Problemset - Codeforces

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Codeforces Round 977 (Div. 2, based on COMPFEST 16 - Final Round)
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Problems

#	Name
45C	Dancing Lessons data structures	1900	x898
44H	Phone Number dp	1700	x1738
44E	Anfisa the Monkey dp	1400	x5086
44D	Hyperdrive math	1800	x713
44C	Holidays implementation	1300	x3358
44B	Cola implementation	1500	x1979
43C	Lucky Tickets greedy	1300	x4270
42B	Game of chess unfinished implementation	1700	x950
42A	Guilty --- to the kitchen! greedy, implementation	1400	x2837
41E	3-cycles constructive algorithms, graphs, greedy	1900	x1958
41D	Pawn dp	1900	x2365
41C	Email address expression parsing, implementation	1300	x3751
41B	Martian Dollar brute force	1400	x4017
40B	Repaintings math	1600	x1165
40A	Find Color constructive algorithms, geometry, implementation, math	1300	x4021
39J	Spelling Check hashing, implementation, strings	1500	x2970
39H	Multiplication Table implementation	1300	x2739
39F	Pacifist frogs implementation	1300	x1554
39B	Company Income Growth greedy	1300	x2652
38E	Let's Go Rolling! dp, sortings	1800	x2575
38D	Vasya the Architect implementation	1900	x496
38C	Blinds brute force	1400	x2170
37C	Old Berland Language data structures, greedy, trees	1900	x1672
37B	Computer Game greedy, implementation	1800	x897
36B	Fractal implementation	1600	x1492
36A	Extra-terrestrial Intelligence implementation	1300	x3003
35D	Animals dp, greedy	1700	x3323
35C	Fire Again brute force, dfs and similar, shortest paths	1500	x6826
35B	Warehouse implementation	1700	x1016
34D	Road Map dfs and similar, graphs	1600	x5149
34C	Page Numbers expression parsing, implementation, sortings, strings	1300	x4222
33C	Wonderful Randomized Sum greedy	1800	x2992
33B	String Problem shortest paths	1800	x4539
32D	Constellation implementation	1600	x1277
32C	Flea math	1700	x2142
31C	Schedule implementation	1700	x1811
31B	Sysadmin Bob greedy, implementation, strings	1500	x4316
30C	Shooting Gallery dp, probabilities	1800	x1952
30B	Codeforces World Finals implementation	1700	x1198
30A	Accounting brute force, math	1400	x3457
29C	Mail Stamps data structures, dfs and similar, graphs, implementation	1700	x4907
29B	Traffic Lights implementation	1500	x2953
28B	pSort dfs and similar, dsu, graphs	1600	x4636
28A	Bender Problem implementation	1600	x799
27C	Unordered Subsequence constructive algorithms, greedy	1900	x2796
27B	Tournament bitmasks, brute force, dfs and similar, greedy	1300	x5353
26B	Regular Bracket Sequence greedy	1400	x19241
25D	Roads not only in Berland dsu, graphs, trees	1900	x11299
25C	Roads in Berland graphs, shortest paths	1900	x6256
25A	IQ test brute force	1300	x86022
24C	Sequence of points geometry, implementation, math	1800	x1254
24B	F1 Champions implementation	1500	x1779
24A	Ring road graphs	1400	x5103
23B	Party constructive algorithms, graphs, math	1600	x3341
22D	Segments greedy, sortings	1900	x2716
22C	System Administrator graphs	1700	x3102
22B	Bargaining Table brute force, dp	1500	x4219
21A	Jabber ID implementation, strings	1900	x1853
20C	Dijkstra? graphs, shortest paths	1900	x32680
20A	BerOS file system implementation	1700	x6185
19B	Checkout Assistant dp	1900	x4749
19A	World Football Cup implementation	1400	x2745
18B	Platforms brute force, math	1700	x2132
18A	Triangle brute force, geometry	1500	x6017
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x4749
16E	Fish bitmasks, dp, probabilities	1900	x5080
16D	Logging implementation, strings	1900	x1578
16C	Monitor binary search, number theory	1800	x4749
15B	Laser math	1800	x1463
14E	Camels dp	1900	x1703
14D	Two Paths dfs and similar, dp, graphs, shortest paths, trees, two pointers	1900	x4528
14C	Four Segments brute force, constructive algorithms, geometry, implementation, math	1700	x3373
11B	Jumping Jack math	1600	x4682
10B	Cinema Cashier dp, implementation	1500	x1775
9D	How many trees? combinatorics, divide and conquer, dp	1900	x3855
8B	Obsession with Robots constructive algorithms, graphs, implementation	1400	x4340
7C	Line math, number theory	1800	x4607
7B	Memory Manager implementation	1600	x2600
6E	Exposition binary search, data structures, dsu, trees, two pointers	1900	x3289
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x13784
4D	Mysterious Present dp, sortings	1700	x10273
4C	Registration System data structures, hashing, implementation	1300	x82956
3C	Tic-tac-toe brute force, games, implementation	1800	x7318
3B	Lorry greedy, sortings	1900	x4556
2A	Winner hashing, implementation	1500	x26322
1B	Spreadsheet implementation, math	1600	x22601

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