trees - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	7651	P482E ELCA data structures trees *3200	0 / 0	10
	7638	P486D Valid Sets dfs and similar dp math trees *2100	0 / 0	7
	7632	P487E Tourists data structures dfs and similar graphs trees *3200	1 / 1	10
	7618	P490F Treeland Tour data structures dfs and similar dp trees *2200	0 / 0	8
	7601	P494D Birthday data structures dfs and similar dp trees *2700	0 / 0	10
	7580	P500D New Year Santa Network combinatorics dfs and similar graphs trees *1900	0 / 0	6
	7577	P500G New Year Running number theory trees *3200	0 / 0	10
	7574	P501C Misha and Forest constructive algorithms data structures greedy sortings trees *1500	0 / 0	5
	7570	P504E Misha and LCP on Tree binary search dfs and similar hashing string suffix structures trees *3000	0 / 0	10
	7560	P507C Guess Your Way Out! implementation math trees *1700	0 / 0	5
	7547	P509F Progress Monitoring dp trees *2300	0 / 0	8
	7541	P512D Fox And Travelling dp trees *2900	0 / 0	10
	7502	P516D Drazil and Morning Exercise dfs and similar dp dsu trees two pointers *2800	0 / 0	10
	7482	P519E A and B and Lecture Rooms binary search data structures dfs and similar dp trees *2100	0 / 0	7
	7474	P522A Reposts special problem dfs and similar dp graphs trees 1200	0 / 0	4
	7451	P526G Spiders Evil Plan greedy trees *3300	0 / 0	10
	7422	P533A Berland Miners binary search data structures dfs and similar greedy trees *3000	0 / 0	10
	7420	P533B Work Group dfs and similar dp graphs strings trees *2000	0 / 0	7
	7403	P536E Tavas on the Path data structures divide and conquer trees *3100	0 / 0	10
	7398	P538E Demiurges Play Again dfs and similar dp math trees *2200	0 / 0	8
	7390	P540E Infinite Inversions binary search data structures implementation sortings trees *2100	0 / 0	7
	7380	P543D Road Improvement dp trees *2300	0 / 0	8
	7362	P547E Mike and Friends data structures string suffix structures strings trees *2800	0 / 0	10
	7325	P555E Case of Computer Network dfs and similar graphs trees *2800	0 / 0	10
	7318	P557E Ann and Half-Palindrome data structures dp graphs string suffix structures strings trees *2300	0 / 0	8
	7305	P566A Matching Names dfs and similar strings trees *2300	0 / 0	8
	7303	P566C Logistical Questions dfs and similar divide and conquer trees *3000	0 / 0	10
	7301	P566E Restoring Map bitmasks constructive algorithms trees *3200	0 / 0	10
	7282	P570D Tree Requests binary search bitmasks constructive algorithms dfs and similar graphs trees *2200	0 / 0	8
	7277	P571D Campus binary search data structures dsu trees *3100	0 / 0	10
	7271	P573C Bear and Drawing constructive algorithms dfs and similar trees *2300	0 / 0	8
	7265	P575B Bribes dfs and similar graphs trees *2200	0 / 0	8
	7256	P576B Invariance of Tree constructive algorithms dfs and similar greedy trees *2100	0 / 0	7
	7245	P578F Mirror Box matrices trees *3200	0 / 0	10
	7240	P580C Kefa and Park dfs and similar graphs trees *1500	0 / 0	5
	7232	P581F Zublicanes and Mumocrates dp trees two pointers *2400	0 / 0	9
	7209	P587C Duff in the Army data structures trees *2200	0 / 0	8
	7193	P592D Super M dfs and similar dp graphs trees *2200	0 / 0	8
	7188	P593D Happy Tree Party data structures dfs and similar graphs math trees *2400	0 / 0	9
	7161	P599E Sandy and Nuts bitmasks dp trees *2600	0 / 0	10
	7156	P600E Lomsat gelral data structures dfs and similar dsu trees *2300	1 / 3	8
	7151	P601D Acyclic Organic Compounds data structures dfs and similar dsu hashing strings trees *2400	0 / 0	9
	7143	P603E Pastoral Oddities data structures divide and conquer dsu math trees *3000	0 / 0	10
	7130	P607D Power Tree data structures trees *2600	0 / 0	10
	7122	P609E Minimum spanning tree for each edge data structures dfs and similar dsu graphs trees *2100	1 / 1	7
	7098	P613D Kingdom and its Cities dfs and similar divide and conquer dp graphs sortings trees *2800	1 / 4	10
	7092	P615C Running Track dp greedy strings trees *2000	0 / 0	7
	7075	P618D Hamiltonian Spanning Tree dfs and similar dp graph matchings greedy trees *2200	0 / 0	8
	7067	P620E New Year Tree bitmasks data structures trees *2100	0 / 0	7
	7066	P620F Xors on Segments data structures strings trees *2800	0 / 0	10
	7056	P622E Ants in Leaves dfs and similar greedy sortings trees *2200	0 / 0	8
