Problemset - Codeforces

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Educational Codeforces Round 167 (Rated for Div. 2)
23:06:07
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Problems

#	Name
38G	Queue data structures	2300	x685
38F	Smart Boy dp, games, strings	2100	x379
38E	Let's Go Rolling! dp, sortings	1800	x2516
38D	Vasya the Architect implementation	1900	x479
38C	Blinds brute force	1400	x2101
37E	Trial for Chief graphs, greedy, shortest paths	2600	x597
37D	Lesson Timetable combinatorics, dp, math	2300	x390
37C	Old Berland Language data structures, greedy, trees	1900	x1577
37B	Computer Game greedy, implementation	1800	x872
36E	Two Paths constructive algorithms, dsu, graphs, implementation	2600	x500
36D	New Game with a Chess Piece games	2300	x681
36C	Bowls geometry, implementation	2200	x330
36B	Fractal implementation	1600	x1443
35E	Parade data structures, sortings	2100	x707
35D	Animals dp, greedy	1700	x3196
35C	Fire Again brute force, dfs and similar, shortest paths	1500	x6540
35B	Warehouse implementation	1700	x995
34E	Collisions brute force, implementation, math	2000	x568
34D	Road Map dfs and similar, graphs	1600	x4907
33E	Helper	2600	x125
33D	Knights geometry, graphs, shortest paths, sortings	2000	x1147
33C	Wonderful Randomized Sum greedy	1800	x2896
33B	String Problem shortest paths	1800	x4265
32E	Hide-and-Seek geometry, implementation	2400	x324
32D	Constellation implementation	1600	x1249
32C	Flea math	1700	x2084
31E	TV Game dp	2400	x1039
31D	Chocolate dfs and similar, implementation	2000	x1002
31C	Schedule implementation	1700	x1748
31B	Sysadmin Bob greedy, implementation, strings	1500	x4152
30E	Tricky and Clever Password binary search, constructive algorithms, data structures, greedy, hashing, strings	2800	x688
30D	King's Problem? geometry, greedy	2600	x414
30C	Shooting Gallery dp, probabilities	1800	x1877
30B	Codeforces World Finals implementation	1700	x1157
30A	Accounting brute force, math	1400	x3353
29E	Quarrel graphs, shortest paths	2400	x873
29D	Ant on the Tree constructive algorithms, dfs and similar, trees	2000	x2355
29C	Mail Stamps data structures, dfs and similar, graphs, implementation	1700	x4647
29B	Traffic Lights implementation	1500	x2863
28E	DravDe saves the world geometry, math	2800	x87
28D	Don't fear, DravDe is kind binary search, data structures, dp, hashing	2400	x591
28C	Bath Queue combinatorics, dp, probabilities	2200	x998
28B	pSort dfs and similar, dsu, graphs	1600	x4457
28A	Bender Problem implementation	1600	x774
27E	Number With The Given Amount Of Divisors brute force, dp, number theory	2000	x4030
27D	Ring Road 2 2-sat, dfs and similar, dsu, graphs	2200	x2389
27C	Unordered Subsequence constructive algorithms, greedy	1900	x2708
26E	Multithreading constructive algorithms	2400	x368
26D	Tickets combinatorics, math, probabilities	2400	x764
26C	Parquet combinatorics, constructive algorithms, greedy, implementation	2000	x827
26B	Regular Bracket Sequence greedy	1400	x17943
25E	Test hashing, strings	2200	x2263
25D	Roads not only in Berland dsu, graphs, trees	1900	x10639
25C	Roads in Berland graphs, shortest paths	1900	x5958
24E	Berland collider binary search	2300	x870
24D	Broken robot dp, math, probabilities	2400	x1818
24C	Sequence of points geometry, implementation, math	1800	x1220
24B	F1 Champions implementation	1500	x1734
24A	Ring road graphs	1400	x4888
23E	Tree dp	2500	x593
23D	Tetragon geometry, math	2600	x328
23C	Oranges and Apples constructive algorithms, sortings	2500	x1369
23B	Party constructive algorithms, graphs, math	1600	x3234
22E	Scheme dfs and similar, graphs, trees	2300	x1565
22D	Segments greedy, sortings	1900	x2644
22C	System Administrator graphs	1700	x2996
22B	Bargaining Table brute force, dp	1500	x4114
21D	Traveling Graph bitmasks, graph matchings, graphs	2400	x816
21C	Stripe 2 binary search, dp, sortings	2000	x2053
21B	Intersection implementation, math	2000	x1318
21A	Jabber ID implementation, strings	1900	x1799
20C	Dijkstra? graphs, shortest paths	1900	x31021
20B	Equation math	2000	x3724
20A	BerOS file system implementation	1700	x6026
19E	Fairy dfs and similar, divide and conquer, dsu	2900	x1666
19D	Points data structures	2800	x2187
19C	Deletion of Repeats greedy, hashing, string suffix structures	2200	x1061
19B	Checkout Assistant dp	1900	x4509
19A	World Football Cup implementation	1400	x2671
18E	Flag 2 dp	2000	x1031
18D	Seller Bob brute force, dp, greedy	2000	x1042
18B	Platforms brute force, math	1700	x2082
18A	Triangle brute force, geometry	1500	x5760
17E	Palisection strings	2900	x1521
17D	Notepad number theory	2400	x1044
17C	Balance dp	2500	x823
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x4568
16E	Fish bitmasks, dp, probabilities	1900	x4775
16D	Logging implementation, strings	1900	x1525
16C	Monitor binary search, number theory	1800	x4593
15E	Triangles combinatorics, dp	2600	x561
15D	Map data structures, implementation, sortings	2500	x728
15C	Industrial Nim games	2000	x2176
15B	Laser math	1800	x1429
14E	Camels dp	1900	x1625
14D	Two Paths dfs and similar, dp, graphs, shortest paths, trees, two pointers	1900	x4360
14C	Four Segments brute force, constructive algorithms, geometry, implementation, math	1700	x3275
13E	Holes data structures, dsu	2700	x5490
13D	Triangles dp, geometry	2600	x601
13C	Sequence dp, sortings	2200	x4341