bitmasks - 题库 - bzoj.org

	ID	题目显示标签隐藏标签	AC / 尝试	难度
	548	P1705F Mark and the Online Exam bitmasks constructive algorithms interactive probabilities *2900	0 / 0	10
	536	P1707F Bugaboo bitmasks constructive algorithms dp number theory *3500	0 / 0	10
	529	P1709E XOR Tree bitmasks data structures dfs and similar dsu greedy trees *2400	0 / 0	9
	528	P1709F Multiset of Strings bitmasks brute force dp fft flows graphs math meet-in-the-middle trees *2500	0 / 0	9
	525	P1710C XOR Triangle bitmasks brute force constructive algorithms dp greedy math *2500	0 / 0	9
	508	P1713F Lost Array bitmasks combinatorics constructive algorithms dp math *2900	0 / 0	10
	497	P1715D 2+ doors 2-sat bitmasks graphs greedy *1900	0 / 0	6
	490	P1716E Swap and Maximum Block bitmasks data structures dfs and similar divide and conquer dp *2500	0 / 0	9
	469	P1720D1 Xor-Subsequence (easy version) bitmasks brute force dp strings trees two pointers *1800	0 / 0	6
	468	P1720D2 Xor-Subsequence (hard version) bitmasks data structures dp strings trees *2400	0 / 0	9
	463	P1721D Maximum AND bitmasks dfs and similar divide and conquer greedy sortings *1800	0 / 0	6
	454	P1722G Even-Odd XOR bitmasks constructive algorithms greedy *1500	0 / 0	5
	450	P1725D Deducing Sortability binary search bitmasks math *2900	0 / 0	10
	448	P1725F Field Photography bitmasks data structures sortings *2100	0 / 0	7
	439	P1726B Mainak and Interesting Sequence bitmasks constructive algorithms math *1100	0 / 0	3
	426	P1728G Illumination binary search bitmasks brute force combinatorics dp math two pointers *2700	0 / 0	10
	413	P1730F Almost Sorted bitmasks data structures dp *2700	0 / 0	10
	410	P1731C Even Subarrays bitmasks brute force hashing math number theory *1700	0 / 0	5
	404	P1732C1 Sheikh (Easy version) binary search bitmasks greedy two pointers *1800	0 / 0	6
	403	P1732C2 Sheikh (Hard Version) binary search bitmasks brute force greedy implementation two pointers *2100	0 / 0	7
	388	P1734F Zeros and Ones bitmasks divide and conquer dp math *2500	0 / 0	9
	356	P1739E Cleaning Robot bitmasks dp *2400	0 / 0	9
	355	P1739F Keyboard Design bitmasks data structures dp string suffix structures strings *2600	0 / 0	10
	339	P1741G Kirill and Company bitmasks brute force dfs and similar dp flows graphs shortest paths *2200	0 / 0	8
	332	P1742G Orray bitmasks brute force greedy math sortings *1500	0 / 0	5
	325	P1743G Antifibonacci Cut bitmasks combinatorics constructive algorithms data structures dp hashing math *3000	0 / 0	10
	306	P1747D Yet Another Problem binary search bitmasks constructive algorithms data structures *1900	0 / 0	6
	301	P1748D ConstructOR bitmasks chinese remainder theorem combinatorics constructive algorithms math number theory *2100	0 / 0	7
	299	P1748F Circular Xor Reversal bitmasks constructive algorithms *3000	0 / 0	10
	256	P1760G SlavicG's Favorite Problem bitmasks dfs and similar graphs *1700	0 / 0	5
	240	P1763A Absolute Maximization bitmasks constructive algorithms greedy math *800	0 / 0	3
	224	P1765A Access Levels bitmasks dsu flows graph matchings *2400	0 / 0	9
	200	P1767E Algebra Flash bitmasks brute force dp graphs math meet-in-the-middle trees *2500	0 / 0	9
	187	P1770F Koxia and Sequence bitmasks combinatorics dp math number theory *3100	0 / 0	10
	179	P1771F Hossam and Range Minimum Query binary search bitmasks data structures hashing probabilities strings trees *2500	0 / 0	9
	172	P1773G Game of Questions bitmasks combinatorics dp fft math probabilities *2800	0 / 0	10
	155	P1775B Gardener and the Array bitmasks constructive algorithms *1300	0 / 0	4
	154	P1775C Interesting Sequence bitmasks math *1600	0 / 0	5
	133	P1777D Score of a Tree bitmasks combinatorics dfs and similar dp math probabilities trees *1900	0 / 0	6
	131	P1777F Comfortably Numb bitmasks data structures divide and conquer strings trees *2400	0 / 0	9
	128	P1778C Flexible String bitmasks brute force strings *1600	0 / 0	5
	126	P1778E The Tree Has Fallen! bitmasks dfs and similar math trees *2500	0 / 0	9
	119	P1779F Xorcerer's Stones bitmasks constructive algorithms dp trees *2500	0 / 0	9
	114	P1780D Bit Guessing Game binary search bitmasks constructive algorithms interactive *1800	0 / 0	6
	112	P1780F Three Chairs bitmasks brute force combinatorics data structures dp number theory sortings *2300	0 / 0	8
	81	P1787E The Harmonization of XOR bitmasks constructive algorithms greedy math *2100	0 / 0	7
	71	P1788F XOR, Tree, and Queries bitmasks constructive algorithms dfs and similar dsu graphs greedy implementation trees *2500	0 / 0	9
	67	P1789D Serval and Shift-Shift-Shift bitmasks brute force constructive algorithms implementation *2200	0 / 0	8
