Problemset - Codeforces

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Codeforces Round (Div. 2)
7 days

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Problems

#	Name
39F	Pacifist frogs implementation	1300	x1543
39E	What Has Dirichlet Got to Do with That? dp, games	2000	x871
39D	Cubical Planet math	1100	x3910
39C	Moon Craters dp, sortings	2100	x598
39B	Company Income Growth greedy	1300	x2630
39A	C*++ Calculations expression parsing, greedy	2000	x675
38H	The Great Marathon dp	2400	x285
38G	Queue data structures	2300	x701
38F	Smart Boy dp, games, strings	2100	x385
38E	Let's Go Rolling! dp, sortings	1800	x2564
38D	Vasya the Architect implementation	1900	x490
38C	Blinds brute force	1400	x2150
38B	Chess brute force, implementation, math	1200	x3503
38A	Army implementation	800	x20968
37E	Trial for Chief graphs, greedy, shortest paths	2600	x614
37D	Lesson Timetable combinatorics, dp, math	2300	x408
37C	Old Berland Language data structures, greedy, trees	1900	x1654
37B	Computer Game greedy, implementation	1800	x888
37A	Towers sortings	1000	x24254
36E	Two Paths constructive algorithms, dsu, graphs, implementation	2600	x517
36D	New Game with a Chess Piece games	2300	x695
36C	Bowls geometry, implementation	2200	x337
36B	Fractal implementation	1600	x1475
36A	Extra-terrestrial Intelligence implementation	1300	x2979
35E	Parade data structures, sortings	2100	x727
35D	Animals dp, greedy	1700	x3278
35C	Fire Again brute force, dfs and similar, shortest paths	1500	x6734
35B	Warehouse implementation	1700	x1005
35A	Shell Game implementation	1000	x6778
34E	Collisions brute force, implementation, math	2000	x579
34D	Road Map dfs and similar, graphs	1600	x5068
34C	Page Numbers expression parsing, implementation, sortings, strings	1300	x4186
34B	Sale greedy, sortings	900	x51432
34A	Reconnaissance 2 implementation	800	x29549
33E	Helper	2600	x128
33D	Knights geometry, graphs, shortest paths, sortings	2000	x1191
33C	Wonderful Randomized Sum greedy	1800	x2975
33B	String Problem shortest paths	1800	x4436
33A	What is for dinner? greedy, implementation	1200	x4018
32E	Hide-and-Seek geometry, implementation	2400	x333
32D	Constellation implementation	1600	x1271
32C	Flea math	1700	x2124
32B	Borze expression parsing, implementation	800	x62690
32A	Reconnaissance brute force	800	x12400
31E	TV Game dp	2400	x1074
31D	Chocolate dfs and similar, implementation	2000	x1031
31C	Schedule implementation	1700	x1784
31B	Sysadmin Bob greedy, implementation, strings	1500	x4239
31A	Worms Evolution implementation	1200	x10227
30E	Tricky and Clever Password binary search, constructive algorithms, data structures, greedy, hashing, strings	2800	x730
30D	King's Problem? geometry, greedy	2600	x429
30C	Shooting Gallery dp, probabilities	1800	x1934
30B	Codeforces World Finals implementation	1700	x1178
30A	Accounting brute force, math	1400	x3437
29E	Quarrel graphs, shortest paths	2400	x895
29D	Ant on the Tree constructive algorithms, dfs and similar, trees	2000	x2437
29C	Mail Stamps data structures, dfs and similar, graphs, implementation	1700	x4844
29B	Traffic Lights implementation	1500	x2938
29A	Spit Problem brute force	1000	x7025
28E	DravDe saves the world geometry, math	2800	x90
28D	Don't fear, DravDe is kind binary search, data structures, dp, hashing	2400	x605
28C	Bath Queue combinatorics, dp, probabilities	2200	x1025
28B	pSort dfs and similar, dsu, graphs	1600	x4588
28A	Bender Problem implementation	1600	x790
27E	Number With The Given Amount Of Divisors brute force, dp, number theory	2000	x4159
27D	Ring Road 2 2-sat, dfs and similar, dsu, graphs	2200	x2483
27C	Unordered Subsequence constructive algorithms, greedy	1900	x2770
27B	Tournament bitmasks, brute force, dfs and similar, greedy	1300	x5322
27A	Next Test implementation, sortings	1200	x20030
26E	Multithreading constructive algorithms	2400	x371
26D	Tickets combinatorics, math, probabilities	2400	x777
26C	Parquet combinatorics, constructive algorithms, greedy, implementation	2000	x848
26B	Regular Bracket Sequence greedy	1400	x18882
26A	Almost Prime number theory	900	x30491
25E	Test hashing, strings	2200	x2410
25D	Roads not only in Berland dsu, graphs, trees	1900	x11052
25C	Roads in Berland graphs, shortest paths	1900	x6137
25B	Phone numbers implementation	1100	x9615
25A	IQ test brute force	1300	x85109
24E	Berland collider binary search	2300	x891
24D	Broken robot dp, math, probabilities	2400	x1914
24C	Sequence of points geometry, implementation, math	1800	x1248
24B	F1 Champions implementation	1500	x1771
24A	Ring road graphs	1400	x5032
23E	Tree dp	2500	x604
23D	Tetragon geometry, math	2600	x336
23C	Oranges and Apples constructive algorithms, sortings	2500	x1406
23B	Party constructive algorithms, graphs, math	1600	x3320
23A	You're Given a String... brute force, greedy	1200	x5252
22E	Scheme dfs and similar, graphs, trees	2300	x1606
22D	Segments greedy, sortings	1900	x2682
22C	System Administrator graphs	1700	x3069
22B	Bargaining Table brute force, dp	1500	x4190
22A	Second Order Statistics brute force	800	x21914
21D	Traveling Graph bitmasks, graph matchings, graphs	2400	x867
21C	Stripe 2 binary search, dp, sortings	2000	x2102
21B	Intersection implementation, math	2000	x1335
21A	Jabber ID implementation, strings	1900	x1833
20C	Dijkstra? graphs, shortest paths	1900	x32152
20B	Equation math	2000	x3820