Problemset - Codeforces

→ Pay attention

Before contest
Helvetic Coding Contest 2024 online mirror (teams allowed, unrated)
23:08:52
Register now »

→ Filter Problems

Difficulty: —

data structures

Add tag

Problems

#	Name
313E	Ilya and Two Numbers constructive algorithms, data structures, dsu, greedy	2300	x540
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	x3192
306B	Optimizer data structures, greedy, sortings	2100	x437
301D	Yaroslav and Divisors data structures	2200	x2198
297E	Mystic Carvings data structures	3000	x353
295E	Yaroslav and Points data structures	2500	x646
295A	Greg and Array data structures, implementation	1400	x16027
293E	Close Vertices data structures, divide and conquer, trees	2700	x1267
292E	Copying Data data structures	1900	x3904
292D	Connected Components data structures, dfs and similar, dp, dsu	1900	x2310
286D	Tourists data structures, sortings	2600	x371
283E	Cow Tennis Tournament combinatorics, data structures, math	2800	x716
283A	Cows and Sequence constructive algorithms, data structures, implementation	1600	x6476
282E	Sausage Maximization bitmasks, data structures, trees	2200	x3344
280E	Sequence Transformation brute force, data structures, dp, implementation, math	3000	x196
280D	k-Maximum Subsequence Sum data structures, flows, graphs, implementation	2800	x1187
280B	Maximum Xor Secondary data structures, implementation, two pointers	1800	x4366
276E	Little Girl and Problem on Trees data structures, graphs, trees	2100	x1542
276C	Little Girl and Maximum Sum data structures, greedy, implementation, sortings	1500	x23959
274E	Mirror Room data structures, implementation	3000	x299
272C	Dima and Staircase data structures, implementation	1500	x6672
271D	Good Substrings data structures, strings	1800	x10265
270B	Multithreading data structures, greedy, implementation	1400	x4083
269D	Maximum Waterfall data structures, dp, graphs, sortings	2600	x413
266E	More Queries to Array... data structures, math	2500	x718
264E	Roadside Trees data structures, dp	3000	x396
264A	Escape from Stones constructive algorithms, data structures, implementation, two pointers	1200	x10586
263E	Rhombus brute force, data structures, dp	2500	x394
260E	Dividing Kingdom binary search, brute force, data structures	2500	x408
258E	Little Elephant and Tree data structures, dfs and similar, trees	2400	x1026
257E	Greedy Elevator data structures, implementation	2200	x275
256E	Lucky Arrays data structures	2400	x653
253E	Printer binary search, data structures, implementation, sortings	2200	x520
253C	Text Editor data structures, dfs and similar, graphs, greedy, shortest paths	1600	x2520
249D	Donkey and Stars data structures, dp, geometry, math, sortings	2700	x374
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x2956
243E	Matrix data structures	3000	x171
243D	Cubes data structures, dp, geometry, two pointers	2700	x208
242E	XOR on Segment bitmasks, data structures	2000	x8395
241B	Friends binary search, bitmasks, data structures, math	2700	x751
240F	TorCoder data structures	2600	x1779
238D	Tape Programming data structures, implementation	2900	x244
235C	Cyclical Quest data structures, string suffix structures, strings	2700	x2001
232D	Fence binary search, data structures, string suffix structures	2900	x441
231E	Cactus data structures, dfs and similar, dp, graphs, trees	2100	x1536
229B	Planets binary search, data structures, graphs, shortest paths	1700	x4456
228D	Zigzag data structures	2100	x374
226E	Noble Knight's Path data structures, trees	2900	x431
226C	Anniversary data structures, implementation, math, matrices, number theory	2400	x842
223B	Two Strings data structures, dp, strings	1900	x1717
223A	Bracket Sequence data structures, expression parsing, implementation	1700	x2483
222B	Cosmic Tables data structures, implementation	1300	x5982
220E	Little Elephant and Inversions data structures, two pointers	2400	x1330
220C	Little Elephant and Shifts data structures	2100	x921
220B	Little Elephant and Array constructive algorithms, data structures	1800	x9375
219E	Parking Lot data structures	2200	x601
217E	Alien DNA data structures, dsu, trees	2800	x290
213E	Two Permutations data structures, hashing, strings	2700	x766
212D	Cutting a Fence binary search, data structures, dsu	2500	x451
208E	Blood Cousins binary search, data structures, dfs and similar, trees	2100	x6066
207C3	Game with Two Trees data structures	2700	x112
204E	Little Elephant and Strings data structures, implementation, string suffix structures, two pointers	2800	x1079
204B	Little Elephant and Cards binary search, data structures	1500	x5012
200A	Cinema brute force, data structures	2400	x657
198E	Gripping Story binary search, data structures, sortings	2400	x400
196D	The Next Good String data structures, greedy, hashing, strings	2800	x512
195E	Building Forest data structures, dsu, graphs	2000	x686
195B	After Training data structures, implementation, math	1300	x5120
193D	Two Segments data structures	2900	x388
191E	Thwarting Demonstrations binary search, data structures, trees	2200	x805
191C	Fools and Roads data structures, dfs and similar, trees	1900	x6718
190E	Counter Attack data structures, dsu, graphs, hashing, sortings	2100	x1431
187E	Heaven Tour data structures, greedy	2900	x91
187D	BRT Contract data structures	2800	x499
185E	Soap Time! - 2 binary search, data structures	3000	x103
182C	Optimal Sum data structures, greedy	2000	x705
177D2	Encrypting Messages data structures	1500	x1774
176E	Archaeology data structures, dfs and similar, trees	3100	x1021
175F	Gnomes of Might and Magic data structures, graphs, implementation, shortest paths	3000	x64
174C	Range Increments data structures, greedy	1800	x1065
173E	Camping Groups data structures, sortings	2600	x534
167D	Wizards and Roads data structures, divide and conquer, graph matchings, graphs, greedy	3000	x190
165D	Beard Graph data structures, dsu, trees	2100	x1584
163E	e-Government data structures, dfs and similar, dp, strings, trees	2800	x1521
160E	Buses and People binary search, data structures, sortings	2400	x576
159E	Zebra Tower *special problem, data structures, greedy, sortings	1700	x988
159C	String Manipulation 1.0 *special problem, binary search, brute force, data structures, strings	1400	x2918
158C	Cd and pwd commands *special problem, data structures, implementation	1400	x8869
156B	Suspects constructive algorithms, data structures, implementation	1600	x2181
150E	Freezing with Style binary search, data structures, divide and conquer, trees	3000	x789
150C	Smart Cheater data structures, math, probabilities	2200	x625
145E	Lucky Queries data structures	2400	x2897
145D	Lucky Pair combinatorics, data structures, implementation	2900	x238
144E	Competition data structures, greedy	2200	x561
144D	Missile Silos data structures, dfs and similar, graphs, shortest paths	1900	x3777
140C	New Year Snowmen binary search, data structures, greedy	1800	x4197
138C	Mushroom Gnomes - 2 binary search, data structures, probabilities, sortings	2200	x844
137E	Last Chance data structures, implementation, strings	2000	x1187