Problemset - Codeforces

→ Pay attention

Before contest
Codeforces Round 941 (Div. 1)
47:17:50
Register now »

*has extra registration

Before contest
Codeforces Round 941 (Div. 2)
47:17:50
Register now »

*has extra registration

→ Filter Problems

Difficulty: —

constructive algorithms

Add tag

Problems

#	Name
1753D	The Beach constructive algorithms, dfs and similar, graphs, shortest paths	2400	x1658
1753A2	Make Nonzero Sum (hard version) constructive algorithms, dp, greedy	1500	x9744
1753A1	Make Nonzero Sum (easy version) constructive algorithms, dp, greedy	1300	x14241
1750H	BinaryStringForces constructive algorithms, data structures, dp	3500	x72
1750C	Complementary XOR constructive algorithms, implementation	1400	x9223
1750A	Indirect Sort constructive algorithms, implementation, math	800	x16739
1749E	Cactus Wall constructive algorithms, dfs and similar, graphs, shortest paths	2400	x1596
1748F	Circular Xor Reversal bitmasks, constructive algorithms	3000	x322
1748D	ConstructOR bitmasks, chinese remainder theorem, combinatorics, constructive algorithms, math, number theory	2100	x2653
1747D	Yet Another Problem binary search, bitmasks, constructive algorithms, data structures	1900	x4462
1747B	BAN BAN constructive algorithms	900	x21534
1747A	Two Groups constructive algorithms, greedy	800	x24303
1746E1	Joking (Easy Version) binary search, constructive algorithms, interactive, ternary search	2500	x1338
1746C	Permutation Operations constructive algorithms, greedy, implementation, math	1300	x12303
1746B	Rebellion constructive algorithms, greedy, two pointers	800	x16699
1746A	Maxmina constructive algorithms, greedy	800	x19425
1743G	Antifibonacci Cut bitmasks, combinatorics, constructive algorithms, data structures, dp, hashing, math	3000	x244
1743C	Save the Magazines constructive algorithms, dp, greedy	1100	x18603
1743B	Permutation Value constructive algorithms, greedy	800	x21891
1742F	Smaller constructive algorithms, greedy, strings	1500	x10719
1741B	Funny Permutation constructive algorithms, math	800	x24727
1740G	Dangerous Laser Power constructive algorithms, dsu, sortings	3100	x177
1740E	Hanging Hearts constructive algorithms, data structures, dfs and similar, dp, greedy, trees	1800	x4092
1740D	Knowledge Cards constructive algorithms, data structures	1500	x7665
1740C	Bricks and Bags constructive algorithms, games, greedy, sortings	1400	x10524
1740A	Factorise N+M constructive algorithms, number theory	800	x19559
1739C	Card Game combinatorics, constructive algorithms, dp, games	1500	x8681
1739B	Array Recovery constructive algorithms, greedy, math	1100	x21348
1738G	Anti-Increasing Addicts constructive algorithms, dp, greedy, math	2900	x366
1738F	Connectivity Addicts constructive algorithms, dsu, graphs, greedy, interactive, shortest paths, trees	2400	x1145
1738D	Permutation Addicts constructive algorithms, data structures, dfs and similar, dsu, graphs, trees	1900	x3312
1738B	Prefix Sum Addicts constructive algorithms, greedy, math, sortings	1200	x14711
1737F	Ela and Prime GCD constructive algorithms, math, number theory	3300	x117
1737C	Ela and Crickets constructive algorithms, games, implementation, math	1500	x5547
1736D	Equal Binary Subsequences constructive algorithms, geometry, greedy, implementation, strings	2200	x2385
1735E	House Planning constructive algorithms, data structures, graph matchings, greedy	2400	x1021
1735A	Working Week constructive algorithms, greedy, math	800	x19861
1734E	Rectangular Congruence constructive algorithms, number theory	2100	x2749
1734B	Bright, Nice, Brilliant constructive algorithms	800	x15560
1733E	Conveyor constructive algorithms, dp, math	2700	x1089
1733D1	Zero-One (Easy Version) constructive algorithms, greedy, math	1400	x12866
1733C	Parity Shuffle Sorting constructive algorithms, sortings	1300	x15053
1733B	Rule of League constructive algorithms, math	900	x19221
1732A	Bestie brute force, combinatorics, constructive algorithms, implementation, math, number theory	1000	x14380
1730D	Prefixes and Suffixes constructive algorithms, strings, two pointers	2200	x2584
1729C	Jumping on Tiles constructive algorithms, strings	1100	x19342
1728D	Letter Picking constructive algorithms, dp, games, two pointers	1800	x6819
1728B	Best Permutation constructive algorithms, greedy	800	x19901
1726D	Edge Split brute force, constructive algorithms, dfs and similar, dsu, graphs, probabilities, trees	2000	x3533
