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Problemset

114 problems · filtered by 3 tags

#	Name	Rating↕	Solved↕
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
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
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
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
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
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
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
1812D	Trivial Conjecture *special constructive algorithms math number theory	unrated	4.9k
1810B	Candies constructive algorithms math number theory	800	19k
1748D	ConstructOR bitmasks chinese remainder theorem combinatorics constructive algorithms math number theory	2100	3.3k
1737F	Ela and Prime GCD constructive algorithms math number theory	3300	162
1732A	Bestie brute force combinatorics constructive algorithms implementation math number theory	1000	17.8k
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
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
1562B	Scenes From a Memory brute force constructive algorithms implementation math number theory	1000	20.7k
1553G	Common Divisor Graph brute force constructive algorithms dsu graphs hashing math number theory	2700	1.3k
1542B	Plus and Multiply constructive algorithms math number theory	1500	26.9k
1538D	Another Problem About Dividing Numbers constructive algorithms math number theory	1700	15.5k
1521A	Nastia and Nearly Good Numbers constructive algorithms math number theory	1000	42.6k
1521B	Nastia and a Good Array constructive algorithms math number theory	1300	23.1k
1511B	GCD Length constructive algorithms math number theory	1100	24.9k
1485D	Multiples and Power Differences constructive algorithms graphs math number theory	2200	5.7k
1477A	Nezzar and Board constructive algorithms math number theory	1800	6.6k
1474B	Different Divisors binary search constructive algorithms greedy math number theory	1000	42.4k
1469D	Ceil Divisions brute force constructive algorithms math number theory	1700	10.3k
1454D	Number into Sequence constructive algorithms math number theory	1300	22.5k
1427E	Xum bitmasks constructive algorithms math matrices number theory	2500	1.7k
1419E	Decryption constructive algorithms implementation math number theory	2100	3.5k
1404D	Game of Pairs constructive algorithms dfs and similar interactive math number theory	2800	1.3k
1401C	Mere Array constructive algorithms math number theory sortings	1300	27.3k
1389A	LCM Problem constructive algorithms greedy math number theory	800	51.4k
1370B	GCD Compression constructive algorithms math number theory	1100	25.3k
1366D	Two Divisors constructive algorithms math number theory	2000	12.6k
1332B	Composite Coloring brute force constructive algorithms greedy math number theory	1400	19.3k
1266C	Diverse Matrix constructive algorithms greedy math number theory	1400	10.1k
1254B1	Send Boxes to Alice (Easy Version) constructive algorithms greedy math number theory ternary search two pointers	1800	5.1k
1254B2	Send Boxes to Alice (Hard Version) constructive algorithms greedy math number theory ternary search two pointers	2100	3.5k
1242A	Tile Painting constructive algorithms math number theory	1500	13.3k
1178D	Prime Graph constructive algorithms greedy math number theory	1500	8k
1166B	All the Vowels Please constructive algorithms math number theory	1100	12k
1166E	The LCMs Must be Large bitmasks brute force constructive algorithms math number theory	2100	3k
1149A	Prefix Sum Primes constructive algorithms greedy math number theory	1200	18.2k
1148G	Gold Experience constructive algorithms graphs math number theory probabilities	3300	615

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