and travel dp	2100	x808
852D	Exploration plan binary search, flows, graph matchings, shortest paths	2100	x946
852C	Property greedy, sortings	2100	x374
852B	Neural Network country dp, matrices	2000	x1369
850B	Arpa and a list of numbers implementation, number theory	2100	x1973
847F	Berland Elections greedy, sortings	2100	x848
843B	Interactive LowerBound brute force, interactive, probabilities	2000	x2132
842D	Vitya and Strange Lesson binary search, data structures	2000	x3209
842C	Ilya And The Tree dfs and similar, graphs, math, number theory, trees	2000	x3410
840B	Leha and another game about graph constructive algorithms, data structures, dfs and similar, dp, graphs	2100	x2239
838B	Diverging Directions data structures, dfs and similar, trees	2100	x694
837E	Vasya's Function binary search, implementation, math	2100	x1506
837D	Round Subset dp, math	2100	x4780
827C	DNA Evolution data structures, strings	2100	x1612
821E	Okabe and El Psy Kongroo dp, matrices	2100	x1410
818F	Level Generation binary search, math, ternary search	2100	x1284
818C	Sofa Thief brute force, implementation	2000	x1212
817E	Choosing The Commander bitmasks, data structures, trees	2000	x2683
814D	An overnight dance in discotheque dfs and similar, dp, geometry, greedy, trees	2000	x2124
811D	Vladik and Favorite Game constructive algorithms, dfs and similar, graphs, interactive	2100	x1524
803F	Coprime Subsequences bitmasks, combinatorics, number theory	2000	x2982
803E	Roma and Poker dp, graphs	2000	x2094
802K	Send the Fool Further! (medium) dp, trees	2100	x577
802D	Marmots (easy) math	2100	x437
799D	Field expansion brute force, dp, meet-in-the-middle	2100	x1969
797E	Array Queries brute force, data structures, dp	2000	x4043
797D	Broken BST data structures, dfs and similar	2100	x1747
796D	Police Stations constructive algorithms, dfs and similar, dp, graphs, shortest paths, trees	2100	x5119
793D	Presents in Bankopolis dp, graphs, shortest paths	2100	x1574
792C	Divide by Three dp, greedy, math, number theory	2000	x4177
788B	Weird journey combinatorics, constructive algorithms, dfs and similar, dsu, graphs	2100	x2279
786A	Berzerk dfs and similar, dp, games	2000	x2303
784G	BF Calculator *special problem	2000	x719
784E	Twisted Circuit *special problem, brute force, implementation	2000	x1869
784B	Kids' Riddle *special problem	2000	x829
780E	Underground Lab constructive algorithms, dfs and similar, graphs	2100	x2291
777E	Hanoi Factory brute force, data structures, dp, greedy, sortings	2000	x3855
776E	The Holmes Children math, number theory	2100	x2098
776D	The Door Problem 2-sat, dfs and similar, dsu, graphs	2000	x4779
774L	Bars *special problem, binary search	2000	x321
774J	Stepan's Series *special problem, dp	2000	x353
774B	Significant Cups *special problem, binary search, data structures, two pointers	2100	x216
774A	Amusement Park *special problem, ternary search	2100	x294
773B	Dynamic Problem Scoring brute force, greedy	2000	x1141
771C	Bear and Tree Jumps dfs and similar, dp, trees	2100	x2786
768E	Game of Stones bitmasks, dp, games	2100	x2629
767D	Cartons of milk binary search, data structures, greedy, sortings, two pointers	2100	x2192
767C	Garland dfs and similar, graphs, greedy, trees	2000	x3955
767B	The Queue brute force, greedy	2100	x2105
766E	Mahmoud and a xor trip bitmasks, constructive algorithms, data structures, dfs and similar, dp, math, trees	2100	x2803
766D	Mahmoud and a Dictionary data structures, dfs and similar, dp, dsu, graphs	2000	x3260
763B	Timofey and rectangles constructive algorithms, geometry	2100	x2575
762C	Two strings binary search, hashing, strings, two pointers	2100	x2352
761E	Dasha and Puzzle constructive algorithms, dfs and similar, graphs, greedy, trees	2000	x1892
758D	Ability To Convert constructive algorithms, dp, greedy, math, strings	2000	x2682
755D	PolandBall and Polygon data structures	2000	x2465
754D	Fedor and coupons binary search, data structures, greedy, sortings	2100	x2132
749D	Leaving Auction binary search, data structures	2000	x2520
748E	Santa Claus and Tangerines binary search, data structures, greedy, two pointers	2100	x1440
748D	Santa Claus and a Palindrome constructive algorithms, data structures, greedy	2100	x1810
746G	New Roads constructive algorithms, graphs, trees	2100	x1307
734E	Anton and Tree dfs and similar, dp, trees	2100	x3732
732E	Sockets greedy, sortings	2100	x1576
730I	Olympiad in Programming and Sports dp, flows, graphs, greedy	2000	x1937
730C	Bulmart binary search, dfs and similar	2100	x1004
721D	Maxim and Array constructive algorithms, data structures, greedy, math	2000	x2250
720A	Closing ceremony greedy	2000	x806
710E	Generate a String dfs and similar, dp	2000	x4964