	7032	P627D Preorder Test binary search dfs and similar dp graphs greedy trees *2600	0 / 0	10
	7030	P627F Island Puzzle dfs and similar dsu graphs trees *3400	0 / 0	10
	7019	P629E Famil Door and Roads combinatorics data structures dfs and similar dp probabilities trees *2300	0 / 0	8
	6990	P632F Magic Matrix brute force divide and conquer graphs matrices trees *2400	0 / 0	9
	6984	P633F The Chocolate Spree dfs and similar dp graphs trees *2600	0 / 0	10
	6973	P638C Road Improvement special problem dfs and similar graphs greedy trees 1800	0 / 0	6
	6970	P639B Bear and Forgotten Tree 3 constructive algorithms graphs trees *1600	0 / 0	5
	6966	P639F Bear and Chemistry data structures dfs and similar graphs trees *3300	0 / 0	10
	6954	P643E Bear and Destroying Subtrees dp math probabilities trees *2700	0 / 0	10
	6937	P650E Clockwork Bomb data structures dfs and similar dsu greedy trees *3200	0 / 0	10
	6930	P652E Pursuit For Artifacts dfs and similar dsu graphs trees *2300	1 / 1	8
	6924	P653E Bear and Forgotten Tree 2 dfs and similar dsu graphs trees *2400	0 / 0	9
	6870	P665E Beautiful Subarrays data structures divide and conquer strings trees *2100	0 / 0	7
	6841	P675D Tree Construction data structures trees *1800	0 / 0	6
	6813	P681D Gifts by the List constructive algorithms dfs and similar graphs trees *2000	0 / 0	7
	6809	P682C Alyona and the Tree dfs and similar dp graphs trees *1600	0 / 0	5
	6795	P685B Kay and Snowflake data structures dfs and similar dp trees *1900	0 / 0	6
	6770	P690C2 Brain Network (medium) dfs and similar graphs trees *1500	0 / 0	5
	6769	P690C3 Brain Network (hard) trees *2200	0 / 0	8
	6762	P690F2 Tree of Life (medium) constructive algorithms hashing trees *2700	0 / 0	10
	6761	P690F3 Tree of Life (hard) trees *3200	0 / 0	10
	6754	P696A Lorenzo Von Matterhorn brute force data structures implementation trees *1500	0 / 0	5
	6753	P696B Puzzles dfs and similar math probabilities trees *1700	0 / 0	5
	6750	P696E ...Wait for it... data structures dsu trees *3000	0 / 0	10
	6745	P698B Fix a Tree constructive algorithms dfs and similar dsu graphs trees *1700	0 / 0	5
	6737	P700B Connecting Universities dfs and similar dp graphs trees *1800	0 / 0	6
	6715	P704E Iron Man data structures geometry trees *3300	0 / 0	10
	6709	P706D Vasiliy's Multiset binary search bitmasks data structures trees *1800	0 / 0	6
	6700	P708C Centroids data structures dfs and similar dp graphs greedy trees *2300	0 / 0	8
	6670	P715C Digit Tree dfs and similar divide and conquer dsu trees *2700	0 / 0	10
	6654	P718D Andrew and Chemistry dp hashing trees *2900	0 / 0	10
	6636	P722D Generating Sets binary search data structures dfs and similar greedy strings trees *1900	0 / 0	6
	6622	P724F Uniformly Branched Trees combinatorics dp trees *2700	0 / 0	10
	6621	P724G Xor-matic Number of the Graph bitmasks graphs math number theory trees *2600	0 / 0	10
	6572	P733F Drivers Dissatisfaction data structures dsu graphs trees *2200	0 / 0	8
	6567	P734E Anton and Tree dfs and similar dp trees *2100	1 / 1	7
	6561	P735E Ostap and Tree dp trees *2500	0 / 0	9
	6555	P739B Alyona and a tree binary search data structures dfs and similar graphs trees *1900	0 / 0	6
	6546	P741D Arpa’s letter-marked tree and Mehrdad’s Dokhtar-kosh paths data structures dfs and similar trees *2900	0 / 0	10
	6539	P743D Chloe and pleasant prizes dfs and similar dp graphs trees *1800	0 / 0	6
	6524	P746G New Roads constructive algorithms graphs trees *2100	0 / 0	7
	6512	P748F Santa Clauses and a Soccer Championship constructive algorithms dfs and similar graphs trees *2300	0 / 0	8
	6501	P750F New Year and Finding Roots constructive algorithms implementation interactive trees *2800	0 / 0	10
	6491	P754E Dasha and cyclic table bitmasks brute force fft strings trees *2600	0 / 0	10
	6488	P755C PolandBall and Forest dfs and similar dsu graphs interactive trees *1300	0 / 0	4
	6471	P757G Can Bash Save the Day? data structures divide and conquer graphs trees *3400	0 / 0	10
	6466	P758E Broken Tree dfs and similar dp graphs greedy trees *2600	0 / 0	10
	6458	P761E Dasha and Puzzle constructive algorithms dfs and similar graphs greedy trees *2000	0 / 0	7
	6451	P762F Tree nesting combinatorics graphs trees *2800	0 / 0	10

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