1726B	Mainak and Interesting Sequence bitmasks, constructive algorithms, math	1100	x14600
1725H	Hot Black Hot White constructive algorithms, math	1800	x2494
1722G	Even-Odd XOR bitmasks, constructive algorithms, greedy	1500	x10262
1721F	Matching Reduction brute force, constructive algorithms, dfs and similar, flows, graph matchings, graphs, interactive	2800	x359
1720E	Misha and Paintings constructive algorithms, data structures, greedy, implementation, math	2700	x734
1719B	Mathematical Circus constructive algorithms, math	800	x18276
1718E	Impressionism constructive algorithms, graphs, implementation, math	3500	x102
1717F	Madoka and The First Session constructive algorithms, flows, graph matchings, graphs, implementation	2500	x507
1717D	Madoka and The Corruption Scheme combinatorics, constructive algorithms, greedy, math	1900	x4241
1717B	Madoka and Underground Competitions constructive algorithms, implementation	1100	x14462
1716B	Permutation Chain constructive algorithms, math	800	x21178
1715F	Crop Squares constructive algorithms, geometry, interactive, math	2700	x501
1715B	Beautiful Array constructive algorithms, greedy, math	1000	x20013
1715A	Crossmarket constructive algorithms, greedy, math	800	x23152
1714F	Build a Tree and That Is It constructive algorithms, implementation, trees	1900	x3054
1713F	Lost Array bitmasks, combinatorics, constructive algorithms, dp, math	2900	x506
1713D	Tournament Countdown constructive algorithms, greedy, interactive, number theory, probabilities	1800	x5425
1713C	Build Permutation constructive algorithms, dp, math	1200	x16783
1713B	Optimal Reduction constructive algorithms, sortings	1000	x20705
1712D	Empty Graph binary search, constructive algorithms, data structures, greedy, shortest paths	2000	x4250
1712B	Woeful Permutation constructive algorithms, greedy, number theory	800	x21208
1711A	Perfect Permutation constructive algorithms	800	x24776
1710D	Recover the Tree constructive algorithms, trees	3400	x405
1710C	XOR Triangle bitmasks, brute force, constructive algorithms, dp, greedy, math	2500	x1267
1710A	Color the Picture constructive algorithms, greedy, math	1500	x10571
1709C	Recover an RBS constructive algorithms, greedy, implementation, strings	1800	x8473
1708B	Difference of GCDs constructive algorithms, math	1100	x19419
1707F	Bugaboo bitmasks, constructive algorithms, dp, number theory	3500	x144
1707A	Doremy's IQ binary search, constructive algorithms, greedy, implementation	1600	x12796
1706D2	Chopping Carrots (Hard Version) brute force, constructive algorithms, data structures, dp, greedy, math, number theory, two pointers	2400	x1649
1706D1	Chopping Carrots (Easy Version) binary search, brute force, constructive algorithms, greedy, number theory	1700	x6645
1706A	Another String Minimization Problem 2-sat, constructive algorithms, greedy, string suffix structures, strings	800	x22530
1705F	Mark and the Online Exam bitmasks, constructive algorithms, interactive, probabilities	2900	x572
1705D	Mark and Lightbulbs combinatorics, constructive algorithms, greedy, math, sortings	1800	x6083
1705B	Mark the Dust Sweeper constructive algorithms, greedy, implementation	900	x22128
1704H1	Game of AI (easy version) combinatorics, constructive algorithms, dp, fft, math	3200	x170
1704G	Mio and Lucky Array constructive algorithms, fft, math, strings	3500	x96
1704F	Colouring Game constructive algorithms, dp, games	2600	x922
1704E	Count Seconds brute force, constructive algorithms, dp, graphs, implementation, math	2200	x2211
1704D	Magical Array constructive algorithms, hashing, implementation, math	1900	x4834
1704A	Two 0-1 Sequences constructive algorithms, greedy	800	x15773
1702F	Equate Multisets constructive algorithms, data structures, greedy, math, number theory	1700	x7902
1702A	Round Down the Price constructive algorithms	800	x33336
1700F	Puzzle constructive algorithms, dp, greedy	2600	x829
1700E	Serega the Pirate brute force, constructive algorithms	2600	x824
1700C	Helping the Nature constructive algorithms, data structures, greedy	1700	x10441
1700B	Palindromic Numbers constructive algorithms, implementation, math	1100	x18223
1700A	Optimal Path constructive algorithms, greedy, math	800	x22524
1699C	The Third Problem combinatorics, constructive algorithms, math	1700	x9372
1699B	Almost Ternary Matrix bitmasks, constructive algorithms, matrices	900	x19136
1699A	The Third Three Number Problem constructive algorithms, math	800	x23610