trees - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	9950	P1851G Vlad and the Mountains binary search data structures dsu graphs implementation sortings trees two pointers	0 / 0	(None)
	9999	P1854D Michael and Hotel binary search interactive trees *3000	0 / 0	10
	9990	P1856E1 PermuTree (easy version) dfs and similar dp trees *1800	0 / 0	6
	9989	P1856E2 PermuTree (hard version) bitmasks dfs and similar dp fft greedy implementation math trees *2700	0 / 0	10
	9985	P1857D Strong Vertices math sortings trees *1300	0 / 0	4
	9982	P1857G Counting Graphs combinatorics divide and conquer dsu graphs greedy sortings trees *2000	0 / 0	7
	9977	P1858E1 Rollbacks (Easy Version) brute force data structures dfs and similar trees *2500	0 / 0	9
	9976	P1858E2 Rollbacks (Hard Version) data structures interactive trees *2600	0 / 0	10
	9970	P1859F Teleportation in Byteland data structures dfs and similar divide and conquer graphs shortest paths trees *3200	0 / 0	10
	10045	P1861C Queries for the Array data structures dfs and similar implementation strings trees	9 / 31	7
	10027	P1863H Goldberg Machine 3 dp trees	0 / 0	(None)
	10026	P1863I Redundant Routes constructive algorithms dp trees	0 / 0	(None)
	10021	P1864E Guess Game bitmasks data structures games math probabilities sortings strings trees	0 / 0	(None)
	10006	P1866K Keen Tree Calculation binary search geometry trees	0 / 0	(None)
	10060	P1868C Travel Plan combinatorics dp implementation math trees	0 / 0	(None)
	10059	P1868D Flower-like Pseudotree constructive algorithms graphs greedy implementation trees	0 / 0	(None)
	10123	P1870H Standard Graph Problem data structures graphs greedy trees *3500	0 / 0	10
	10115	P1873H Mad City dfs and similar dsu games graphs shortest paths trees *1700	0 / 0	5
	10102	P1876C Autosynthesis constructive algorithms dfs and similar dp graphs trees	0 / 0	(None)
	10100	P1876E Ball-Stackable constructive algorithms data structures dp trees	0 / 0	(None)
	10098	P1876G Clubstep binary search brute force data structures greedy trees	0 / 0	(None)
	10089	P1878G wxhtzdy ORO Tree binary search bitmasks brute force data structures dfs and similar implementation trees	0 / 0	(None)
	10084	P1879E Interactive Game with Coloring brute force constructive algorithms dfs and similar graphs implementation interactive trees *2400	0 / 0	9
	10165	P1881F Minimum Maximum Distance dfs and similar dp graphs shortest paths trees	0 / 0	(None)
	10079	P1882D Tree XOR bitmasks dfs and similar dp greedy trees	0 / 0	(None)
	10148	P1887D Split binary search data structures divide and conquer dsu math trees two pointers	0 / 0	(None)
	10141	P1889D Game of Stacks brute force dfs and similar graphs implementation trees	0 / 0	(None)
	10140	P1889E Doremy's Swapping Trees dfs and similar graphs trees	0 / 0	(None)
	10139	P1889F Doremy's Average Tree data structures dp greedy trees	0 / 0	(None)
	10131	P1891F A Growing Tree data structures dfs and similar trees	0 / 0	(None)
	10174	P1895D XOR Construction bitmasks constructive algorithms data structures math string suffix structures trees *1900	0 / 0	6
	10198	P1899F Alex's whims constructive algorithms graphs greedy shortest paths trees *1600	0 / 0	5
	10197	P1899G Unusual Entertainment data structures dfs and similar dsu shortest paths sortings trees two pointers *1900	0 / 0	6
	10194	P1900C Anji's Binary Tree dfs and similar dp shortest paths trees *1300	0 / 0	4
	10186	P1901E Compressed Tree dfs and similar dp graphs greedy sortings trees *2200	0 / 0	8
	10301	P1910F Build Railway Stations special problem greedy trees 2000	0 / 0	7
	10236	P1913D Array Collapse data structures divide and conquer dp trees *2100	0 / 0	7
	10227	P1914F Programming Competition dfs and similar dp graph matchings greedy trees *1900	0 / 0	6
	10226	P1914G1 Light Bulbs (Easy Version) brute force combinatorics dfs and similar dp dsu graphs math trees *2100	0 / 0	7
	10282	P1916E Happy Life in University data structures dfs and similar greedy trees *2300	0 / 0	8
	10280	P1916G Optimizations From Chelsu divide and conquer dp number theory trees *3500	0 / 0	10
	10219	P1917F Construct Tree bitmasks constructive algorithms dp trees *2500	0 / 0	9
	10342	P1918F Caterpillar on a Tree dfs and similar graphs greedy implementation sortings trees *2500	0 / 0	9
	10274	P1919D 01 Tree constructive algorithms data structures dsu greedy sortings trees *2100	0 / 0	7
