dsu - Problem Set - HFOJ

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	9742	P6E Exposition binary search data structures dsu trees two pointers *1900	0 / 0	6
	9727	P9E Interesting Graph and Apples dfs and similar dsu graphs *2300	0 / 0	8
	9707	P13E Holes data structures dsu *2700	1 / 4	10
	9690	P17B Hierarchy dfs and similar dsu greedy shortest paths *1500	0 / 0	5
	9677	P19E Fairy dfs and similar divide and conquer dsu *2900	0 / 0	10
	9651	P25D Roads not only in Berland dsu graphs trees *1900	0 / 0	6
	9641	P27D Ring Road 2 2-sat dfs and similar dsu graphs *2200	0 / 0	8
	9638	P28B pSort dfs and similar dsu graphs *1600	0 / 0	5
	9595	P36E Two Paths constructive algorithms dsu graphs implementation *2600	0 / 0	10
	9539	P45B School dp dsu *2200	0 / 0	8
	9525	P46F Hercule Poirot Problem dsu graphs *2300	0 / 0	8
	9455	P60B Serial Time! dfs and similar dsu *1400	0 / 0	4
	9453	P60D Savior brute force dsu math *2500	0 / 0	9
	9375	P74C Chessboard Billiard dfs and similar dsu graphs number theory *2100	0 / 0	7
	9367	P76A Gift dsu graphs sortings trees *2200	0 / 0	8
	9359	P77C Beavermuncher-0xFF dfs and similar dp dsu greedy trees *2100	0 / 0	7
	9340	P81E Pairs dfs and similar dp dsu graphs implementation trees *2700	0 / 0	10
	9323	P85E Guard Towers binary search dsu geometry graphs sortings *2600	0 / 0	10
	9314	P87D Beautiful Road dfs and similar dp dsu graphs implementation sortings trees *2300	0 / 0	8
	9301	P91C Ski Base combinatorics dsu graphs *2300	0 / 0	8
	9285	P95E Lucky Country dp dsu graphs *2500	0 / 0	9
	9278	P97E Leaders dfs and similar dsu graphs trees *2200	0 / 0	8
	9252	P103B Cthulhu dfs and similar dsu graphs *1500	0 / 0	5
	9244	P105D Entertaining Geodetics brute force dsu implementation *2700	0 / 0	10
	9228	P109C Lucky Tree dp dsu trees *1900	0 / 0	6
	9221	P111C Petya and Spiders bitmasks dp dsu *2100	0 / 0	7
	9089	P141E Clearing Up constructive algorithms dp dsu graphs *2300	0 / 0	8
	9013	P160D Edges in MST dfs and similar dsu graphs sortings *2300	0 / 0	8
	8983	P165D Beard Graph data structures dsu trees *2100	0 / 0	7
	8931	P177C1 Party dfs and similar dsu graphs *1500	0 / 0	5
	8930	P177C2 Party brute force dfs and similar dsu graphs *1500	0 / 0	5
	8876	P187C Weak Memory dfs and similar dsu *2000	0 / 0	7
	8859	P190E Counter Attack data structures dsu graphs hashing sortings *2100	0 / 0	7
	8836	P195E Building Forest data structures dsu graphs *2000	0 / 0	7
	8831	P196E Opening Portals dsu graphs shortest paths *2600	0 / 0	10
	8740	P209C Trails and Glades constructive algorithms dsu graphs greedy *2400	0 / 0	9
	8736	P212D Cutting a Fence binary search data structures dsu *2500	0 / 0	9
	8717	P217A Ice Skating brute force dfs and similar dsu graphs *1200	0 / 0	4
	8713	P217E Alien DNA data structures dsu trees *2800	0 / 0	10
	8670	P228E The Road to Berland is Paved With Good Intentions 2-sat dfs and similar dsu graphs *1900	0 / 0	6
	8538	P260D Black and White Tree constructive algorithms dsu graphs greedy trees *2100	0 / 0	7
	8473	P277A Learning Languages dfs and similar dsu *1400	0 / 0	4
	8409	P292D Connected Components data structures dfs and similar dp dsu *1900	1 / 1	6
	8337	P313E Ilya and Two Numbers constructive algorithms data structures dsu greedy *2300	0 / 0	8
	8284	P325D Reclamation dsu *2900	0 / 0	10
	8283	P325E The Red Button combinatorics dfs and similar dsu graphs greedy *2800	0 / 0	10
	8157	P356A Knight Tournament data structures dsu *1500	0 / 0	5
	8146	P358E Dima and Kicks brute force dsu graphs implementation *2300	0 / 0	8
	8130	P362D Fools and Foolproof Roads data structures dfs and similar dsu graphs greedy *2100	0 / 0	7
	8113	P366D Dima and Trap Graph binary search data structures dfs and similar dsu shortest paths two pointers *2000	0 / 0	7
