Problemset - Codeforces

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

→ Pay attention

Before contest
Codeforces Round 974 (Div. 3)
19:12:20
Register now »

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
276E	Little Girl and Problem on Trees data structures, graphs, trees	2100	x1597
276D	Little Girl and Maximum XOR bitmasks, dp, greedy, implementation, math	1700	x13704
275B	Convex Shape constructive algorithms, implementation	1700	x2820
274E	Mirror Room data structures, implementation	3000	x313
274D	Lovely Matrix dfs and similar, graphs, greedy, sortings	2200	x1029
274C	The Last Hole! brute force, geometry	2600	x350
274B	Zero Tree dfs and similar, dp, greedy, trees	1800	x4997
273E	Dima and Game dp, games	2600	x366
273D	Dima and Figure dp	2400	x412
272E	Dima and Horses combinatorics, constructive algorithms, graphs	2200	x1218
272D	Dima and Two Sequences combinatorics, math, sortings	1600	x2614
271E	Three Horses constructive algorithms, math, number theory	2200	x486
271D	Good Substrings data structures, strings	1800	x11144
269E	String Theory geometry, math, strings	3100	x108
269D	Maximum Waterfall data structures, dp, graphs, sortings	2600	x449
269C	Flawed Flow constructive algorithms, flows, graphs, greedy	2100	x1673
269B	Greenhouse Effect dp	1700	x6282
269A	Magical Boxes greedy, math	1600	x3518
268E	Playlist math, probabilities, sortings	2100	x986
268D	Wall Bars dp	2300	x508
267C	Berland Traffic math, matrices	2700	x161
267B	Dominoes dfs and similar, graphs	2000	x632
266E	More Queries to Array... data structures, math	2500	x918
266D	BerDonalds graphs, math, shortest paths	2400	x890
266C	Below the Diagonal constructive algorithms, greedy, math	2100	x1347
264E	Roadside Trees data structures, dp	3000	x428
264D	Colorful Stones dp, two pointers	2500	x419
264C	Choosing Balls dp	2000	x2898
263E	Rhombus brute force, data structures, dp	2500	x400
263D	Cycle in Graph dfs and similar, graphs	1800	x3584
263C	Circle of Numbers brute force, dfs and similar, implementation	2000	x1075
261E	Maxim and Calculator brute force, dp, two pointers	2800	x413
261D	Maxim and Increasing Subsequence dp	2600	x561
261C	Maxim and Matrix constructive algorithms, dp, math	2000	x771
261B	Maxim and Restaurant dp, math, probabilities	1900	x1402
260E	Dividing Kingdom binary search, brute force, data structures	2500	x455
260D	Black and White Tree constructive algorithms, dsu, graphs, greedy, trees	2100	x1535
260C	Balls and Boxes constructive algorithms, greedy, implementation	1700	x2964
260B	Ancient Prophesy brute force, implementation, strings	1600	x3799
258E	Little Elephant and Tree data structures, dfs and similar, trees	2400	x1092
258D	Little Elephant and Broken Sorting dp, math, probabilities	2600	x1252
258C	Little Elephant and LCM binary search, combinatorics, dp, math	2000	x1784
258B	Little Elephant and Elections brute force, combinatorics, dp	1900	x1446
257E	Greedy Elevator data structures, implementation	2200	x285
257D	Sum greedy, math	1900	x1569
257C	View Angle brute force, geometry, math	1800	x4293
256E	Lucky Arrays data structures	2400	x666
256D	Liars and Serge dp	2700	x256
255E	Furlo and Rublo and Game games, implementation, math	2200	x850
255D	Mr. Bender and Square binary search, implementation, math	1800	x1973
254E	Dormitory dp, implementation	2100	x669
254D	Rats brute force, dfs and similar, graphs, implementation, shortest paths	2300	x535
254C	Anagram greedy, strings	1800	x1491
253E	Printer binary search, data structures, implementation, sortings	2200	x526
253D	Table with Letters - 2 brute force, two pointers	2000	x830
253C	Text Editor data structures, dfs and similar, graphs, greedy, shortest paths	1600	x2593
252B	Unsorting Array brute force, sortings	1800	x1710
251E	Tree and Table dfs and similar, dp, implementation, trees	3000	x170
251D	Two Sets bitmasks, math	2700	x475
251C	Number Transformation dp, greedy, number theory	2000	x1025
251B	Playing with Permutations implementation, math	1800	x1267
250E	Mad Joe brute force	2000	x465
250D	Building Bridge geometry, ternary search, two pointers	1900	x889
250C	Movie Critics greedy	1600	x1925
249E	Endless Matrix math	2600	x306
249D	Donkey and Stars data structures, dp, geometry, math, sortings	2700	x453
248E	Piglet's Birthday dp, math, probabilities	2600	x579
248D	Sweets for Everyone! binary search, greedy, implementation	2300	x494
248C	Robo-Footballer binary search, geometry	2000	x844
246E	Blood Cousins Return binary search, data structures, dfs and similar, dp, sortings	2400	x3193
246D	Colorful Graph brute force, dfs and similar, graphs	1600	x9399
246C	Beauty Pageant brute force, constructive algorithms, greedy	1600	x2621
245H	Queries for Number of Palindromes dp, hashing, strings	1800	x6555
245G	Suggested Friends brute force, graphs	2200	x431
245F	Log Stream Analysis binary search, brute force, implementation, strings	2000	x875
245C	Game with Coins greedy	1700	x1542
244B	Undoubtedly Lucky Numbers bitmasks, brute force, dfs and similar	1600	x4462
243E	Matrix data structures	3000	x190
243D	Cubes data structures, dp, geometry, two pointers	2700	x214
243C	Colorado Potato Beetle dfs and similar, implementation	2200	x529
243B	Hydra graphs, sortings	2000	x1222
243A	The Brand New Function bitmasks	1600	x3904
242E	XOR on Segment bitmasks, data structures	2000	x9048
242D	Dispute dfs and similar, graphs, greedy	2100	x1865
242C	King's Path dfs and similar, graphs, hashing, shortest paths	1800	x8526
241G	Challenging Balloons constructive algorithms	1900	x545
241F	Race brute force, implementation	2300	x263
241E	Flights graphs, shortest paths	2600	x1063
241D	Numbers	2900	x367
241C	Mirror Box geometry, implementation	2000	x511
241B	Friends binary search, bitmasks, data structures, math	2700	x805
240F	TorCoder data structures	2600	x1938
240E	Road Repairs dfs and similar, graphs, greedy	2800	x356
238E	Meeting Her dp, graphs, shortest paths	2600	x384
238D	Tape Programming data structures, implementation	2900	x247
238C	World Eater Brothers dfs and similar, dp, greedy, trees	2100	x1229
238B	Boring Partition constructive algorithms	1800	x1285
237E	Build String flows, graphs	2000	x1700
237D	T-decomposition dfs and similar, graphs, greedy, trees	2000	x561
237C	Primes on Interval binary search, number theory, two pointers	1600	x5716