Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 941 (Div. 1)
13:03:55
Register now »

*has extra registration

Before contest
Codeforces Round 941 (Div. 2)
13:03:55
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

Add tag

Problems

#	Name
1765C	Card Guessing combinatorics, dp, probabilities	2600	x363
1764E	Doremy's Number Line dp, greedy, sortings	2400	x1176
1764D	Doremy's Pegging Game combinatorics, dp, math	2000	x2632
1763F	Edge Queries data structures, dfs and similar, dp, dsu, graphs, trees	3000	x417
1763E	Node Pairs dp, graphs, math, number theory	2200	x1686
1763D	Valid Bitonic Permutations combinatorics, dp, implementation, math, number theory	2200	x1952
1762F	Good Pairs binary search, data structures, dp	2600	x558
1761F2	Anti-median (Hard Version) combinatorics, dp, math	3500	x76
1761F1	Anti-median (Easy Version) dp, math	3100	x197
1759E	The Humanoid brute force, dp, sortings	1500	x9888
1753C	Wish I Knew How to Sort dp, math, probabilities	2000	x4147
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x9753
1753A1	Make Nonzero Sum (easy version) constructive algorithms, dp, greedy	1300	x14252
1750H	BinaryStringForces constructive algorithms, data structures, dp	3500	x72
1750G	Doping combinatorics, dp, math	3300	x224
1750F	Majority combinatorics, dp, math, strings	2700	x855
1750E	Bracket Cost binary search, data structures, divide and conquer, dp, greedy, strings	2400	x1354
1749D	Counting Arrays combinatorics, dp, math, number theory	1900	x5239
1748E	Yet Another Array Counting Problem binary search, data structures, divide and conquer, dp, flows, math, trees	2300	x1696
1748C	Zero-Sum Prefixes brute force, data structures, dp, greedy, implementation	1600	x10402
1747E	List Generation combinatorics, dp, math	2900	x482
1746G	Olympiad Training binary search, data structures, dp, flows, geometry, implementation, sortings	3500	x88
1746E2	Joking (Hard Version) dp, interactive	3200	x366
1746D	Paths on the Tree dfs and similar, dp, greedy, sortings, trees	1900	x4413
1743G	Antifibonacci Cut bitmasks, combinatorics, constructive algorithms, data structures, dp, hashing, math	3000	x244
1743F	Intersection and Union data structures, dp, matrices, probabilities	2300	x1407
1743E	FTL binary search, dp	2400	x1464
1743D	Problem with Random Tests brute force, dp, greedy, probabilities	1700	x7266
1743C	Save the Magazines constructive algorithms, dp, greedy	1100	x18609
1741G	Kirill and Company bitmasks, brute force, dfs and similar, dp, flows, graphs, shortest paths	2200	x1412
1741E	Sending a Sequence Over the Network dp	1600	x10726
1740I	Arranging Crystal Balls data structures, divide and conquer, divide and conquer, dp, geometry, graphs, number theory	3500	x104
1740F	Conditional Mix combinatorics, dp, math	2600	x758
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4095
1739F	Keyboard Design bitmasks, data structures, dp, string suffix structures, strings	2600	x508
1739E	Cleaning Robot bitmasks, dp	2400	x1165
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x8683
1738G	Anti-Increasing Addicts constructive algorithms, dp, greedy, math	2900	x366
1738E	Balance Addicts combinatorics, dp, math, two pointers	2300	x1448
1738C	Even Number Addicts dp, games, greedy, math	1500	x10500
1737E	Ela Goes Hiking combinatorics, dp, math, probabilities	2500	x888
1737D	Ela and the Wiring Wizard brute force, dp, graphs, greedy, implementation, shortest paths	2200	x1806
1736E	Swap and Take dp, greedy	2600	x636
1736C2	Good Subarrays (Hard Version) binary search, data structures, dp, two pointers	2400	x1229
1734F	Zeros and Ones bitmasks, divide and conquer, dp, math	2500	x765
1734D	Slime Escape data structures, dp, greedy, two pointers	1800	x6000
1733E	Conveyor constructive algorithms, dp, math	2700	x1089
1733D2	Zero-One (Hard Version) dp, greedy	2000	x3964
1732E	Location data structures, dp, math, number theory	2800	x406
1732B	Ugu brute force, dp, greedy, implementation	900	x13968
1731F	Function Sum brute force, combinatorics, dp, fft, math	2500	x654