	8091	P371D Vessels data structures dsu implementation trees *1800	0 / 0	6
	8078	P374E Inna and Babies binary search data structures dsu geometry implementation *2600	0 / 0	10
	7970	P400D Dima and Bacteria dsu graphs shortest paths *2000	0 / 0	7
	7930	P409H A + B Strikes Back special problem brute force constructive algorithms dsu implementation 1500	0 / 0	5
	7852	P433D Nanami's Digital Board dsu implementation *2000	0 / 0	7
	7841	P436C Dungeons and Candies dsu graphs greedy trees *1800	0 / 0	6
	7834	P437D The Child and Zoo dsu sortings *1900	0 / 0	6
	7818	P441D Valera and Swaps constructive algorithms dsu graphs implementation math string suffix structures *2100	0 / 0	7
	7805	P444E DZY Loves Planting binary search dsu trees *2700	0 / 0	10
	7803	P445B DZY Loves Chemistry dfs and similar dsu greedy *1400	0 / 0	4
	7774	P452E Three strings data structures dsu string suffix structures strings *2400	0 / 0	9
	7763	P455C Civilization dfs and similar dp dsu ternary search trees *2100	0 / 0	7
	7739	P461D Appleman and Complicated Task dsu math *2800	0 / 0	10
	7719	P466E Information Graph dfs and similar dsu graphs trees *2100	0 / 0	7
	7712	P468B Two Sets 2-sat dfs and similar dsu graph matchings greedy *2000	0 / 0	7
	7694	P471E MUH and Lots and Lots of Segments data structures dsu *2700	0 / 0	10
	7690	P472D Design Tutorial: Inverse the Problem dfs and similar dsu shortest paths trees *1900	1 / 1	6
	7622	P490B Queue dsu implementation *1500	0 / 0	5
	7582	P500B New Year Permutation dfs and similar dsu graphs greedy math sortings *1600	0 / 0	5
	7579	P500E New Year Domino data structures dp dsu *2300	0 / 0	8
	7575	P501B Misha and Changing Handles data structures dsu strings *1100	0 / 0	3
	7568	P505B Mr dfs and similar dp dsu graphs *1400	0 / 0	4
	7564	P506D Mr brute force dfs and similar dsu graphs *2400	0 / 0	9
	7509	P515B Drazil and His Happy Friends brute force dsu meet-in-the-middle number theory *1300	0 / 0	4
	7502	P516D Drazil and Morning Exercise dfs and similar dp dsu trees two pointers *2800	0 / 0	10
	7365	P547B Mike and Feet binary search data structures dp dsu *1900	0 / 0	6
	7334	P553C Love Triangles dfs and similar dsu graphs *2200	0 / 0	8
	7302	P566D Restructuring Company data structures dsu *1900	0 / 0	6
	7277	P571D Campus binary search data structures dsu trees *3100	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
	7146	P603B Moodular Arithmetic combinatorics dfs and similar dsu math number theory *1800	0 / 0	6
	7143	P603E Pastoral Oddities data structures divide and conquer dsu math trees *3000	0 / 0	10
	7122	P609E Minimum spanning tree for each edge data structures dfs and similar dsu graphs trees *2100	1 / 1	7
	7030	P627F Island Puzzle dfs and similar dsu graphs trees *3400	0 / 0	10
	6939	P650C Table Compression dfs and similar dp dsu graphs greedy *2200	0 / 0	8
	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
	6909	P659E New Reform data structures dfs and similar dsu graphs greedy *1600	0 / 0	5
	6908	P659F Polycarp and Hay dfs and similar dsu graphs greedy sortings *2000	0 / 0	7
	6855	P670E Correct Bracket Sequence Editor data structures dsu strings *1700	0 / 0	5
	6821	P679C Bear and Square Grid dfs and similar dsu implementation *2400	0 / 0	9
	6786	P687D Dividing Kingdom II brute force data structures dsu graphs sortings *2500	0 / 0	9
	6757	P691D Swaps in Permutation dfs and similar dsu math *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
	6670	P715C Digit Tree dfs and similar divide and conquer dsu trees *2700	0 / 0	10
	6637	P722C Destroying Array data structures dsu *1600	0 / 0	5
	6630	P723D Lakes in Berland dfs and similar dsu graphs greedy implementation *1600	0 / 0	5

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