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Problemset

162 problems · filtered by 2 tags

#	Name	Rating↕	Solved↕
2247A	Zero Sum constructive algorithms dp number theory	unrated	17.7k
2246B	ezraft and Array constructive algorithms number theory	unrated	15.2k
2244C	Stepan and Permutation constructive algorithms dfs and similar dsu greedy math number theory sortings	unrated	15.6k
2244D	Yaroslav and Productivity constructive algorithms dp greedy math number theory	unrated	11.4k
2242E	Product of Closures bitmasks brute force constructive algorithms greedy implementation math number theory	2200	1.4k
2237G	Send GCDs communication constructive algorithms interactive math number theory	2900	416
2231F	Quadratic Jumps brute force constructive algorithms greedy math number theory	2600	787
2219A	Grid L brute force constructive algorithms math number theory	1400	10.7k
2218D	The 67th OEIS Problem constructive algorithms greedy math number theory	1100	21.6k
2210A	A Simple Sequence constructive algorithms dp greedy number theory	800	24.5k
2210E	Binary Strings are Simple? constructive algorithms implementation interactive number theory	2700	369
2180C	XOR-factorization bitmasks constructive algorithms dp greedy number theory	1900	6.7k
2179F	Blackslex and Another RGB Walking communication constructive algorithms graphs interactive number theory trees	2000	2.9k
2173C	Kanade's Perfect Multiples brute force constructive algorithms greedy number theory	1400	13.2k
2171E	Anisphia Wynn Palettia and Good Permutations constructive algorithms greedy number theory	2000	3.8k
2158F1	Distinct GCDs (Easy Version) constructive algorithms graphs math number theory	2600	450
2158F2	Distinct GCDs (Hard Version) combinatorics constructive algorithms graphs math number theory	3000	287
2144A	Cut the Array brute force constructive algorithms math number theory	800	22.3k
2140B	Another Divisibility Problem constructive algorithms math number theory	900	23.2k
2138E1	Determinant Construction (Easy Version) brute force constructive algorithms math matrices number theory	3100	270
2138E2	Determinant Construction (Hard Version) brute force constructive algorithms math matrices number theory	3100	197
2137B	Fun Permutation constructive algorithms math number theory	900	27.4k
2134B	Add 0 or K constructive algorithms math number theory	1200	21.9k
2131H	Sea, You & copriMe brute force constructive algorithms graphs greedy math number theory	2600	909
2124C	Subset Multiplication constructive algorithms greedy math number theory	1300	16.3k
2123F	Minimize Fixed Points constructive algorithms number theory	1700	10.1k
2115A	Gellyfish and Flaming Peony constructive algorithms dp math number theory	1500	16.5k
2114G	Build an Array brute force constructive algorithms dp greedy math number theory	2200	2.1k
2109C1	Hacking Numbers (Easy Version) bitmasks constructive algorithms interactive math number theory	1500	11.8k
2109C2	Hacking Numbers (Medium Version) constructive algorithms interactive math number theory	1700	8.9k
2109C3	Hacking Numbers (Hard Version) constructive algorithms interactive math number theory	2600	3.3k
2092F	Andryusha and CCB brute force constructive algorithms greedy math number theory strings	2900	438
2091G	Gleb and Boating brute force constructive algorithms data structures dp graphs greedy math number theory shortest paths	2300	1.6k
2089A	Simple Permutation constructive algorithms number theory	1700	7.4k
2085E	Serval and Modulo constructive algorithms math number theory	2200	3.2k
2081D	MST in Modulo Graph constructive algorithms dsu graphs greedy math number theory sortings trees	2600	1.2k
2072F	Goodbye, Banker Life 2-sat bitmasks combinatorics constructive algorithms fft math number theory	1700	8.7k
2040D	Non Prime Tree brute force constructive algorithms dfs and similar greedy number theory trees two pointers	1900	5.9k
2039A	Shohag Loves Mod constructive algorithms number theory	800	18.3k
2039D	Shohag Loves GCD constructive algorithms greedy math number theory	1700	7.2k
2037C	Superultra's Favorite Permutation constructive algorithms greedy math number theory	1000	26k
2036G	Library of Magic binary search constructive algorithms divide and conquer interactive math number theory	2200	1.7k
2035B	Everyone Loves Tres constructive algorithms greedy math number theory	900	20.9k
2031C	Penchick and BBQ Buns constructive algorithms math number theory	1300	16k
2029E	Common Generator brute force constructive algorithms math number theory	2100	3.6k
1998B	Minimize Equal Sum Subarrays constructive algorithms math number theory	1000	28.5k
1995C	Squaring brute force constructive algorithms greedy implementation math number theory	1800	10.4k
1994D	Funny Game constructive algorithms dsu graphs greedy math number theory trees	1900	7.7k
1994H	Fortnite combinatorics constructive algorithms games greedy hashing interactive math number theory strings	3500	779