	10270	P1919G Tree LGM constructive algorithms divide and conquer games trees *3500	0 / 2	10
	10269	P1919H Tree Diameter interactive trees *3500	0 / 0	10
	10262	P1920F2 Smooth Sailing (Hard Version) binary search data structures dsu geometry graphs trees *3000	0 / 0	10
	10326	P1927F Microcycle data structures dfs and similar dsu graphs greedy implementation sortings trees	0 / 0	(None)
	10436	P1929D Sasha and a Walk in the City combinatorics dp math trees *1900	0 / 0	6
	10435	P1929E Sasha and the Happy Tree Cutting bitmasks brute force dfs and similar dp graphs greedy math trees *2300	0 / 0	8
	10434	P1929F Sasha and the Wedding Binary Search Tree brute force combinatorics data structures dfs and similar math trees *2300	0 / 0	8
	10426	P1930G Prefix Max Set Counting data structures dp trees *3100	0 / 0	10
	10425	P1930H Interactive Mex Tree constructive algorithms dfs and similar interactive trees *3300	0 / 0	10
	10391	P1935F Andrey's Tree binary search constructive algorithms data structures dfs and similar dsu greedy implementation trees *2800	0 / 0	10
	10522	P1942H Farmer John's Favorite Intern data structures dp flows trees	0 / 0	(None)
	10472	P1943C Tree Compass constructive algorithms dfs and similar greedy trees *2300	0 / 0	8
	10454	P1946C Tree Cutting binary search dp greedy implementation trees *1600	0 / 0	5
	10448	P1949C Annual Ants' Gathering dfs and similar greedy trees	0 / 0	(None)
	10445	P1949F Dating greedy sortings trees	0 / 0	(None)
	10441	P1949J Amanda the Amoeba graphs implementation trees two pointers	0 / 0	(None)
	10516	P1950F 0, 1, 2, Tree! bitmasks brute force greedy implementation trees	0 / 0	(None)
	10507	P1951H Thanos Snap binary search dp games greedy trees	0 / 0	(None)
	10619	P1967C Fenwick Tree bitmasks brute force combinatorics data structures dp math trees *2300	0 / 0	8
	10599	P1970A2 Balanced Unshuffle (Medium) brute force constructive algorithms trees *2400	0 / 0	9
	10598	P1970A3 Balanced Unshuffle (Hard) constructive algorithms trees *2400	0 / 0	9
	10593	P1970C2 Game on Tree (Medium) dfs and similar dp games trees *1700	0 / 0	5
	10592	P1970C3 Game on Tree (Hard) dfs and similar dp games trees *1900	0 / 0	6
	10582	P1970G1 Min-Fund Prison (Easy) dfs and similar trees *1900	0 / 0	6
	10581	P1970G2 Min-Fund Prison (Medium) brute force dfs and similar dp graphs trees *2200	0 / 0	8
	10580	P1970G3 Min-Fund Prison (Hard) bitmasks dfs and similar dp graphs trees *2400	0 / 0	9
	10553	P1975D Paint the Tree brute force dfs and similar dp greedy shortest paths trees *1700	0 / 0	5
	10552	P1975E Chain Queries binary search data structures dfs and similar implementation trees *2100	0 / 0	7
	10543	P1976E Splittable Permutations combinatorics data structures dfs and similar greedy math trees	0 / 0	(None)
	10542	P1976F Remove Bridges data structures dfs and similar dp greedy sortings trees	0 / 0	(None)
	10679	P1980G Yasya and the Mysterious Tree bitmasks data structures dfs and similar graphs greedy strings trees *2300	0 / 0	8
	10531	P1981F Turtle and Paths on a Tree data structures dp trees	0 / 0	(None)
	10756	P1983G Your Loss bitmasks brute force dp trees *3000	0 / 0	10
	10667	P1984E Shuffle dp greedy trees *2400	0 / 0	9
	10649	P1986F Non-academic Problem dfs and similar graphs trees *1900	0 / 0	6
	10642	P1987E Wonderful Tree! brute force data structures dfs and similar dsu greedy trees *2000	0 / 0	7
	10639	P1987G1 Spinning Round (Easy Version) divide and conquer dp trees *2900	0 / 0	10
	10638	P1987G2 Spinning Round (Hard Version) divide and conquer dp trees *3500	0 / 0	10
	10752	P1988D The Omnipotent Monster Killer brute force dfs and similar dp trees *2000	0 / 0	7
	10745	P1990E1 Catch the Mole(Easy Version) binary search data structures dfs and similar interactive trees *2500	0 / 0	9
	10744	P1990E2 Catch the Mole(Hard Version) binary search data structures dfs and similar divide and conquer interactive trees *2600	0 / 0	10
	10723	P1994D Funny Game constructive algorithms dsu graphs greedy math number theory trees *1900	0 / 0	6
	10722	P1994E Wooden Game bitmasks greedy math trees *2000	0 / 0	7
	10721	P1994F Stardew Valley constructive algorithms dfs and similar graphs trees *2500	0 / 0	9
	10701	P1997D Maximize the Root binary search dfs and similar dp greedy trees	0 / 0	(None)

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