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Problemset

837 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
1784D	Wooden Spoon combinatorics dp	2400	1.4k
1784E	Infinite Game brute force combinatorics dp games probabilities	3100	485
1781F	Bracket Insertion combinatorics dp math trees	2700	1.4k
1780F	Three Chairs bitmasks brute force combinatorics data structures dp number theory sortings	2300	2k
1778D	Flexible String Revisit combinatorics dp math probabilities	2100	3.5k
1777B	Emordnilap combinatorics greedy math	900	19.4k
1777D	Score of a Tree bitmasks combinatorics dfs and similar dp math probabilities trees	1900	4.9k
1776G	Another Wine Tasting Event combinatorics constructive algorithms math strings	2100	2.4k
1774G	Segment Covering brute force combinatorics constructive algorithms data structures dp trees	3200	692
1773D	Dominoes combinatorics flows graph matchings greedy	2600	649
1773G	Game of Questions bitmasks combinatorics dp fft math probabilities	2800	560
1771A	Hossam and Combinatorics combinatorics math sortings	900	25.6k
1770E	Koxia and Tree combinatorics dfs and similar dp dsu math probabilities trees	2400	1.6k
1770F	Koxia and Sequence bitmasks combinatorics dp math number theory	3100	1k
1768E	Partial Sorting combinatorics math number theory	2300	2.4k
1767D	Playoff combinatorics constructive algorithms dp greedy math	1500	11.3k
1765C	Card Guessing combinatorics dp probabilities	2600	594
1764D	Doremy's Pegging Game combinatorics dp math	2000	3.2k
1763D	Valid Bitonic Permutations combinatorics dp implementation math number theory	2200	2.4k
1762C	Binary Strings are Fun combinatorics math	1400	10.2k
1762E	Tree Sum combinatorics math trees	2600	899
1761D	Carry Bit combinatorics math	2100	2.9k
1761F2	Anti-median (Hard Version) combinatorics dp math	3500	109
1758E	Tick, Tock combinatorics dfs and similar dsu graphs	2500	1.1k
1750D	Count GCD combinatorics math number theory	1800	7.6k
1750F	Majority combinatorics dp math strings	2700	1.3k
1750G	Doping combinatorics dp math	3300	407
1749D	Counting Arrays combinatorics dp math number theory	1900	6.4k
1748D	ConstructOR bitmasks chinese remainder theorem combinatorics constructive algorithms math number theory	2100	3.3k
1747E	List Generation combinatorics dp math	2900	701
1743A	Password brute force combinatorics implementation math	800	29.9k
1743G	Antifibonacci Cut bitmasks combinatorics constructive algorithms data structures dp hashing math	3000	381
1740F	Conditional Mix combinatorics dp math	2600	1.2k
1739C	Card Game combinatorics constructive algorithms dp games	1500	10.2k
1738E	Balance Addicts combinatorics dp math two pointers	2300	1.9k
1737E	Ela Goes Hiking combinatorics dp math probabilities	2500	1.1k
1735D	Meta-set brute force combinatorics data structures hashing math	1700	7.1k
1732A	Bestie brute force combinatorics constructive algorithms implementation math number theory	1000	17.8k
1731F	Function Sum brute force combinatorics dp fft math	2500	924
1730E	Maximums and Minimums combinatorics data structures divide and conquer number theory	2700	815
1729G	Cut Substrings combinatorics dp hashing strings two pointers	2100	2.6k
1728G	Illumination binary search bitmasks brute force combinatorics dp math two pointers	2700	669
1726E	Almost Perfect combinatorics fft math	2400	1.8k
1726G	A Certain Magical Party combinatorics data structures greedy sortings	3300	444
1725C	Circular Mirror binary search combinatorics geometry math two pointers	2000	2k
1725E	Electrical Efficiency combinatorics data structures dp math number theory trees	2500	640
1725I	Imitating the Key Tree combinatorics dsu trees	2800	333
1717D	Madoka and The Corruption Scheme combinatorics constructive algorithms greedy math	1900	4.9k
1716F	Bags with Balls combinatorics dp math number theory	2500	1.5k
1715C	Monoblock combinatorics data structures implementation math	1700	10.6k
1713F	Lost Array bitmasks combinatorics constructive algorithms dp math	2900	771
