Problemset - Codeforces

Please read the new rule regarding the restriction on the use of AI tools. ×

→ Pay attention

Before contest
Codeforces Round 976 (Div. 2) and Divide By Zero 9.0
08:07:53
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
216D	Spider's Web binary search, sortings, two pointers	1700	x1353
216C	Hiring Staff greedy	1800	x1841
216B	Forming Teams dfs and similar, implementation	1700	x6339
215E	Periodical Numbers combinatorics, dp, number theory	2100	x555
215D	Hot Days greedy	1900	x1597
215C	Crosses brute force, implementation	2100	x668
214B	Hometask brute force, constructive algorithms, greedy, math	1600	x4958
213E	Two Permutations data structures, hashing, strings	2700	x794
213D	Stars constructive algorithms, geometry	2300	x340
213C	Relay Race dp	2000	x2842
213B	Numbers combinatorics, dp	1900	x1766
213A	Game dfs and similar, greedy	1700	x1720
212E	IT Restaurants dfs and similar, dp, trees	1500	x1735
212D	Cutting a Fence binary search, data structures, dsu	2500	x510
212C	Cowboys combinatorics, dp, math	2100	x387
212B	Polycarpus is Looking for Good Substrings bitmasks, hashing, implementation	2300	x332
212A	Privatization flows, graphs	3000	x203
209C	Trails and Glades constructive algorithms, dsu, graphs, greedy	2400	x730
209B	Pixels constructive algorithms, math	2100	x375
209A	Multicolored Marbles dp, math	1600	x2332
208E	Blood Cousins binary search, data structures, dfs and similar, trees	2100	x6615
208C	Police Station dp, graphs, shortest paths	1900	x1844
208B	Solitaire dfs and similar, dp	1900	x1357
207D9	The Beaver's Problem - 3	1800	x88
207D8	The Beaver's Problem - 3	2300	x95
207D7	The Beaver's Problem - 3	1600	x101
207D6	The Beaver's Problem - 3	2100	x84
207D5	The Beaver's Problem - 3	1600	x142
207D4	The Beaver's Problem - 3	2100	x154
207D3	The Beaver's Problem - 3	2000	x136
207D2	The Beaver's Problem - 3	2000	x109
207D10	The Beaver's Problem - 3	2100	x82
207D1	The Beaver's Problem - 3	1800	x117
207C3	Game with Two Trees data structures	2700	x132
207C2	Game with Two Trees	2200	x84
207C1	Game with Two Trees	2100	x107
207B3	Military Trainings	1700	x163
207B2	Military Trainings	1900	x181
207B1	Military Trainings	1600	x266
207A3	Beaver's Calculator 1.0 greedy	2000	x214
207A2	Beaver's Calculator 1.0 greedy	1800	x235
207A1	Beaver's Calculator 1.0 greedy	1600	x286
205B	Little Elephant and Sorting brute force, greedy	1400	x6029
204E	Little Elephant and Strings data structures, implementation, string suffix structures, two pointers	2800	x1156
204D	Little Elephant and Retro Strings dp	2400	x581
204C	Little Elephant and Furik and Rubik math, probabilities	2000	x1098
204B	Little Elephant and Cards binary search, data structures	1500	x5187
204A	Little Elephant and Interval binary search, combinatorics, dp	1500	x5689
203E	Transportation greedy, sortings, two pointers	2300	x280
203D	Hit Ball geometry, implementation, math	1700	x1417
203C	Photographer greedy, sortings	1400	x5664
202B	Brand New Easy Problem brute force	1700	x817
201E	Thoroughly Bureaucratic Organization binary search, combinatorics	2600	x415
201D	Brand New Problem bitmasks, brute force, dp	2600	x414
201C	Fragile Bridges dp	2000	x1354
201B	Guess That Car! math, ternary search	1800	x1265
201A	Clear Symmetry constructive algorithms, dp, math	1700	x2999
200E	Tractor College implementation, math, number theory, ternary search	2400	x344
200D	Programming Language binary search, brute force, expression parsing, implementation	1800	x914
200C	Football Championship brute force, implementation	1800	x1056
200A	Cinema brute force, data structures	2400	x680
199B	Special Olympics geometry	1900	x803
198E	Gripping Story binary search, data structures, sortings	2400	x414
198D	Cube Snake constructive algorithms	2700	x105
198C	Delivering Carcinogen binary search, geometry	2400	x374
198B	Jumping on Walls shortest paths	1400	x4252
198A	About Bacteria implementation, math	1700	x3149
197B	Limit math	1400	x4633
197A	Plate Game constructive algorithms, games, math	1600	x6293
196E	Opening Portals dsu, graphs, shortest paths	2600	x924
196D	The Next Good String data structures, greedy, hashing, strings	2800	x531
196C	Paint Tree constructive algorithms, divide and conquer, geometry, sortings, trees	2200	x957
196B	Infinite Maze dfs and similar, graphs	2000	x2207
195E	Building Forest data structures, dsu, graphs	2000	x701
195D	Analyzing Polyline geometry, math, sortings	1900	x1038
195C	Try and Catch expression parsing, implementation	1800	x1140
193E	Fibonacci Number brute force, math, matrices	2900	x340
193D	Two Segments data structures	2900	x450
193C	Hamming Distance constructive algorithms, greedy, math, matrices	2400	x516
193B	Xor brute force	2000	x1009
193A	Cutting Figure constructive algorithms, graphs, trees	1700	x3993
191E	Thwarting Demonstrations binary search, data structures, trees	2200	x842
191D	Metro Scheme graphs, greedy	2700	x364
191C	Fools and Roads data structures, dfs and similar, trees	1900	x7164
191B	Demonstration greedy	1700	x1008
191A	Dynasty Puzzles dp	1500	x3945
190E	Counter Attack data structures, dsu, graphs, hashing, sortings	2100	x1522
190D	Non-Secret Cypher two pointers	1900	x2300
190C	STL dfs and similar	1500	x2817
190B	Surrounded geometry	1800	x2830
188H	Stack *special problem, expression parsing, implementation	1800	x252
188G	Array Sorting *special problem, implementation	1600	x333
188F	Binary Notation *special problem, implementation	1400	x298
188E	HQ9+ *special problem, implementation	1400	x498
188C	LCM *special problem, implementation, math	1400	x451
187E	Heaven Tour data structures, greedy	2900	x99
187D	BRT Contract data structures	2800	x530
187C	Weak Memory dfs and similar, dsu	2000	x1331
187B	AlgoRace dp, shortest paths	1800	x1954
187A	Permutations greedy	1500	x2758