Problemset - Codeforces

→ Pay attention

Before contest
Helvetic Coding Contest 2024 online mirror (teams allowed, unrated)
19:23:46
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
39E	What Has Dirichlet Got to Do with That? dp, games	2000	x852
39D	Cubical Planet math	1100	x3738
39C	Moon Craters dp, sortings	2100	x568
39B	Company Income Growth greedy	1300	x2558
39A	C*++ Calculations expression parsing, greedy	2000	x656
38H	The Great Marathon dp	2400	x263
38G	Queue data structures	2300	x673
38F	Smart Boy dp, games, strings	2100	x374
38E	Let's Go Rolling! dp, sortings	1800	x2483
38D	Vasya the Architect implementation	1900	x472
38C	Blinds brute force	1400	x2081
38B	Chess brute force, implementation, math	1200	x3386
38A	Army implementation	800	x20511
37E	Trial for Chief graphs, greedy, shortest paths	2600	x578
37D	Lesson Timetable combinatorics, dp, math	2300	x388
37C	Old Berland Language data structures, greedy, trees	1900	x1496
37B	Computer Game greedy, implementation	1800	x861
37A	Towers sortings	1000	x23548
36E	Two Paths constructive algorithms, dsu, graphs, implementation	2600	x495
36D	New Game with a Chess Piece games	2300	x675
36C	Bowls geometry, implementation	2200	x296
36B	Fractal implementation	1600	x1417
36A	Extra-terrestrial Intelligence implementation	1300	x2894
35E	Parade data structures, sortings	2100	x701
35D	Animals dp, greedy	1700	x3144
35C	Fire Again brute force, dfs and similar, shortest paths	1500	x6243
35B	Warehouse implementation	1700	x988
35A	Shell Game implementation	1000	x6612
34E	Collisions brute force, implementation, math	2000	x563
34D	Road Map dfs and similar, graphs	1600	x4850
34C	Page Numbers expression parsing, implementation, sortings, strings	1300	x4068
34B	Sale greedy, sortings	900	x48550
34A	Reconnaissance 2 implementation	800	x28428
33E	Helper	2600	x121
33D	Knights geometry, graphs, shortest paths, sortings	2000	x1128
33C	Wonderful Randomized Sum greedy	1800	x2847
33B	String Problem shortest paths	1800	x4072
33A	What is for dinner? greedy, implementation	1200	x3844
32E	Hide-and-Seek geometry, implementation	2400	x321
32D	Constellation implementation	1600	x1237
32C	Flea math	1700	x2051
32B	Borze expression parsing, implementation	800	x58578
32A	Reconnaissance brute force	800	x11974
31E	TV Game dp	2400	x1018
31D	Chocolate dfs and similar, implementation	2000	x988
31C	Schedule implementation	1700	x1720
31B	Sysadmin Bob greedy, implementation, strings	1500	x4100
31A	Worms Evolution implementation	1200	x9913
30E	Tricky and Clever Password binary search, constructive algorithms, data structures, greedy, hashing, strings	2800	x673
30D	King's Problem? geometry, greedy	2600	x409
30C	Shooting Gallery dp, probabilities	1800	x1849
30B	Codeforces World Finals implementation	1700	x1149
30A	Accounting brute force, math	1400	x3310
29E	Quarrel graphs, shortest paths	2400	x859
29D	Ant on the Tree constructive algorithms, dfs and similar, trees	2000	x2299
29C	Mail Stamps data structures, dfs and similar, graphs, implementation	1700	x4548
29B	Traffic Lights implementation	1500	x2825
29A	Spit Problem brute force	1000	x6817
28E	DravDe saves the world geometry, math	2800	x85
28D	Don't fear, DravDe is kind binary search, data structures, dp, hashing	2400	x582
28C	Bath Queue combinatorics, dp, probabilities	2200	x981
28B	pSort dfs and similar, dsu, graphs	1600	x4398
28A	Bender Problem implementation	1600	x769
27E	Number With The Given Amount Of Divisors brute force, dp, number theory	2000	x3986
27D	Ring Road 2 2-sat, dfs and similar, dsu, graphs	2200	x2358
27C	Unordered Subsequence constructive algorithms, greedy	1900	x2686
27B	Tournament bitmasks, brute force, dfs and similar, greedy	1300	x5135
27A	Next Test implementation, sortings	1200	x19285
26E	Multithreading constructive algorithms	2400	x362
26D	Tickets combinatorics, math, probabilities	2400	x745
26C	Parquet combinatorics, constructive algorithms, greedy, implementation	2000	x820
26B	Regular Bracket Sequence greedy	1400	x17450
26A	Almost Prime number theory	900	x28475
25E	Test hashing, strings	2200	x2168
25D	Roads not only in Berland dsu, graphs, trees	1900	x10327
25C	Roads in Berland graphs, shortest paths	1900	x5848
25B	Phone numbers implementation	1100	x9281
25A	IQ test brute force	1300	x80977
24E	Berland collider binary search	2300	x855
24D	Broken robot dp, math, probabilities	2400	x1789
24C	Sequence of points geometry, implementation, math	1800	x1213
24B	F1 Champions implementation	1500	x1709
24A	Ring road graphs	1400	x4758
23E	Tree dp	2500	x588
23D	Tetragon geometry, math	2600	x325
23C	Oranges and Apples constructive algorithms, sortings	2500	x1355
23B	Party constructive algorithms, graphs, math	1600	x3195
23A	You're Given a String... brute force, greedy	1200	x5072
22E	Scheme dfs and similar, graphs, trees	2300	x1538
22D	Segments greedy, sortings	1900	x2610
22C	System Administrator graphs	1700	x2940
22B	Bargaining Table brute force, dp	1500	x4071
22A	Second Order Statistics brute force	800	x20831
21D	Traveling Graph bitmasks, graph matchings, graphs	2400	x792
21C	Stripe 2 binary search, dp, sortings	2000	x2012
21B	Intersection implementation, math	2000	x1298
21A	Jabber ID implementation, strings	1900	x1770
20C	Dijkstra? graphs, shortest paths	1900	x29802
20B	Equation math	2000	x3643
20A	BerOS file system implementation	1700	x5931