1712E1	LCM Sum (easy version) binary search brute force combinatorics math number theory two pointers	2300	2.5k
1707D	Partial Virtual Trees combinatorics dfs and similar dp math trees	3000	997
1705D	Mark and Lightbulbs combinatorics constructive algorithms greedy math sortings	1800	7.2k
1705E	Mark and Professor Koro binary search bitmasks brute force combinatorics data structures greedy	2300	2.5k
1704H1	Game of AI (easy version) combinatorics constructive algorithms dp fft math	3200	346
1704H2	Game of AI (hard version) combinatorics fft math	3500	119
1701F	Points combinatorics data structures implementation math matrices	2500	1.2k
1699C	The Third Problem combinatorics constructive algorithms math	1700	10.8k
1698E	PermutationForces II brute force combinatorics greedy sortings trees two pointers	2300	1.9k
1697E	Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math	2400	1.5k
1696E	Placing Jinas combinatorics math	2000	5k
1696H	Maximum Product? brute force combinatorics dp greedy implementation math two pointers	3500	215
1691F	K-Set Tree combinatorics dfs and similar dp math trees	2500	1.2k
1687E	Become Big For Me combinatorics constructive algorithms greedy math number theory	3500	323
1679E	Typical Party in Dorm bitmasks combinatorics dp strings	2400	1.5k
1674B	Dictionary combinatorics math	800	29.8k
1674C	Infinite Replacement combinatorics implementation strings	1000	26.6k
1673D	Lost Arithmetic Progression combinatorics math number theory	1900	3.6k
1673E	Power or XOR? bitmasks combinatorics math number theory	2500	850
1671E	Preorder combinatorics divide and conquer dp dsu hashing sortings trees	2100	3.3k
1671F	Permutation Counting brute force combinatorics dp fft math	2700	514
1670F	Jee, You See? bitmasks combinatorics dp	2400	1.3k
1667E	Centroid Probabilities combinatorics dp fft math	3000	938
1666F	Fancy Stack combinatorics dp implementation	2200	1.6k
1663D	Is it rated - 3 *special combinatorics dp math	unrated	1.5k
1662N	Drone Photo combinatorics math sortings	unrated	952
1658B	Marin and Anti-coprime Permutation combinatorics math number theory	800	19.6k
1657E	Star MST combinatorics dp graph matchings math	2200	2.5k
1654H	Three Minimums combinatorics constructive algorithms divide and conquer dp fft math	3500	108
1651E	Sum of Matchings brute force combinatorics constructive algorithms dfs and similar graph matchings greedy math	2600	669
1648A	Weird Sum combinatorics data structures geometry math matrices sortings	1400	19.8k
1648C	Tyler and Strings combinatorics data structures implementation	1900	3.4k
1644E	Expand the Path brute force combinatorics data structures implementation math	1900	3.5k
1644F	Basis combinatorics fft math number theory	2900	511
1641D	Two Arrays bitmasks brute force combinatorics greedy hashing math two pointers	2700	1.6k
1641E	Special Positions combinatorics divide and conquer fft math	3300	365
1630E	Expected Components combinatorics math number theory probabilities	2900	621
1628D1	Game on Sum (Easy Version) combinatorics dp games math	2100	3.8k
1628D2	Game on Sum (Hard Version) combinatorics dp games math	2400	2.7k
1626F	A Random Code Problem combinatorics dp math number theory probabilities	2800	922
1622D	Shuffle combinatorics math two pointers	2000	4.8k
1620G	Subsequences Galore bitmasks combinatorics dp	2400	1.2k
1616H	Keep XOR Low bitmasks combinatorics data structures divide and conquer dp math	3000	1.4k
1615F	LEGOndary Grandmaster combinatorics dp math	2800	1.2k
1614C	Divan and bitwise operations bitmasks combinatorics constructive algorithms dp math	1500	11.4k
1613F	Tree Coloring combinatorics divide and conquer fft	2600	906
1612G	Max Sum Array combinatorics constructive algorithms greedy sortings	2500	1k
1610D	Not Quite Lee combinatorics dp math number theory	2000	3.1k
1608D	Dominoes combinatorics fft graphs math number theory	2400	1.6k

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