Problemset - Codeforces

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Codeforces Round 973 (Div. 2)
37:09:59
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Problems

#	Name
22A	Second Order Statistics brute force	800	x21998
21D	Traveling Graph bitmasks, graph matchings, graphs	2400	x872
21C	Stripe 2 binary search, dp, sortings	2000	x2106
21B	Intersection implementation, math	2000	x1340
21A	Jabber ID implementation, strings	1900	x1845
20C	Dijkstra? graphs, shortest paths	1900	x32313
20B	Equation math	2000	x3845
20A	BerOS file system implementation	1700	x6163
19E	Fairy dfs and similar, divide and conquer, dsu	2900	x1815
19D	Points data structures	2800	x2340
19C	Deletion of Repeats greedy, hashing, string suffix structures	2200	x1084
19B	Checkout Assistant dp	1900	x4725
19A	World Football Cup implementation	1400	x2735
18E	Flag 2 dp	2000	x1073
18D	Seller Bob brute force, dp, greedy	2000	x1065
18C	Stripe data structures, implementation	1200	x13046
18B	Platforms brute force, math	1700	x2123
18A	Triangle brute force, geometry	1500	x5982
17E	Palisection strings	2900	x1576
17D	Notepad number theory	2400	x1072
17C	Balance dp	2500	x916
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x4726
17A	Noldbach problem brute force, math, number theory	1000	x16209
16E	Fish bitmasks, dp, probabilities	1900	x5051
16D	Logging implementation, strings	1900	x1562
16C	Monitor binary search, number theory	1800	x4715
16B	Burglar and Matches greedy, implementation, sortings	900	x17821
16A	Flag implementation	800	x14231
15E	Triangles combinatorics, dp	2600	x577
15D	Map data structures, implementation, sortings	2500	x757
15C	Industrial Nim games	2000	x2275
15B	Laser math	1800	x1456
15A	Cottage Village implementation, sortings	1200	x3903
14E	Camels dp	1900	x1691
14D	Two Paths dfs and similar, dp, graphs, shortest paths, trees, two pointers	1900	x4487
14C	Four Segments brute force, constructive algorithms, geometry, implementation, math	1700	x3331
14B	Young Photographer implementation	1000	x7049
14A	Letter implementation	800	x10562
13E	Holes data structures, dsu	2700	x5864
13D	Triangles dp, geometry	2600	x656
13C	Sequence dp, sortings	2200	x4562
13B	Letter A geometry, implementation	2000	x992
13A	Numbers implementation, math	1000	x7739
12E	Start of the session constructive algorithms	2100	x1207
12D	Ball data structures, sortings	2400	x2260
12C	Fruits greedy, implementation, sortings	1100	x6160
12B	Correct Solution? implementation, sortings	1100	x8473
12A	Super Agent implementation	800	x12987
11E	Forward, march! binary search, dp, greedy	2800	x361
11D	A Simple Task bitmasks, dp, graphs	2200	x4825
11C	How Many Squares? implementation	2200	x613
11B	Jumping Jack math	1600	x4663
11A	Increasing Sequence constructive algorithms, implementation, math	900	x13174
10E	Greedy Change constructive algorithms	2600	x831
10D	LCIS dp	2800	x4352
10C	Digital Root number theory	2000	x1436
10B	Cinema Cashier dp, implementation	1500	x1765
10A	Power Consumption Calculation implementation	900	x7104
9E	Interestring graph and Apples dfs and similar, dsu, graphs	2300	x1030
9D	How many trees? combinatorics, divide and conquer, dp	1900	x3843
9C	Hexadecimal's Numbers brute force, implementation, math	1200	x12892
9B	Running Student brute force, geometry, implementation	1200	x5490
9A	Die Roll math, probabilities	800	x56011
8E	Beads dp, graphs	2600	x685
8D	Two Friends binary search, geometry	2600	x521
8C	Looking for Order bitmasks, dp	2000	x3513
8B	Obsession with Robots constructive algorithms, graphs, implementation	1400	x4326
8A	Train and Peter strings	1200	x5811
7E	Defining Macros dp, expression parsing, implementation	2600	x708
7D	Palindrome Degree hashing, strings	2200	x3700
7C	Line math, number theory	1800	x4588
7B	Memory Manager implementation	1600	x2591
7A	Kalevitch and Chess brute force, constructive algorithms	1100	x7185
6E	Exposition binary search, data structures, dsu, trees, two pointers	1900	x3266
6D	Lizards and Basements 2 brute force, dp	2600	x1994
6C	Alice, Bob and Chocolate greedy, two pointers	1200	x13818
6B	President's Office implementation	1100	x12907
6A	Triangle brute force, geometry	900	x19723
5E	Bindian Signalizing data structures	2400	x2131
5D	Follow Traffic Rules implementation, math	2100	x1697
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x13649
5B	Center Alignment implementation, strings	1200	x5840
5A	Chat Servers Outgoing Traffic implementation	1000	x9659
4D	Mysterious Present dp, sortings	1700	x10235
4C	Registration System data structures, hashing, implementation	1300	x82324
4B	Before an Exam constructive algorithms, greedy	1200	x24712
4A	Watermelon brute force, math	800	x515253
3D	Least Cost Bracket Sequence greedy	2600	x3344
3C	Tic-tac-toe brute force, games, implementation	1800	x7287
3B	Lorry greedy, sortings	1900	x4542
3A	Shortest path of the king greedy, shortest paths	1000	x19117
2C	Commentator problem geometry	2600	x1749
2B	The least round way dp, math	2000	x10797
2A	Winner hashing, implementation	1500	x26191
1C	Ancient Berland Circus geometry, math	2100	x5671
1B	Spreadsheet implementation, math	1600	x22516
1A	Theatre Square math	1000	x258300

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