Problemset - Codeforces

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Problems

#	Name
24D	Broken robot dp, math, probabilities	2400	x1794
24C	Sequence of points geometry, implementation, math	1800	x1214
24B	F1 Champions implementation	1500	x1711
24A	Ring road graphs	1400	x4766
23E	Tree dp	2500	x588
23D	Tetragon geometry, math	2600	x325
23C	Oranges and Apples constructive algorithms, sortings	2500	x1357
23B	Party constructive algorithms, graphs, math	1600	x3197
23A	You're Given a String... brute force, greedy	1200	x5073
22E	Scheme dfs and similar, graphs, trees	2300	x1540
22D	Segments greedy, sortings	1900	x2613
22C	System Administrator graphs	1700	x2945
22B	Bargaining Table brute force, dp	1500	x4075
22A	Second Order Statistics brute force	800	x20870
21D	Traveling Graph bitmasks, graph matchings, graphs	2400	x796
21C	Stripe 2 binary search, dp, sortings	2000	x2014
21B	Intersection implementation, math	2000	x1300
21A	Jabber ID implementation, strings	1900	x1780
20C	Dijkstra? graphs, shortest paths	1900	x29848
20B	Equation math	2000	x3646
20A	BerOS file system implementation	1700	x5942
19E	Fairy dfs and similar, divide and conquer, dsu	2900	x1611
19D	Points data structures	2800	x2106
19C	Deletion of Repeats greedy, hashing, string suffix structures	2200	x1045
19B	Checkout Assistant dp	1900	x4413
19A	World Football Cup implementation	1400	x2579
18E	Flag 2 dp	2000	x1022
18D	Seller Bob brute force, dp, greedy	2000	x1030
18C	Stripe data structures, implementation	1200	x12452
18B	Platforms brute force, math	1700	x2061
18A	Triangle brute force, geometry	1500	x5696
17E	Palisection strings	2900	x1506
17D	Notepad number theory	2400	x1037
17C	Balance dp	2500	x815
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x4470
17A	Noldbach problem brute force, math, number theory	1000	x15066
16E	Fish bitmasks, dp, probabilities	1900	x4640
16D	Logging implementation, strings	1900	x1512
16C	Monitor binary search, number theory	1800	x4499
16B	Burglar and Matches greedy, implementation, sortings	900	x16871
16A	Flag implementation	800	x13576
15E	Triangles combinatorics, dp	2600	x556
15D	Map data structures, implementation, sortings	2500	x715
15C	Industrial Nim games	2000	x2158
15B	Laser math	1800	x1288
15A	Cottage Village implementation, sortings	1200	x3603
14E	Camels dp	1900	x1618
14D	Two Paths dfs and similar, dp, graphs, shortest paths, trees, two pointers	1900	x4309
14C	Four Segments brute force, constructive algorithms, geometry, implementation, math	1700	x3092
14B	Young Photographer implementation	1000	x6669
14A	Letter implementation	800	x10059
13E	Holes data structures, dsu	2700	x5358
13D	Triangles dp, geometry	2600	x594
13C	Sequence dp, sortings	2200	x4116
13B	Letter A geometry, implementation	2000	x834
13A	Numbers implementation, math	1000	x7362
12E	Start of the session constructive algorithms	2100	x1161
12D	Ball data structures, sortings	2400	x2005
12C	Fruits greedy, implementation, sortings	1100	x5765
12B	Correct Solution? implementation, sortings	1100	x8005
12A	Super Agent implementation	800	x12386
11E	Forward, march! binary search, dp, greedy	2800	x344
11D	A Simple Task bitmasks, dp, graphs	2200	x4450
11C	How Many Squares? implementation	2200	x588
11B	Jumping Jack math	1600	x4320
11A	Increasing Sequence constructive algorithms, implementation, math	900	x12416
10E	Greedy Change constructive algorithms	2600	x802
10D	LCIS dp	2800	x4046
10C	Digital Root number theory	2000	x1391
10B	Cinema Cashier dp, implementation	1500	x1714
10A	Power Consumption Calculation implementation	900	x6676
9E	Interestring graph and Apples dfs and similar, dsu, graphs	2300	x987
9D	How many trees? combinatorics, divide and conquer, dp	1900	x3667
9C	Hexadecimal's Numbers brute force, implementation, math	1200	x12369
9B	Running Student brute force, geometry, implementation	1200	x5199
9A	Die Roll math, probabilities	800	x52525
8E	Beads dp, graphs	2600	x666
8D	Two Friends binary search, geometry	2600	x509
8C	Looking for Order bitmasks, dp	2000	x3247
8B	Obsession with Robots constructive algorithms, graphs, implementation	1400	x4074
8A	Train and Peter strings	1200	x5497
7E	Defining Macros dp, expression parsing, implementation	2600	x688
7D	Palindrome Degree hashing, strings	2200	x3511
7C	Line math, number theory	1800	x4235
7B	Memory Manager implementation	1600	x2370
7A	Kalevitch and Chess brute force, constructive algorithms	1100	x6851
6E	Exposition binary search, data structures, dsu, trees, two pointers	1900	x3000
6D	Lizards and Basements 2 brute force, dp	2600	x1811
6C	Alice, Bob and Chocolate greedy, two pointers	1200	x13005
6B	President's Office implementation	1100	x12133
6A	Triangle brute force, geometry	900	x19073
5E	Bindian Signalizing data structures	2400	x2007
5D	Follow Traffic Rules implementation, math	2100	x1519
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x12660
5B	Center Alignment implementation, strings	1200	x5535
5A	Chat Servers Outgoing Traffic implementation	1000	x9249
4D	Mysterious Present dp, sortings	1700	x9675
4C	Registration System data structures, hashing, implementation	1300	x77187
4B	Before an Exam constructive algorithms, greedy	1200	x23634
4A	Watermelon brute force, math	800	x481620