1993F1	Dyn-scripted Robot (Easy Version) brute force chinese remainder theorem constructive algorithms math number theory	2400	1.2k
1991D	Prime XOR Coloring bitmasks constructive algorithms graphs greedy math number theory	1900	8k
1981D	Turtle and Multiplication constructive algorithms dfs and similar graphs number theory	2400	2.2k
1979C	Earning on Bets binary search combinatorics constructive algorithms number theory	1200	22.5k
1968C	Assembly via Remainders constructive algorithms number theory	1000	29.7k
1965B	Missing Subsequence Sum bitmasks constructive algorithms greedy number theory	1800	8.3k
1934E	Weird LCM Operations brute force constructive algorithms number theory	3000	379
1933D	Turtle Tenacity: Continual Mods constructive algorithms greedy math number theory sortings	1200	23.9k
1928E	Modular Sequence brute force constructive algorithms dp graphs greedy math number theory	2300	2.3k
1916A	2023 constructive algorithms implementation math number theory	800	28.5k
1916B	Two Divisors constructive algorithms math number theory	1000	32.8k
1909B	Make Almost Equal With Mod bitmasks constructive algorithms math number theory	1200	33.3k
1909E	Multiple Lamps bitmasks brute force constructive algorithms math number theory	2400	1.7k
1902C	Insert and Equalize brute force constructive algorithms greedy math number theory	1300	17.5k
1882E1	Two Permutations (Easy Version) brute force constructive algorithms greedy number theory	2400	1.3k
1864C	Divisor Chain bitmasks constructive algorithms math number theory	1300	15.5k
1859A	United We Stand constructive algorithms math number theory	800	58.4k
1858C	Yet Another Permutation Problem constructive algorithms greedy math number theory	1000	25.8k
1845A	Forbidden Integer constructive algorithms implementation math number theory	800	51.1k
1844D	Row Major constructive algorithms greedy math number theory strings	1400	14k
1844G	Tree Weights bitmasks constructive algorithms data structures dfs and similar implementation math matrices number theory trees	3000	1.2k
1838C	No Prime Differences constructive algorithms math number theory	1400	17.6k
1816A	Ian Visits Mary constructive algorithms geometry number theory	800	19k
1812D	Trivial Conjecture *special constructive algorithms math number theory	unrated	4.9k
1810B	Candies constructive algorithms math number theory	800	19k
1762B	Make Array Good constructive algorithms implementation number theory sortings	1100	18.7k
1762D	GCD Queries constructive algorithms interactive number theory	2100	4.5k
1748D	ConstructOR bitmasks chinese remainder theorem combinatorics constructive algorithms math number theory	2100	3.3k
1740A	Factorise N+M constructive algorithms number theory	800	23.4k
1737F	Ela and Prime GCD constructive algorithms math number theory	3300	162
1734E	Rectangular Congruence constructive algorithms number theory	2100	3.3k
1732A	Bestie brute force combinatorics constructive algorithms implementation math number theory	1000	17.8k
1713D	Tournament Countdown constructive algorithms greedy interactive number theory probabilities	1800	6.3k
1712B	Woeful Permutation constructive algorithms greedy number theory	800	22.5k
1707F	Bugaboo bitmasks constructive algorithms dp number theory	3500	186
1706D1	Chopping Carrots (Easy Version) binary search brute force constructive algorithms greedy number theory	1700	7.8k
1706D2	Chopping Carrots (Hard Version) brute force constructive algorithms data structures dp greedy math number theory two pointers	2400	2k
1702F	Equate Multisets constructive algorithms data structures greedy math number theory	1700	9.6k
1687E	Become Big For Me combinatorics constructive algorithms greedy math number theory	3500	323
1684G	Euclid Guess constructive algorithms flows graph matchings math number theory	2800	818
1665D	GCD Guess bitmasks chinese remainder theorem constructive algorithms games interactive math number theory	2000	4.8k
1656C	Make Equal With Mod constructive algorithms math number theory sortings	1200	21.2k
1656D	K-good constructive algorithms math number theory	1900	7.6k
1647D	Madoka and the Best School in Russia constructive algorithms dp math number theory	1900	5.7k
1630D	Flipping Range constructive algorithms dp greedy number theory	2400	2.1k
1627C	Not Assigning constructive algorithms dfs and similar number theory trees	1400	16.4k
1622F	Quadratic Set constructive algorithms hashing math number theory	2900	942
1617B	GCD Problem brute force constructive algorithms math number theory	900	27.2k
1603A	Di-visible Confusion constructive algorithms math number theory	1300	17.9k
1603B	Moderate Modular Mode constructive algorithms math number theory	1600	15.2k
1566H	Xor-quiz constructive algorithms dp interactive math number theory	3200	177

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