Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round (Div. 3)
5 days

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
39H	Multiplication Table implementation	1300	x2820
39G	Inverse Function implementation	2400	x134
39F	Pacifist frogs implementation	1300	x1619
39E	What Has Dirichlet Got to Do with That? dp, games	2000	x897
39D	Cubical Planet math	1100	x4100
39C	Moon Craters dp, sortings	2100	x625
39B	Company Income Growth greedy	1300	x2743
39A	C*++ Calculations expression parsing, greedy	2000	x721
38H	The Great Marathon dp	2400	x320
38G	Queue data structures	2300	x719
38F	Smart Boy dp, games, strings	2100	x401
38E	Let's Go Rolling! dp, sortings	1800	x2650
38D	Vasya the Architect implementation	1900	x556
38C	Blinds brute force	1400	x2298
38B	Chess brute force, implementation, math	1200	x3639
38A	Army implementation	800	x22137
37E	Trial for Chief graphs, greedy, shortest paths	2600	x634
37D	Lesson Timetable combinatorics, dp, math	2300	x428
37C	Old Berland Language data structures, greedy, trees	1900	x1762
37B	Computer Game greedy, implementation	1800	x978
37A	Towers sortings	1000	x25185
36E	Two Paths constructive algorithms, dsu, graphs, implementation	2600	x549
36D	New Game with a Chess Piece games	2300	x722
36C	Bowls geometry, implementation	2200	x342
36B	Fractal implementation	1600	x1560
36A	Extra-terrestrial Intelligence implementation	1300	x3077
35E	Parade data structures, sortings	2100	x768
35D	Animals dp, greedy	1700	x3461
35C	Fire Again brute force, dfs and similar, shortest paths	1500	x7163
35B	Warehouse implementation	1700	x1035
35A	Shell Game implementation	1000	x6920
34E	Collisions brute force, implementation, math	2000	x599
34D	Road Map dfs and similar, graphs	1600	x5371
34C	Page Numbers expression parsing, implementation, sortings, strings	1300	x4341
34B	Sale greedy, sortings	900	x55531
34A	Reconnaissance 2 implementation	800	x31120
33E	Helper	2600	x135
33D	Knights geometry, graphs, shortest paths, sortings	2000	x1253
33C	Wonderful Randomized Sum greedy	1800	x3095
33B	String Problem shortest paths	1800	x4743
33A	What is for dinner? greedy, implementation	1200	x4237
32E	Hide-and-Seek geometry, implementation	2400	x351
32D	Constellation implementation	1600	x1318
32C	Flea math	1700	x2222
32B	Borze expression parsing, implementation	800	x67614
32A	Reconnaissance brute force	800	x13093
31E	TV Game dp	2400	x1129
31D	Chocolate dfs and similar, implementation	2000	x1059
31C	Schedule implementation	1700	x1851
31B	Sysadmin Bob greedy, implementation, strings	1500	x4397
31A	Worms Evolution implementation	1200	x10596
30E	Tricky and Clever Password binary search, constructive algorithms, data structures, greedy, hashing, strings	2800	x757
30D	King's Problem? geometry, greedy	2600	x463
30C	Shooting Gallery dp, probabilities	1800	x2014
30B	Codeforces World Finals implementation	1700	x1219
30A	Accounting brute force, math	1400	x3562
29E	Quarrel graphs, shortest paths	2400	x954
29D	Ant on the Tree constructive algorithms, dfs and similar, trees	2000	x2531
29C	Mail Stamps data structures, dfs and similar, graphs, implementation	1700	x5216
29B	Traffic Lights implementation	1500	x3029
29A	Spit Problem brute force	1000	x7310
28E	DravDe saves the world geometry, math	2800	x95
28D	Don't fear, DravDe is kind binary search, data structures, dp, hashing	2400	x623
28C	Bath Queue combinatorics, dp, probabilities	2200	x1077
28B	pSort dfs and similar, dsu, graphs	1600	x4818
28A	Bender Problem implementation	1600	x816
27E	Number With The Given Amount Of Divisors brute force, dp, number theory	2000	x4373
27D	Ring Road 2 2-sat, dfs and similar, dsu, graphs	2200	x2672
27C	Unordered Subsequence constructive algorithms, greedy	1900	x2842
27B	Tournament bitmasks, brute force, dfs and similar, greedy	1300	x5461
27A	Next Test implementation, sortings	1200	x20924
26E	Multithreading constructive algorithms	2400	x384
26D	Tickets combinatorics, math, probabilities	2400	x816
26C	Parquet combinatorics, constructive algorithms, greedy, implementation	2000	x878
26B	Regular Bracket Sequence greedy	1400	x20560
26A	Almost Prime number theory	900	x33626
25E	Test hashing, strings	2200	x2604
25D	Roads not only in Berland dsu, graphs, trees	1900	x12046
25C	Roads in Berland graphs, shortest paths	1900	x6586
25B	Phone numbers implementation	1100	x9977
25A	IQ test brute force	1300	x90399
24E	Berland collider binary search	2300	x922
24D	Broken robot dp, math, probabilities	2400	x2139
24C	Sequence of points geometry, implementation, math	1800	x1274
24B	F1 Champions implementation	1500	x1823
24A	Ring road graphs	1400	x5462
23E	Tree dp	2500	x646
23D	Tetragon geometry, math	2600	x342
23C	Oranges and Apples constructive algorithms, sortings	2500	x1496
23B	Party constructive algorithms, graphs, math	1600	x3445
23A	You're Given a String... brute force, greedy	1200	x5539
22E	Scheme dfs and similar, graphs, trees	2300	x1755
22D	Segments greedy, sortings	1900	x2824
22C	System Administrator graphs	1700	x3256
22B	Bargaining Table brute force, dp	1500	x4308
22A	Second Order Statistics brute force	800	x23360
21D	Traveling Graph bitmasks, graph matchings, graphs	2400	x943
21C	Stripe 2 binary search, dp, sortings	2000	x2197
21B	Intersection implementation, math	2000	x1390
21A	Jabber ID implementation, strings	1900	x1905