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Problemset

709 problems · filtered by 1 tag

#	Name	Rating↕	Solved↕
1913C	Game with Multiset binary search bitmasks brute force greedy	1300	17.8k
1912K	Kim's Quest bitmasks combinatorics dp	1800	4.4k
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
1906B	Button Pressing bitmasks constructive algorithms hashing	2600	865
1903B	StORage room bitmasks brute force constructive algorithms greedy	1200	15k
1903D1	Maximum And Queries (easy version) binary search bitmasks brute force greedy	1700	7.4k
1903D2	Maximum And Queries (hard version) bitmasks divide and conquer dp greedy	2500	1.1k
1900D	Small GCD bitmasks brute force dp math number theory	2000	5.6k
1895D	XOR Construction bitmasks constructive algorithms data structures math string suffix structures trees	1900	7.2k
1886E	I Wanna be the Team Leader bitmasks constructive algorithms dp greedy math sortings two pointers	2400	1.9k
1883E	Look Back bitmasks greedy	1700	10.1k
1882B	Sets and Union bitmasks brute force constructive algorithms greedy	1300	17.6k
1882D	Tree XOR bitmasks dfs and similar dp greedy trees	1900	7.3k
1879D	Sum of XOR Functions bitmasks combinatorics divide and conquer dp math	1700	11.1k
1878E	Iva & Pav binary search bitmasks data structures greedy	1400	22.3k
1878G	wxhtzdy ORO Tree binary search bitmasks brute force data structures dfs and similar implementation trees	2300	1.5k
1875C	Jellyfish and Green Apple bitmasks greedy math number theory	1400	14.1k
1874B	Jellyfish and Math bitmasks brute force dfs and similar dp graphs shortest paths	2400	1.4k
1872E	Data Structures Fan binary search bitmasks data structures dp	1500	22.5k
1870B	Friendly Arrays bitmasks greedy math	1200	16.5k
1870E	Another MEX Problem bitmasks brute force dp shortest paths	2300	3.1k
1868B1	Candy Party (Easy Version) bitmasks constructive algorithms graphs greedy implementation math	1700	8.4k
1868B2	Candy Party (Hard Version) bitmasks constructive algorithms dp greedy implementation math	2100	2.8k
1867B	XOR Palindromes bitmasks constructive algorithms strings	1100	18.8k
1864C	Divisor Chain bitmasks constructive algorithms math number theory	1300	15.5k
1864E	Guess Game bitmasks data structures games math probabilities sortings strings trees	2100	3.1k
1863F	Divide, XOR, and Conquer bitmasks dp math	2600	1.4k
1862F	Magic Will Save the World binary search bitmasks brute force dp	1800	7.8k
1861F	Four Suits binary search bitmasks flows greedy	3200	338
1856E2	PermuTree (hard version) bitmasks dfs and similar dp fft greedy implementation math trees	2700	1.8k
1854B	Earn or Unlock bitmasks brute force dp	2200	4.4k
1851F	Lisa and the Martians bitmasks greedy math strings trees	1800	7.8k
1849F	XOR Partition binary search bitmasks data structures divide and conquer greedy trees	2700	911
1848F	Vika and Wiki binary search bitmasks combinatorics divide and conquer dp math	2400	2.1k
1847B	Hamon Odyssey bitmasks greedy two pointers	1000	22.5k
1847C	Vampiric Powers, anyone? bitmasks brute force dp greedy	1400	15k
1847F	The Boss's Identity binary search bitmasks data structures dfs and similar greedy math sortings	2500	1.1k
1846G	Rudolf and CodeVid-23 bitmasks dp graphs greedy shortest paths	1900	5.9k
1844G	Tree Weights bitmasks constructive algorithms data structures dfs and similar implementation math matrices number theory trees	3000	1.2k
1843C	Sum in Binary Tree bitmasks combinatorics math trees	800	40.3k
1842B	Tenzing and Books bitmasks greedy math	1100	27.2k
1842H	Tenzing and Random Real Numbers bitmasks dp graphs math probabilities	3000	1.1k
1840B	Binary Cafe bitmasks combinatorics math	1100	25k
1835C	Twin Clusters bitmasks brute force constructive algorithms math probabilities	2600	1.2k
1835F	Good Graph bitmasks dfs and similar graph matchings graphs implementation	3500	347
1829C	Mr. Perfectly Fine bitmasks greedy implementation	800	32.9k
1829H	Don't Blame Me bitmasks combinatorics dp math	1700	11.3k
1826E	Walk the Runway bitmasks brute force data structures dp graphs implementation sortings	2400	2k
1815D	XOR Counting bitmasks combinatorics dp math	2600	1.5k
