	ID	题目显示标签隐藏标签	AC / 尝试	难度
	938	P1386C Joker special problem bitmasks data structures divide and conquer dsu 2800	0 / 0	(无)
	866	P1400G Mercenaries bitmasks brute force combinatorics dp dsu math two pointers *2600	0 / 0	(无)
	859	P1402A Fancy Fence special problem data structures dsu implementation math sortings 1800	0 / 0	(无)
	832	P1408E Avoid Rainbow Cycles data structures dsu graphs greedy sortings trees *2400	0 / 0	(无)
	830	P1408G Clusterization Counting combinatorics dp dsu fft graphs trees *2700	0 / 0	(无)
	819	P1411C Peaceful Rooks dfs and similar dsu graphs *1700	0 / 0	(无)
	799	P1416D Graph and Queries data structures dsu graphs implementation trees *2600	0 / 0	(无)
	781	P1419F Rain of Fire binary search data structures dfs and similar dsu graphs implementation *2800	0 / 0	(无)
	756	P1423H Virus data structures divide and conquer dsu graphs *2500	0 / 0	(无)
	692	P1434E A Convex Game dsu games *3500	0 / 0	(无)
	663	P1442B Identify the Operations combinatorics data structures dsu greedy implementation *1800	0 / 0	(无)
	652	P1444C Team-Building data structures dfs and similar dsu graphs *2500	0 / 0	(无)
	569	P1463E Plan of Lectures constructive algorithms dfs and similar dsu graphs implementation sortings trees *2400	0 / 0	(无)
	561	P1466F Euclid's nightmare bitmasks dfs and similar dsu graphs greedy math sortings *2100	0 / 0	(无)
	551	P1468B Bakery data structures dsu *2900	0 / 0	(无)
	543	P1468J Road Reform dsu graphs greedy *1800	0 / 0	(无)
	494	P1476D Journey dfs and similar dp dsu implementation *1700	0 / 0	(无)
	464	P1482D Playlist data structures dsu implementation shortest paths *1900	0 / 0	(无)
	399	P1494D Dogeforces constructive algorithms data structures dfs and similar divide and conquer dsu greedy sortings trees *2300	0 / 0	(无)
	334	P1508C Complete the MST bitmasks brute force data structures dfs and similar dsu graphs greedy trees *2500	0 / 0	(无)
	299	P1513D GCD and MST constructive algorithms dsu graphs greedy number theory sortings *2000	0 / 0	(无)
	286	P1515F Phoenix and Earthquake constructive algorithms dfs and similar dsu graphs greedy trees *2600	0 / 0	(无)
	252	P1521D Nastia Plays with a Tree constructive algorithms data structures dfs and similar dp dsu greedy implementation trees *2500	0 / 0	(无)
	181	P1534C Little Alawn's Puzzle combinatorics dp dsu graphs math *1300	0 / 0	(无)
	156	P1537F Figure Fixing constructive algorithms dfs and similar dsu graphs greedy math *2200	0 / 0	(无)
	87	P1550F Jumping Around binary search data structures divide and conquer dp dsu graphs shortest paths *2700	0 / 0	(无)
	65	P1553E Permutation Shift brute force combinatorics constructive algorithms dfs and similar dsu graphs math *2100	0 / 0	(无)
	63	P1553G Common Divisor Graph brute force constructive algorithms dsu graphs hashing math number theory *2700	0 / 0	(无)
	50	P1555F Good Graph data structures dsu graphs trees *2700	0 / 0	(无)
	43	P1556G Gates to Another World bitmasks data structures dsu two pointers *3300	0 / 0	(无)
	26	P1559D1 Mocha and Diana (Easy Version) brute force constructive algorithms dsu graphs greedy trees *1400	0 / 0	(无)
	27	P1559D2 Mocha and Diana (Hard Version) brute force constructive algorithms dfs and similar dsu graphs greedy trees two pointers *2500	0 / 0	(无)
	1	P1567F One-Four Overload constructive algorithms dfs and similar dsu graphs implementation	0 / 0	(无)
	7235	P1574F Occurrences combinatorics dp dsu fft graphs	0 / 0	(无)
	7273	P1575J Jeopardy of Dropped Balls brute force dsu implementation	0 / 0	(无)
	7268	P1578B Building Forest Trails data structures dsu *2800	0 / 0	(无)
	7258	P1578L Labyrinth binary search dsu greedy *2400	0 / 0	(无)
	7288	P1592B Hemose Shopping dsu math sortings	0 / 0	(无)
	7325	P1594D The Number of Imposters constructive algorithms dfs and similar dp dsu graphs *1700	1 / 2	10
	7447	P1680F Lenient Vertex Cover dfs and similar divide and conquer dsu graphs trees *2600	0 / 0	(无)
	7441	P1681F Unique Occurrences data structures dfs and similar divide and conquer dp dsu trees *2300	0 / 0	(无)
	7423	P1685D1 Permutation Weight (Easy Version) constructive algorithms dfs and similar dsu *2800	0 / 0	(无)
	7416	P1687C Sanae and Giant Robot binary search brute force data structures dsu greedy sortings *2500	0 / 0	(无)
	7415	P1687D Cute number binary search brute force data structures dsu implementation math *2900	0 / 0	(无)
	7405	P1689E ANDfinity bitmasks brute force constructive algorithms dfs and similar dsu graphs *2500	0 / 0	(无)
	7393	P1691E Number of Groups data structures dfs and similar dsu graphs greedy sortings *2300	0 / 0	(无)
	7574	P1873H Mad City dfs and similar dsu games graphs shortest paths trees *1700	0 / 0	5
	7560	P1876D Lexichromatography combinatorics dfs and similar dsu graphs two pointers *2500	0 / 0	9
	7507	P1887D Split binary search data structures divide and conquer dsu math trees two pointers *2700	0 / 0	10
	7478	P1895E Infinite Card Game binary search brute force data structures dfs and similar dp dsu games graphs greedy sortings two pointers *2300	0 / 0	8
	7942	P1985H1 Maximize the Largest Component (Easy Version) brute force data structures dfs and similar dsu graphs implementation *1700	0 / 0	5
	7941	P1985H2 Maximize the Largest Component (Hard Version) data structures dfs and similar dp dsu implementation *2200	0 / 0	8
	7928	P1987E Wonderful Tree! brute force data structures dfs and similar dsu greedy trees *2000	0 / 0	7
	7884	P1994D Funny Game constructive algorithms dsu graphs greedy math number theory trees *1900	0 / 0	6

HGNU

根据当前过滤条件随机选择一道题

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杨旭龙、王树淳、王国斌、宋文宇、朱天伦

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肖飞、关玉蓉、魏银珍、周芬

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