	65	P1789F Serval and Brain Power bitmasks brute force dp greedy implementation strings *2700	0 / 0	10
	60	P1790E Vlad and a Pair of Numbers bitmasks constructive algorithms *1400	0 / 0	4
	46	P1792D Fixed Prefix Permutations binary search bitmasks data structures hashing math sortings *1700	0 / 0	5
	25	P1795G Removal Sequences bitmasks dfs and similar graphs *2700	0 / 0	10
	10	P1799H Tree Cutting bitmasks dfs and similar dp	0 / 0	(无)
	2	P1800F Dasha and Nightmares bitmasks hashing meet-in-the-middle strings	0 / 0	(无)
	3780	P1801A The Very Beautiful Blanket bitmasks constructive algorithms	1 / 2	10
	3767	P1804E Routing bitmasks dp graphs	0 / 0	(无)
	3764	P1804H Code Lock bitmasks dp	0 / 0	(无)
	7798	P1805A We Need the Zero bitmasks brute force	0 / 0	(无)
	6333	P1807G2 Subsequence Addition (Hard Version) bitmasks data structures dp greedy implementation sortings	0 / 0	(无)
	8540	P1815D XOR Counting bitmasks combinatorics dp math *2600	0 / 0	10
	8640	P1826E Walk the Runway bitmasks brute force data structures dp graphs implementation sortings *2400	0 / 0	9
	8627	P1829C Mr bitmasks greedy implementation *800	0 / 0	3
	8622	P1829H Don't Blame Me bitmasks combinatorics dp math *1700	0 / 0	5
	8690	P1835C Twin Clusters bitmasks constructive algorithms math meet-in-the-middle probabilities *2600	0 / 0	10
	8687	P1835F Good Graph bitmasks dfs and similar graph matchings graphs implementation *3500	0 / 0	10
	8672	P1840B Binary Cafe bitmasks combinatorics math *1100	0 / 0	3
	8712	P1842B Tenzing and Books bitmasks greedy math *1100	0 / 0	3
	8706	P1842H Tenzing and Random Real Numbers bitmasks dp graphs math probabilities *3000	0 / 0	10
	8657	P1843C Sum in Binary Tree bitmasks math trees	0 / 0	(无)
	8735	P1844G Tree Weights bitmasks constructive algorithms data structures dfs and similar implementation math matrices number theory trees	0 / 1	10
	8720	P1846G Rudolf and CodeVid-23 bitmasks dp graphs greedy shortest paths	0 / 0	(无)
	8718	P1847B Hamon Odyssey bitmasks greedy two pointers	0 / 0	(无)
	8717	P1847C Vampiric Powers, anyone? bitmasks brute force data structures dp greedy trees	0 / 0	(无)
	8714	P1847F The Boss's Identity binary search bitmasks data structures dfs and similar greedy math sortings	0 / 0	(无)
	8728	P1848F Vika and Wiki binary search bitmasks combinatorics divide and conquer dp math	0 / 0	(无)
	8769	P1849F XOR Partition binary search bitmasks data structures divide and conquer greedy sortings trees	0 / 0	(无)
	8763	P1851F Lisa and the Martians bitmasks data structures greedy sortings strings trees	0 / 0	(无)
	8781	P1854B Earn or Unlock bitmasks brute force dp	0 / 0	(无)
	8784	P1856E2 PermuTree (hard version) bitmasks dfs and similar dp greedy implementation trees	0 / 0	(无)
	8840	P1861F Four Suits binary search bitmasks flows greedy	0 / 0	(无)
	8834	P1862F Magic Will Save the World binary search bitmasks brute force dp	0 / 0	(无)
	8827	P1863F Divide, XOR, and Conquer bitmasks brute force dp	0 / 0	(无)
	8821	P1864C Divisor Chain bitmasks constructive algorithms math number theory	0 / 0	(无)
	8819	P1864E Guess Game bitmasks constructive algorithms data structures games math probabilities sortings strings trees	0 / 0	(无)
	8896	P1867B XOR Palindromes bitmasks constructive algorithms strings	0 / 0	(无)
	8889	P1868B1 Candy Party (Easy Version) bitmasks constructive algorithms graphs greedy implementation math	0 / 0	(无)
	8888	P1868B2 Candy Party (Hard Version) bitmasks constructive algorithms dp greedy implementation math	0 / 0	(无)
	8880	P1870B Friendly Arrays bitmasks greedy math	0 / 0	(无)
	8877	P1870E Another MEX Problem bitmasks brute force dp shortest paths	0 / 0	(无)
	8869	P1872E Data Structures Fan binary search bitmasks data structures dp	0 / 0	(无)
	8965	P1874B Jellyfish and Math bitmasks brute force dfs and similar dp graphs shortest paths	0 / 0	(无)
	8958	P1875C Jellyfish and Green Apple bitmasks greedy math number theory	0 / 0	(无)
	8943	P1878E Iva & Pav binary search bitmasks data structures greedy	0 / 0	(无)
	8941	P1878G wxhtzdy ORO Tree binary search bitmasks brute force data structures dfs and similar implementation trees	0 / 0	(无)
	8937	P1879D Sum of XOR Functions bitmasks combinatorics divide and conquer dp math *1700	0 / 0	5
	8926	P1882B Sets and Union bitmasks brute force constructive algorithms greedy	0 / 0	(无)
	8924	P1882D Tree XOR bitmasks dfs and similar dp greedy trees	0 / 0	(无)
	8917	P1883E Look Back bitmasks greedy	0 / 0	(无)
	8904	P1886E I Wanna be the Team Leader bitmasks constructive algorithms dp greedy math sortings two pointers	0 / 0	(无)
	8970	P1895D XOR Construction bitmasks constructive algorithms data structures math trees	0 / 0	(无)

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