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: —

Add tag

Problems

#	Name
995E	Number Clicker divide and conquer, graphs, meet-in-the-middle, number theory	2700	x687
995D	Game math	2500	x767
995C	Leaving the Bar brute force, data structures, geometry, greedy, math, sortings	2300	x1907
995B	Suit and Tie greedy, implementation, math	1400	x7112
995A	Tesla constructive algorithms, implementation	2100	x1701
994B	Knights of a Polygonal Table greedy, implementation, sortings	1400	x5738
994A	Fingerprints implementation	800	x14220
993F	The Moral Dilemma	3200	x60
993E	Nikita and Order Statistics chinese remainder theorem, fft, math	2300	x1433
993D	Compute Power binary search, dp, greedy	2500	x754
993C	Careful Maneuvering bitmasks, brute force, geometry	2100	x1704
993B	Open Communication bitmasks, brute force	1900	x1956
993A	Two Squares geometry, implementation	1600	x4161
992E	Nastya and King-Shamans binary search, data structures	2500	x1452
992D	Nastya and a Game brute force, implementation, math	2100	x1655
992C	Nastya and a Wardrobe math	1600	x4620
992B	Nastya Studies Informatics math, number theory	1600	x6292
992A	Nastya and an Array implementation, sortings	800	x13185
991F	Concise and clear brute force, greedy, implementation, math	2700	x310
991E	Bus Number brute force, combinatorics, math	1800	x3509
991D	Bishwock dp, greedy	1500	x7201
991C	Candies binary search, implementation	1500	x10528
991B	Getting an A greedy, sortings	900	x12669
991A	If at first you don't succeed... implementation	1000	x10644
990G	GCD Counting divide and conquer, dp, dsu, number theory, trees	2400	x1880
990F	Flow Control dfs and similar, dp, greedy, trees	2400	x908
990E	Post Lamps brute force, greedy	2100	x2028
990D	Graph And Its Complement constructive algorithms, graphs, implementation	1700	x3846
990C	Bracket Sequences Concatenation Problem implementation	1500	x5927
990B	Micro-World greedy, sortings	1200	x8150
990A	Commentary Boxes implementation, math	1000	x10622
989E	A Trance of Nightfall dp, geometry, matrices, probabilities	2700	x253
989D	A Shade of Moonlight binary search, geometry, math, sortings, two pointers	2500	x517
989C	A Mist of Florescence constructive algorithms, graphs	1800	x3820
989B	A Tide of Riverscape constructive algorithms, strings	1200	x7064
989A	A Blend of Springtime implementation, strings	900	x10391
988F	Rain and Umbrellas dp	2100	x2338
988E	Divisibility by 25 brute force, greedy	2100	x3986
988D	Points and Powers of Two brute force, math	1800	x7338
988C	Equal Sums implementation, sortings	1400	x10270
988B	Substrings Sort sortings, strings	1100	x18561
988A	Diverse Team brute force, implementation	800	x25249
987C	Three displays brute force, dp, implementation	1400	x13615
987B	High School: Become Human math	1100	x11650
987A	Infinity Gauntlet implementation	800	x16630
986F	Oppa Funcan Style Remastered graphs, math, number theory, shortest paths	3300	x642
986E	Prince's Problem brute force, data structures, math, number theory, trees	2800	x799
986D	Perfect Encoding fft, math	3100	x332
986C	AND Graph bitmasks, dfs and similar, dsu, graphs	2500	x2466
986B	Petr and Permutations combinatorics, math	1800	x4684
986A	Fair graphs, greedy, number theory, shortest paths	1600	x7012
985G	Team Players combinatorics	2700	x526
985F	Isomorphic Strings hashing, strings	2300	x1866
985E	Pencils and Boxes binary search, data structures, dp, greedy, two pointers	2100	x3683
985D	Sand Fortress binary search, constructive algorithms, math	2100	x2567
985C	Liebig's Barrels greedy	1500	x5779
985B	Switches and Lamps implementation	1200	x7408
985A	Chess Placing implementation	1100	x8172
984B	Minesweeper implementation	1100	x7378
984A	Game sortings	800	x19535
983E	NN country binary search, data structures, trees	2800	x949
983D	Arkady and Rectangles data structures	3300	x396
983C	Elevator dp, graphs, shortest paths	2400	x841
983B	XOR-pyramid dp	1800	x5570
983A	Finite or not? implementation, math	1700	x4555
982F	The Meeting Place Cannot Be Changed dfs and similar, graphs	2700	x195
982E	Billiard geometry, number theory	2600	x719
982D	Shark brute force, data structures, dsu, trees	1900	x2340
982C	Cut 'em all! dfs and similar, dp, graphs, greedy, trees	1500	x11700
982B	Bus of Characters data structures, greedy, implementation	1300	x8317
982A	Row brute force, constructive algorithms	1200	x9099
981H	K Paths combinatorics, data structures, dp, fft, math	3100	x271
981G	Magic multisets data structures	2500	x692
981F	Round Marriage binary search, graph matchings, greedy	2500	x788
981E	Addition on Segments bitmasks, data structures, divide and conquer, dp	2200	x2128
981D	Bookshelves bitmasks, dp, greedy	1900	x3271
981C	Useful Decomposition implementation, trees	1400	x5496
981B	Businessmen Problems sortings	1000	x6991
981A	Antipalindrome brute force, implementation, strings	900	x9432
980F	Cactus to Tree dp, graphs, trees	2900	x197
980E	The Number Games data structures, greedy, trees	2200	x1945
980D	Perfect Groups dp, math, number theory	2100	x2722
980C	Posterized games, greedy	1700	x3801
980B	Marlin constructive algorithms	1600	x4701
980A	Links and Pearls implementation, math	900	x10444
979E	Kuro and Topological Parity dp	2400	x665
979D	Kuro and GCD and XOR and SUM binary search, bitmasks, brute force, data structures, dp, dsu, greedy, math, number theory, strings, trees	2200	x1843
979C	Kuro and Walking Route dfs and similar, trees	1600	x6350
979B	Treasure Hunt greedy	1800	x4438
979A	Pizza, Pizza, Pizza!!! math	1000	x13851
978G	Petya's Exams greedy, implementation, sortings	1700	x4394
978F	Mentors binary search, data structures, implementation	1500	x8345
978E	Bus Video System combinatorics, math	1400	x9607
978D	Almost Arithmetic Progression brute force, implementation, math	1500	x8831
978C	Letters binary search, implementation, two pointers	1000	x25918
978B	File Name greedy, strings	800	x36662
978A	Remove Duplicates implementation	800	x27354
977F	Consecutive Subsequence dp	1700	x19519
977E	Cyclic Components dfs and similar, dsu, graphs	1500	x20895
977D	Divide by three, multiply by two dfs and similar, math, sortings	1400	x18490