Problemset - Codeforces

→ Pay attention

Before contest
Rayan Programming Contest 2024 - Selection (Codeforces Round, Div. 1 + Div. 2)
6 days
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
484C	Strange Sorting implementation, math	2600	x594
484B	Maximum Value binary search, math, sortings, two pointers	2100	x7079
484A	Bits bitmasks, constructive algorithms	1700	x11486
483B	Friends and Presents binary search, math	1800	x4096
483A	Counterexample brute force, implementation, math, number theory	1100	x23255
482E	ELCA data structures, trees	3200	x177
482D	Random Function and Tree combinatorics, dp, trees	2700	x537
482C	Game with Strings bitmasks, dp, probabilities	2600	x935
482B	Interesting Array constructive algorithms, data structures, trees	1800	x6581
482A	Diverse Permutation constructive algorithms, greedy	1200	x9666
480E	Parking Lot data structures, divide and conquer	2800	x570
480D	Parcels dp, graphs	2600	x460
479E	Riding in a Lift combinatorics, dp	1900	x5174
479D	Long Jumps binary search, greedy, implementation	1700	x4796
479C	Exams greedy, sortings	1400	x29897
479B	Towers brute force, constructive algorithms, greedy, implementation, sortings	1400	x7931
479A	Expression brute force, math	1000	x95368
478E	Wavy numbers brute force, dfs and similar, meet-in-the-middle, sortings	2900	x221
478D	Red-Green Towers dp	2000	x6059
478C	Table Decorations greedy	1800	x18381
478B	Random Teams combinatorics, constructive algorithms, greedy, math	1300	x36919
478A	Initial Bet implementation	1100	x25780
477E	Dreamoon and Notepad data structures	3100	x135
477D	Dreamoon and Binary dp, strings	2700	x527
476E	Dreamoon and Strings dp, strings	2200	x1972
476D	Dreamoon and Sets constructive algorithms, greedy, math	1900	x4695
476C	Dreamoon and Sums math	1600	x5751
476B	Dreamoon and WiFi bitmasks, brute force, combinatorics, dp, math, probabilities	1300	x31141
476A	Dreamoon and Stairs implementation, math	1000	x44432
475F	Meta-universe data structures	2900	x230
475E	Strongly Connected City 2 dfs and similar	2700	x413
475D	CGCDSSQ brute force, data structures, math	2000	x4993
475C	Kamal-ol-molk's Painting brute force, constructive algorithms, greedy	2100	x786
475B	Strongly Connected City brute force, dfs and similar, graphs, implementation	1400	x8531
475A	Bayan Bus implementation	1100	x4779
474F	Ant colony data structures, math, number theory	2100	x8849
474E	Pillars binary search, data structures, dp, sortings, trees	2000	x3405
474D	Flowers dp	1700	x25576
474C	Captain Marmot brute force, geometry	2000	x3132
474B	Worms binary search, implementation	1200	x49254
474A	Keyboard implementation	900	x46113
472G	Design Tutorial: Increase the Constraints bitmasks, data structures, fft	2800	x407
472F	Design Tutorial: Change the Goal constructive algorithms, math, matrices	2700	x259
472E	Design Tutorial: Learn from a Game constructive algorithms, implementation	2800	x131
472D	Design Tutorial: Inverse the Problem dfs and similar, dsu, shortest paths, trees	1900	x5454
472C	Design Tutorial: Make It Nondeterministic greedy	1400	x6366
472B	Design Tutorial: Learn from Life	1300	x7441
472A	Design Tutorial: Learn from Math math, number theory	800	x60821
471E	MUH and Lots and Lots of Segments data structures, dsu	2700	x82
471D	MUH and Cube Walls string suffix structures, strings	1800	x8260
471C	MUH and House of Cards binary search, brute force, greedy, math	1700	x3571
471B	MUH and Important Things implementation, sortings	1300	x5964
471A	MUH and Sticks implementation	1100	x13434
470H	Array Sorting *special problem	2300	x189
470G	Hamming Distance *special problem	2300	x95
470F	Pairwise Sums *special problem	2300	x106
470E	Chessboard *special problem	1900	x198
470D	Caesar Cipher *special problem	1900	x153
470C	Eval *special problem	1900	x255
470B	Hexakosioihexekontahexaphobia *special problem	1800	x260
470A	Crystal Ball Sequence *special problem, implementation	1400	x677
469B	Chat Online implementation	1300	x12719
469A	I Wanna Be the Guy greedy, implementation	800	x99260
468E	Permanent dp, graph matchings, math, meet-in-the-middle	3100	x323
468D	Tree graph matchings	3100	x367
468C	Hack it! binary search, constructive algorithms, math	2500	x2425
468B	Two Sets 2-sat, dfs and similar, dsu, graph matchings, greedy	2000	x4257
468A	24 Game constructive algorithms, greedy, math	1500	x8008
467E	Alex and Complicated Task data structures, dp, greedy	2300	x789
467D	Fedor and Essay dfs and similar, dp, graphs, hashing, strings	2400	x1861
467C	George and Job dp, implementation	1700	x14787
467B	Fedor and New Game bitmasks, brute force, constructive algorithms, implementation	1100	x37947
467A	George and Accommodation implementation	800	x124475
466E	Information Graph dfs and similar, dsu, graphs, trees	2100	x2246
466D	Increase Sequence combinatorics, dp	2100	x3233
466C	Number of Ways binary search, brute force, data structures, dp, two pointers	1700	x36556
466B	Wonder Room brute force, math	2000	x4932
466A	Cheap Travel implementation	1200	x64299
465B	Inbox (100500) implementation	1000	x10453
465A	inc ARG implementation	900	x10076
464E	The Classic Problem data structures, graphs, shortest paths	3000	x1506
464D	World of Darkraft - 2 dp, probabilities	2700	x671
464C	Substitutes in Number dp	2100	x1856
464B	Restore Cube brute force, geometry	2000	x1713
464A	No to Palindromes! greedy, strings	1700	x5920
463E	Caisa and Tree brute force, dfs and similar, math, number theory, trees	2100	x1618
463D	Gargari and Permutations dfs and similar, dp, graphs, implementation	1900	x6564
463C	Gargari and Bishops greedy, hashing, implementation	1900	x8768
463B	Caisa and Pylons brute force, implementation, math	1100	x27493
463A	Caisa and Sugar brute force, implementation	1200	x9276
462B	Appleman and Card Game greedy	1300	x14534
462A	Appleman and Easy Task brute force, implementation	1000	x16960
461E	Appleman and a Game binary search, shortest paths, strings	3000	x451
461D	Appleman and Complicated Task dsu, math	2800	x366
461C	Appleman and a Sheet of Paper data structures, implementation	2200	x1336
461B	Appleman and Tree dfs and similar, dp, trees	2000	x5780
461A	Appleman and Toastman greedy, sortings	1200	x15562
460E	Roland and Rose brute force, geometry, math, sortings	2700	x343
460D	Little Victor and Set brute force, constructive algorithms, math	2300	x1003
460C	Present binary search, data structures, greedy	1700	x6253