	ID	题目显示标签隐藏标签	AC / 尝试	难度
	615	P1452G Game On Tree data structures dfs and similar greedy trees *2700	0 / 0	(无)
	610	P1453E Dog Snacks binary search dfs and similar dp greedy trees *2300	0 / 0	(无)
	604	P1454E Number of Simple Paths combinatorics dfs and similar graphs trees *2000	0 / 0	(无)
	589	P1458F Range Diameter Sum data structures trees *3500	0 / 0	(无)
	569	P1463E Plan of Lectures constructive algorithms dfs and similar dsu graphs implementation sortings trees *2400	0 / 0	(无)
	567	P1464F My Beautiful Madness data structures trees *3500	0 / 0	(无)
	563	P1466D 13th Labour of Heracles data structures greedy sortings trees *1500	0 / 0	(无)
	553	P1467E Distinctive Roots in a Tree data structures dfs and similar dp trees *2500	0 / 0	(无)
	477	P1479D Odd Mineral Resource binary search bitmasks brute force data structures probabilities trees *2900	0 / 0	(无)
	468	P1481F AB Tree dp greedy trees *3100	0 / 0	(无)
	460	P1482H Exam data structures string suffix structures trees *3400	0 / 0	(无)
	455	P1485E Move and Swap dfs and similar dp greedy trees *2500	0 / 0	(无)
	447	P1486F Pairs of Paths combinatorics data structures dfs and similar dp trees *2600	0 / 0	(无)
	418	P1491E Fib-tree brute force dfs and similar divide and conquer number theory trees *2400	0 / 0	(无)
	415	P1491H Yuezheng Ling and Dynamic Tree data structures trees *3400	0 / 0	(无)
	399	P1494D Dogeforces constructive algorithms data structures dfs and similar divide and conquer dsu greedy sortings trees *2300	0 / 0	(无)
	393	P1495D BFS Trees combinatorics dfs and similar graphs math shortest paths trees *2600	0 / 0	(无)
	391	P1495F Squares constructive algorithms data structures dp graphs trees *3300	0 / 0	(无)
	376	P1498F Christmas Game bitmasks data structures dfs and similar dp games math trees *2500	0 / 0	(无)
	370	P1499F Diameter Cuts combinatorics dfs and similar dp trees *2400	0 / 0	(无)
	334	P1508C Complete the MST bitmasks brute force data structures dfs and similar dsu graphs greedy trees *2500	0 / 0	(无)
	332	P1508E Tree Calendar brute force constructive algorithms data structures dfs and similar sortings trees *3100	0 / 0	(无)
	314	P1511C Yet Another Card Deck brute force data structures implementation trees *1100	0 / 0	(无)
	286	P1515F Phoenix and Earthquake constructive algorithms dfs and similar dsu graphs greedy trees *2600	0 / 0	(无)
	272	P1517F Reunion combinatorics dp trees *3200	0 / 0	(无)
	265	P1519E Off by One constructive algorithms dfs and similar geometry graphs sortings trees *2700	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)
	248	P1523C Compression and Expansion brute force data structures greedy implementation trees *1600	0 / 0	(无)
	225	P1527D MEX Tree combinatorics dfs and similar implementation math trees *2400	0 / 0	(无)
	223	P1528A Parsa's Humongous Tree dfs and similar divide and conquer dp greedy trees *1600	0 / 0	(无)
	221	P1528C Trees of Tranquillity data structures dfs and similar greedy trees *2300	0 / 0	(无)
	219	P1528E Mashtali and Hagh Trees combinatorics dp trees *2900	0 / 0	(无)
	180	P1534D Lost Tree constructive algorithms interactive trees *1800	0 / 0	(无)
	175	P1534H Lost Nodes constructive algorithms dp graphs interactive sortings trees *3500	0 / 0	(无)
	171	P1535D Playoff Tournament data structures dfs and similar dp implementation trees *1800	0 / 0	(无)
	170	P1535E Gold Transfer binary search data structures dp greedy interactive trees *2200	0 / 0	(无)
	141	P1540B Tree Array brute force combinatorics dp graphs math probabilities trees *2300	0 / 0	(无)
