Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 878 (Div. 3)
05:16:25
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
22A	Second Order Statistics brute force	800	x17566
21D	Traveling Graph bitmasks, graph matchings, graphs	2400	x696
21C	Stripe 2 binary search, dp, sortings	2000	x1771
21B	Intersection implementation, math	2000	x1202
21A	Jabber ID implementation, strings	1900	x1585
20C	Dijkstra? graphs, shortest paths	1900	x24186
20B	Equation math	2000	x3141
20A	BerOS file system implementation	1700	x5252
19E	Fairy dfs and similar, divide and conquer, dsu	2900	x1347
19D	Points data structures	2800	x1624
19C	Deletion of Repeats greedy, hashing, string suffix structures	2200	x968
19B	Checkout Assistant dp	1900	x3575
19A	World Football Cup implementation	1400	x2367
18E	Flag 2 dp	2000	x904
18D	Seller Bob brute force, dp, greedy	2000	x949
18C	Stripe data structures, implementation	1200	x10961
18B	Platforms brute force, math	1700	x1923
18A	Triangle brute force, geometry	1500	x5165
17E	Palisection strings	2900	x1279
17D	Notepad number theory	2400	x916
17C	Balance dp	2500	x735
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x3845
17A	Noldbach problem brute force, math, number theory	1000	x12617
16E	Fish bitmasks, dp, probabilities	1900	x3684
16D	Logging implementation, strings	1900	x1384
16C	Monitor binary search, number theory	1800	x4048
16B	Burglar and Matches greedy, implementation, sortings	900	x14540
16A	Flag implementation	800	x11711
15E	Triangles combinatorics, dp	2600	x509
15D	Map data structures, implementation, sortings	2500	x613
15C	Industrial Nim games	2000	x1942
15B	Laser math	1800	x1156
15A	Cottage Village implementation, sortings	1200	x3164
14E	Camels dp	1900	x1419
14D	Two Paths dfs and similar, dp, graphs, shortest paths, trees, two pointers	1900	x3801
14C	Four Segments brute force, constructive algorithms, geometry, implementation, math	1700	x2796
14B	Young Photographer implementation	1000	x5930
14A	Letter implementation	800	x8965
13E	Holes data structures, dsu	2700	x4281
13D	Triangles dp, geometry	2600	x548
13C	Sequence dp, sortings	2200	x3173
13B	Letter A geometry, implementation	2000	x730
13A	Numbers implementation, math	1000	x6512
12E	Start of the session constructive algorithms	2100	x1003
12D	Ball data structures, sortings	2400	x1719
12C	Fruits greedy, implementation, sortings	1100	x4980
12B	Correct Solution? implementation, sortings	1100	x7167
12A	Super Agent implementation	800	x9973
11E	Forward, march! binary search, dp, greedy	2800	x253
11D	A Simple Task bitmasks, dp, graphs	2200	x3543
11C	How Many Squares? implementation	2200	x547
11B	Jumping Jack math	1600	x3721
11A	Increasing Sequence constructive algorithms, implementation, math	900	x10633
10E	Greedy Change constructive algorithms	2600	x714
10D	LCIS dp	2800	x3239
10C	Digital Root number theory	2000	x1288
10B	Cinema Cashier dp, implementation	1500	x1566
10A	Power Consumption Calculation implementation	900	x5733
9E	Interestring graph and Apples dfs and similar, dsu, graphs	2300	x894
9D	How many trees? combinatorics, divide and conquer, dp	1900	x3190
9C	Hexadecimal's Numbers brute force, implementation, math	1200	x11315
9B	Running Student brute force, geometry, implementation	1200	x4722
9A	Die Roll math, probabilities	800	x42261
8E	Beads dp, graphs	2600	x608
8D	Two Friends binary search, geometry	2600	x487
8C	Looking for Order bitmasks, dp	2000	x2823
8B	Obsession with Robots constructive algorithms, graphs, implementation	1400	x3685
8A	Train and Peter strings	1200	x4940
7E	Defining Macros dp, expression parsing, implementation	2600	x638
7D	Palindrome Degree hashing, strings	2200	x3056
7C	Line math, number theory	1800	x3674
7B	Memory Manager implementation	1600	x2126
7A	Kalevitch and Chess brute force, constructive algorithms	1100	x6240
6E	Exposition binary search, data structures, dsu, trees, two pointers	1900	x2620
6D	Lizards and Basements 2 brute force, dp	2600	x1583
6C	Alice, Bob and Chocolate greedy, two pointers	1200	x10982
6B	President's Office implementation	1100	x10594
6A	Triangle brute force, geometry	900	x15806
5E	Bindian Signalizing data structures	2400	x1734
5D	Follow Traffic Rules implementation, math	2100	x1336
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x10715
5B	Center Alignment implementation, strings	1200	x5014
5A	Chat Servers Outgoing Traffic implementation	1000	x8307
4D	Mysterious Present dp, sortings	1700	x8717
4C	Registration System data structures, hashing, implementation	1300	x63402
4B	Before an Exam constructive algorithms, greedy	1200	x20425
4A	Watermelon brute force, math	800	x392691
3D	Least Cost Bracket Sequence greedy	2600	x2583
3C	Tic-tac-toe brute force, games, implementation	1800	x6226
3B	Lorry greedy, sortings	1900	x3740
3A	Shortest path of the king greedy, shortest paths	1000	x16372
2C	Commentator problem geometry	2600	x1380
2B	The least round way dp, math	2000	x9087
2A	Winner hashing, implementation	1500	x21294
1C	Ancient Berland Circus geometry, math	2100	x4940
1B	Spreadsheet implementation, math	1600	x19331
1A	Theatre Square math	1000	x209585

→