1807G2	Subsequence Addition (Hard Version) bitmasks dp greedy implementation sortings	1100	29.4k
1805A	We Need the Zero bitmasks brute force	800	45.3k
1804E	Routing bitmasks brute force dfs and similar dp graphs	2400	1.7k
1804H	Code Lock bitmasks dp	3300	276
1801A	The Very Beautiful Blanket bitmasks constructive algorithms	1600	9.9k
1800F	Dasha and Nightmares bitmasks hashing meet-in-the-middle strings	1900	4.9k
1799H	Tree Cutting bitmasks dfs and similar dp	3200	478
1795G	Removal Sequences bitmasks dfs and similar graphs	2700	852
1792D	Fixed Prefix Permutations binary search bitmasks data structures hashing math sortings	1700	8.3k
1790E	Vlad and a Pair of Numbers bitmasks constructive algorithms	1400	17.6k
1789D	Serval and Shift-Shift-Shift bitmasks brute force constructive algorithms implementation	2200	2k
1789F	Serval and Brain Power bitmasks brute force dp greedy implementation strings	2700	1k
1788F	XOR, Tree, and Queries bitmasks constructive algorithms dfs and similar dsu graphs greedy implementation trees	2500	1.2k
1787E	The Harmonization of XOR bitmasks constructive algorithms greedy math	2100	2.8k
1780D	Bit Guessing Game binary search bitmasks constructive algorithms interactive	1800	5.9k
1780F	Three Chairs bitmasks brute force combinatorics data structures dp number theory sortings	2300	2k
1779F	Xorcerer's Stones bitmasks constructive algorithms dp trees	2500	1.5k
1778C	Flexible String bitmasks brute force strings	1600	11.6k
1778E	The Tree Has Fallen! bitmasks dfs and similar math trees	2500	1.2k
1777D	Score of a Tree bitmasks combinatorics dfs and similar dp math probabilities trees	1900	4.9k
1777F	Comfortably Numb bitmasks data structures divide and conquer strings trees	2400	1.5k
1775B	Gardener and the Array bitmasks constructive algorithms	1300	21.9k
1775C	Interesting Sequence bitmasks math	1600	14.9k
1773G	Game of Questions bitmasks combinatorics dp fft math probabilities	2800	560
1771F	Hossam and Range Minimum Query binary search bitmasks data structures hashing probabilities strings trees	2500	1.7k
1770F	Koxia and Sequence bitmasks combinatorics dp math number theory	3100	1k
1767E	Algebra Flash bitmasks brute force dp graphs math meet-in-the-middle trees	2500	1.3k
1765A	Access Levels bitmasks dsu flows graph matchings	2400	880
1763A	Absolute Maximization bitmasks constructive algorithms greedy math	800	17.1k
1760G	SlavicG's Favorite Problem bitmasks dfs and similar graphs	1700	10.7k
1748D	ConstructOR bitmasks chinese remainder theorem combinatorics constructive algorithms math number theory	2100	3.3k
1748F	Circular Xor Reversal bitmasks constructive algorithms	3000	403
1747D	Yet Another Problem binary search bitmasks constructive algorithms data structures	1900	5.7k
1743G	Antifibonacci Cut bitmasks combinatorics constructive algorithms data structures dp hashing math	3000	381
1742G	Orray bitmasks brute force greedy math sortings	1500	13.7k
1741G	Kirill and Company bitmasks brute force dfs and similar dp flows graphs shortest paths	2200	2k
1739E	Cleaning Robot bitmasks dp	2400	1.5k
1739F	Keyboard Design bitmasks data structures dp string suffix structures strings	2600	671
1734F	Zeros and Ones bitmasks divide and conquer dp math	2500	1k
1732C1	Sheikh (Easy version) binary search bitmasks greedy two pointers	1800	7.9k
1732C2	Sheikh (Hard Version) binary search bitmasks brute force greedy implementation two pointers	2100	3.2k
1731C	Even Subarrays bitmasks brute force hashing math number theory	1700	12.5k
1730F	Almost Sorted bitmasks data structures dp	2700	791
1728G	Illumination binary search bitmasks brute force combinatorics dp math two pointers	2700	669
1726B	Mainak and Interesting Sequence bitmasks constructive algorithms math	1100	17.1k
1725D	Deducing Sortability binary search bitmasks math	2900	254
1725F	Field Photography bitmasks data structures sortings	2100	1.2k
1722G	Even-Odd XOR bitmasks constructive algorithms greedy	1500	14.5k
1721D	Maximum AND bitmasks dfs and similar divide and conquer greedy sortings	1800	7.8k
1720D1	Xor-Subsequence (easy version) bitmasks brute force dp strings trees two pointers	1800	6.8k

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