Problemset - Codeforces

→ Pay attention

Before contest
CodeTON Round 9 (Div. 1 + Div. 2, Rated, Prizes!)
3 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

data structures

Add tag

Problems

#	Name
319B	Psychos in a Line data structures, implementation	1900	x4029
316E3	Summer Homework data structures, math	2300	x505
316E2	Summer Homework data structures, math	2300	x380
316E1	Summer Homework brute force, data structures	1500	x1447
314D	Sereja and Straight Lines binary search, data structures, geometry, sortings, two pointers	2500	x515
314C	Sereja and Subsequences data structures, dp	2000	x1767
313E	Ilya and Two Numbers constructive algorithms, data structures, dsu, greedy	2300	x541
311D	Interval Cubing data structures, math	2600	x659
311C	Fetch the Treasure brute force, data structures, graphs, shortest paths	2500	x475
311B	Cats Transport data structures, dp	2400	x3234
306B	Optimizer data structures, greedy, sortings	2100	x437
301D	Yaroslav and Divisors data structures	2200	x2216
297E	Mystic Carvings data structures	3000	x353
295E	Yaroslav and Points data structures	2500	x649
295A	Greg and Array data structures, implementation	1400	x16127
293E	Close Vertices data structures, divide and conquer, trees	2700	x1271
292E	Copying Data data structures	1900	x3923
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2315
286D	Tourists data structures, sortings	2600	x371
283E	Cow Tennis Tournament combinatorics, data structures, math	2800	x718
283A	Cows and Sequence constructive algorithms, data structures, implementation	1600	x6487
282E	Sausage Maximization bitmasks, data structures, trees	2200	x3370
280E	Sequence Transformation brute force, data structures, dp, implementation, math	3000	x198
280D	k-Maximum Subsequence Sum data structures, flows, graphs, implementation	2800	x1193
280B	Maximum Xor Secondary data structures, implementation, two pointers	1800	x4379
276E	Little Girl and Problem on Trees data structures, graphs, trees	2100	x1549
276C	Little Girl and Maximum Sum data structures, greedy, implementation, sortings	1500	x24137
274E	Mirror Room data structures, implementation	3000	x302
272C	Dima and Staircase data structures, implementation	1500	x6689
271D	Good Substrings data structures, strings	1800	x10360
270B	Multithreading data structures, greedy, implementation	1400	x4084
269D	Maximum Waterfall data structures, dp, graphs, sortings	2600	x424
266E	More Queries to Array... data structures, math	2500	x720
264E	Roadside Trees data structures, dp	3000	x396
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x10615
263E	Rhombus brute force, data structures, dp	2500	x394
260E	Dividing Kingdom binary search, brute force, data structures	2500	x416
258E	Little Elephant and Tree data structures, dfs and similar, trees	2400	x1033
257E	Greedy Elevator data structures, implementation	2200	x275
256E	Lucky Arrays data structures	2400	x655
253E	Printer binary search, data structures, implementation, sortings	2200	x522
253C	Text Editor data structures, dfs and similar, graphs, greedy, shortest paths	1600	x2527
249D	Donkey and Stars data structures, dp, geometry, math, sortings	2700	x394
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x2980
243E	Matrix data structures	3000	x171
243D	Cubes data structures, dp, geometry, two pointers	2700	x208
242E	XOR on Segment bitmasks, data structures	2000	x8474
241B	Friends binary search, bitmasks, data structures, math	2700	x751
240F	TorCoder data structures	2600	x1796
238D	Tape Programming data structures, implementation	2900	x244
235C	Cyclical Quest data structures, string suffix structures, strings	2700	x2018
232D	Fence binary search, data structures, string suffix structures	2900	x441
231E	Cactus data structures, dfs and similar, dp, graphs, trees	2100	x1549
229B	Planets binary search, data structures, graphs, shortest paths	1700	x4474
228D	Zigzag data structures	2100	x374
226E	Noble Knight's Path data structures, trees	2900	x433
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x844
223B	Two Strings data structures, dp, strings	1900	x1722
223A	Bracket Sequence data structures, expression parsing, implementation	1700	x2483
222B	Cosmic Tables data structures, implementation	1300	x5986
220E	Little Elephant and Inversions data structures, two pointers	2400	x1335
220C	Little Elephant and Shifts data structures	2100	x925
220B	Little Elephant and Array constructive algorithms, data structures	1800	x9456
219E	Parking Lot data structures	2200	x603
217E	Alien DNA data structures, dsu, trees	2800	x291
213E	Two Permutations data structures, hashing, strings	2700	x770
212D	Cutting a Fence binary search, data structures, dsu	2500	x451
208E	Blood Cousins binary search, data structures, dfs and similar, trees	2100	x6129
207C3	Game with Two Trees data structures	2700	x118
204E	Little Elephant and Strings data structures, implementation, string suffix structures, two pointers	2800	x1095
204B	Little Elephant and Cards binary search, data structures	1500	x5032
200A	Cinema brute force, data structures	2400	x660
198E	Gripping Story binary search, data structures, sortings	2400	x403
196D	The Next Good String data structures, greedy, hashing, strings	2800	x521
195E	Building Forest data structures, dsu, graphs	2000	x688
195B	After Training data structures, implementation, math	1300	x5125
193D	Two Segments data structures	2900	x388
191E	Thwarting Demonstrations binary search, data structures, trees	2200	x806
191C	Fools and Roads data structures, dfs and similar, trees	1900	x6757
190E	Counter Attack data structures, dsu, graphs, hashing, sortings	2100	x1441
187E	Heaven Tour data structures, greedy	2900	x93
187D	BRT Contract data structures	2800	x501
185E	Soap Time! - 2 binary search, data structures	3000	x103
182C	Optimal Sum data structures, greedy	2000	x709
177D2	Encrypting Messages data structures	1500	x1784
176E	Archaeology data structures, dfs and similar, trees	3100	x1030
175F	Gnomes of Might and Magic data structures, graphs, implementation, shortest paths	3000	x64
174C	Range Increments data structures, greedy	1800	x1069
173E	Camping Groups data structures, sortings	2600	x535
167D	Wizards and Roads data structures, divide and conquer, graph matchings, graphs, greedy	3000	x190
165D	Beard Graph data structures, dsu, trees	2100	x1589
163E	e-Government data structures, dfs and similar, dp, strings, trees	2800	x1529
160E	Buses and People binary search, data structures, sortings	2400	x576
159E	Zebra Tower *special problem, data structures, greedy, sortings	1700	x989
159C	String Manipulation 1.0 *special problem, binary search, brute force, data structures, strings	1400	x2921
158C	Cd and pwd commands *special problem, data structures, implementation	1400	x8906
156B	Suspects constructive algorithms, data structures, implementation	1600	x2189
150E	Freezing with Style binary search, data structures, divide and conquer, trees	3000	x790
150C	Smart Cheater data structures, math, probabilities	2200	x630
145E	Lucky Queries data structures	2400	x2951