Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 954 (Div. 3)
3 days
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
23E	Tree dp	2500	x593
23D	Tetragon geometry, math	2600	x327
23C	Oranges and Apples constructive algorithms, sortings	2500	x1368
23B	Party constructive algorithms, graphs, math	1600	x3226
23A	You're Given a String... brute force, greedy	1200	x5120
22E	Scheme dfs and similar, graphs, trees	2300	x1562
22D	Segments greedy, sortings	1900	x2641
22C	System Administrator graphs	1700	x2978
22B	Bargaining Table brute force, dp	1500	x4109
22A	Second Order Statistics brute force	800	x21223
21D	Traveling Graph bitmasks, graph matchings, graphs	2400	x813
21C	Stripe 2 binary search, dp, sortings	2000	x2043
21B	Intersection implementation, math	2000	x1314
21A	Jabber ID implementation, strings	1900	x1798
20C	Dijkstra? graphs, shortest paths	1900	x30916
20B	Equation math	2000	x3708
20A	BerOS file system implementation	1700	x6010
19E	Fairy dfs and similar, divide and conquer, dsu	2900	x1656
19D	Points data structures	2800	x2183
19C	Deletion of Repeats greedy, hashing, string suffix structures	2200	x1057
19B	Checkout Assistant dp	1900	x4499
19A	World Football Cup implementation	1400	x2662
18E	Flag 2 dp	2000	x1028
18D	Seller Bob brute force, dp, greedy	2000	x1039
18C	Stripe data structures, implementation	1200	x12613
18B	Platforms brute force, math	1700	x2080
18A	Triangle brute force, geometry	1500	x5751
17E	Palisection strings	2900	x1520
17D	Notepad number theory	2400	x1043
17C	Balance dp	2500	x821
17B	Hierarchy dfs and similar, dsu, greedy, shortest paths	1500	x4550
17A	Noldbach problem brute force, math, number theory	1000	x15379
16E	Fish bitmasks, dp, probabilities	1900	x4763
16D	Logging implementation, strings	1900	x1523
16C	Monitor binary search, number theory	1800	x4576
16B	Burglar and Matches greedy, implementation, sortings	900	x17147
16A	Flag implementation	800	x13768
15E	Triangles combinatorics, dp	2600	x561
15D	Map data structures, implementation, sortings	2500	x728
15C	Industrial Nim games	2000	x2174
15B	Laser math	1800	x1331
15A	Cottage Village implementation, sortings	1200	x3677
14E	Camels dp	1900	x1625
14D	Two Paths dfs and similar, dp, graphs, shortest paths, trees, two pointers	1900	x4347
14C	Four Segments brute force, constructive algorithms, geometry, implementation, math	1700	x3272
14B	Young Photographer implementation	1000	x6878
14A	Letter implementation	800	x10288
13E	Holes data structures, dsu	2700	x5465
13D	Triangles dp, geometry	2600	x601
13C	Sequence dp, sortings	2200	x4334
13B	Letter A geometry, implementation	2000	x967
13A	Numbers implementation, math	1000	x7565
12E	Start of the session constructive algorithms	2100	x1171
12D	Ball data structures, sortings	2400	x2166
12C	Fruits greedy, implementation, sortings	1100	x5972
12B	Correct Solution? implementation, sortings	1100	x8277
12A	Super Agent implementation	800	x12628
11E	Forward, march! binary search, dp, greedy	2800	x350
11D	A Simple Task bitmasks, dp, graphs	2200	x4541
11C	How Many Squares? implementation	2200	x596
11B	Jumping Jack math	1600	x4528
11A	Increasing Sequence constructive algorithms, implementation, math	900	x12739
10E	Greedy Change constructive algorithms	2600	x810
10D	LCIS dp	2800	x4112
10C	Digital Root number theory	2000	x1408
10B	Cinema Cashier dp, implementation	1500	x1730
10A	Power Consumption Calculation implementation	900	x6928
9E	Interestring graph and Apples dfs and similar, dsu, graphs	2300	x997
9D	How many trees? combinatorics, divide and conquer, dp	1900	x3702
9C	Hexadecimal's Numbers brute force, implementation, math	1200	x12613
9B	Running Student brute force, geometry, implementation	1200	x5363
9A	Die Roll math, probabilities	800	x53588
8E	Beads dp, graphs	2600	x669
8D	Two Friends binary search, geometry	2600	x513
8C	Looking for Order bitmasks, dp	2000	x3402
8B	Obsession with Robots constructive algorithms, graphs, implementation	1400	x4238
8A	Train and Peter strings	1200	x5684
7E	Defining Macros dp, expression parsing, implementation	2600	x693
7D	Palindrome Degree hashing, strings	2200	x3545
7C	Line math, number theory	1800	x4418
7B	Memory Manager implementation	1600	x2533
7A	Kalevitch and Chess brute force, constructive algorithms	1100	x7043
6E	Exposition binary search, data structures, dsu, trees, two pointers	1900	x3163
6D	Lizards and Basements 2 brute force, dp	2600	x1955
6C	Alice, Bob and Chocolate greedy, two pointers	1200	x13298
6B	President's Office implementation	1100	x12414
6A	Triangle brute force, geometry	900	x19273
5E	Bindian Signalizing data structures	2400	x2025
5D	Follow Traffic Rules implementation, math	2100	x1656
5C	Longest Regular Bracket Sequence constructive algorithms, data structures, dp, greedy, sortings, strings	1900	x13026
5B	Center Alignment implementation, strings	1200	x5715
5A	Chat Servers Outgoing Traffic implementation	1000	x9470
4D	Mysterious Present dp, sortings	1700	x9920
4C	Registration System data structures, hashing, implementation	1300	x78799
4B	Before an Exam constructive algorithms, greedy	1200	x23985
4A	Watermelon brute force, math	800	x490769
3D	Least Cost Bracket Sequence greedy	2600	x3180
3C	Tic-tac-toe brute force, games, implementation	1800	x7089
3B	Lorry greedy, sortings	1900	x4410
3A	Shortest path of the king greedy, shortest paths	1000	x18712