1731E	Graph Cost dp, greedy, math, number theory	2000	x2644
1731D	Valiant's New Map binary search, brute force, data structures, dp, two pointers	1700	x6680
1730F	Almost Sorted bitmasks, data structures, dp	2700	x409
1729G	Cut Substrings combinatorics, dp, hashing, strings, two pointers	2100	x2051
1728G	Illumination binary search, bitmasks, brute force, combinatorics, dp, math, two pointers	2700	x409
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x6824
1725M	Moving Both Hands dp, graphs, shortest paths	1800	x2839
1725J	Journey dp, trees	2500	x356
1725E	Electrical Efficiency combinatorics, data structures, dp, math, number theory, trees	2500	x432
1722E	Counting Rectangles brute force, data structures, dp, implementation	1600	x9990
1721E	Prefix Function Queries dfs and similar, dp, hashing, string suffix structures, strings, trees	2200	x1805
1720D2	Xor-Subsequence (hard version) bitmasks, data structures, dp, strings, trees	2400	x1725
1720D1	Xor-Subsequence (easy version) bitmasks, brute force, dp, strings, trees, two pointers	1800	x5709
1718A2	Burenka and Traditions (hard version) data structures, dp, greedy	1900	x4977
1718A1	Burenka and Traditions (easy version) dp, greedy	1800	x5468
1716F	Bags with Balls combinatorics, dp, math, number theory	2500	x996
1716E	Swap and Maximum Block bitmasks, data structures, dfs and similar, divide and conquer, dp	2500	x1020
1716D	Chip Move brute force, dp, math	2000	x4975
1716C	Robot in a Hallway data structures, dp, greedy, implementation, ternary search	2000	x4000
1715E	Long Way Home data structures, divide and conquer, dp, geometry, graphs, greedy, shortest paths	2400	x1596
1714D	Color with Occurrences brute force, data structures, dp, greedy, strings	1600	x8569
1713F	Lost Array bitmasks, combinatorics, constructive algorithms, dp, math	2900	x506
1713C	Build Permutation constructive algorithms, dp, math	1200	x16788
1710C	XOR Triangle bitmasks, brute force, constructive algorithms, dp, greedy, math	2500	x1268
1709F	Multiset of Strings bitmasks, brute force, dp, fft, flows, graphs, math, meet-in-the-middle, trees	2500	x531
1709B	Also Try Minecraft data structures, dp, implementation	900	x21796
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x144
1707D	Partial Virtual Trees combinatorics, dfs and similar, dp, math, trees	3000	x579
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1649
1706C	Qpwoeirut And The City dp, flows, greedy, implementation	1400	x14411
1706B	Making Towers dp, greedy, math	1100	x16194
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x170
1704F	Colouring Game constructive algorithms, dp, games	2600	x922
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2212
1703G	Good Key, Bad Key bitmasks, brute force, dp, greedy, math	1600	x9949
1703F	Yet Another Problem About Pairs Satisfying an Inequality binary search, data structures, dp, greedy, sortings	1300	x18057
1701E	Text Editor brute force, dp, greedy, strings	2500	x1054
1700F	Puzzle constructive algorithms, dp, greedy	2600	x829
1700D	River Locks binary search, dp, greedy, math	1900	x5819
1699E	Three Days Grace data structures, dp, greedy, math, number theory, two pointers	2600	x1075
1699D	Almost Triple Deletions data structures, dp, greedy	2300	x3021
1697E	Coloring brute force, combinatorics, constructive algorithms, dp, geometry, graphs, greedy, implementation, math	2400	x1135
1696H	Maximum Product? brute force, combinatorics, dp, greedy, implementation, math, two pointers	3500	x152
1695D2	Tree Queries (Hard Version) constructive algorithms, dfs and similar, dp, greedy, trees	2300	x1910
1695D1	Tree Queries (Easy Version) brute force, constructive algorithms, dfs and similar, dp, greedy, trees	2200	x2081
1695C	Zero Path brute force, data structures, dp, graphs, greedy, shortest paths	1700	x10344
1693D	Decinc Dividing brute force, data structures, divide and conquer, dp, greedy	2800	x770
1693B	Fake Plastic Trees dfs and similar, dp, greedy, trees	1700	x8037
1692H	Gambling data structures, dp, greedy, math	1700	x7023