	1878	P1547G How Many Paths? dfs and similar dp graphs trees *2100	0 / 0	(无)
	79	P1551F Equidistant Vertices brute force combinatorics dfs and similar dp trees *2200	0 / 0	(无)
	62	P1553H XOR and Distance bitmasks divide and conquer trees *2900	0 / 0	(无)
	51	P1555E Boring Segments data structures sortings trees two pointers *2100	0 / 0	(无)
	50	P1555F Good Graph data structures dsu graphs trees *2700	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)
	7221	P1566E Buds Re-hanging dfs and similar dp graphs greedy trees	0 / 0	(无)
	7274	P1575I Illusions of the Desert data structures trees	0 / 0	(无)
	7255	P1580B Mathematics Curriculum combinatorics dp trees *2600	0 / 0	(无)
	7253	P1580D Subsequence brute force divide and conquer dp trees *2900	0 / 0	(无)
	7352	P1583B Omkar and Heavenly Tree constructive algorithms trees	0 / 0	(无)
	7346	P1583H Omkar and Tours data structures divide and conquer sortings trees	0 / 0	(无)
	7287	P1592C Bakry and Partitioning bitmasks constructive algorithms dfs and similar dp graphs trees	0 / 0	(无)
	7286	P1592D Hemose in ICPC ? binary search dfs and similar divide and conquer interactive math number theory trees	0 / 0	(无)
	7338	P1593E Gardener and Tree dfs and similar greedy implementation trees	0 / 0	(无)
	7323	P1594E2 Rubik's Cube Coloring (hard version) brute force dp implementation math trees *2300	0 / 0	(无)
	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)
	7437	P1682D Circular Spanning Tree constructive algorithms implementation trees *2000	0 / 0	(无)
	7436	P1682E Unordered Swaps constructive algorithms dfs and similar graphs greedy math sortings trees *2700	0 / 0	(无)
	7407	P1689C Infected Tree dfs and similar dp trees *1600	0 / 0	(无)
	7392	P1691F K-Set Tree combinatorics dfs and similar dp math trees *2500	0 / 0	(无)
	7382	P1693B Fake Plastic Trees dfs and similar dp greedy trees *1700	0 / 0	(无)
	7472	P1695D1 Tree Queries (Easy Version) constructive algorithms dfs and similar dp greedy trees	0 / 0	(无)
	7471	P1695D2 Tree Queries (Hard Version) constructive algorithms dfs and similar dp greedy trees	0 / 0	(无)
	7574	P1873H Mad City dfs and similar dsu games graphs shortest paths trees *1700	0 / 0	5
	7559	P1876E Ball-Stackable constructive algorithms data structures dp trees *3300	0 / 0	10
	7557	P1876G Clubstep binary search brute force data structures greedy trees *3500	0 / 0	10
	7548	P1878G wxhtzdy ORO Tree binary search bitmasks brute force data structures dfs and similar implementation trees *2300	0 / 0	8
	7543	P1879E Interactive Game with Coloring brute force constructive algorithms dfs and similar graphs implementation interactive trees *2400	0 / 0	9
	7536	P1881F Minimum Maximum Distance dfs and similar dp graphs shortest paths trees *1700	0 / 0	5
	7531	P1882D Tree XOR bitmasks dfs and similar dp greedy trees *1900	0 / 0	6
	7507	P1887D Split binary search data structures divide and conquer dsu math trees two pointers *2700	0 / 0	10
	7500	P1889D Game of Stacks brute force dfs and similar graphs implementation trees *3000	0 / 0	10
	7499	P1889E Doremy's Swapping Trees dfs and similar graphs trees *3500	0 / 0	10
	7498	P1889F Doremy's Average Tree data structures dp greedy trees *3500	0 / 0	10
	7490	P1891F A Growing Tree data structures dfs and similar trees *2000	0 / 0	7
	7479	P1895D XOR Construction bitmasks constructive algorithms data structures math string suffix structures trees *1900	0 / 0	6
	7959	P1983G Your Loss bitmasks brute force dp trees *3000	0 / 0	10
	7953	P1984E Shuffle dp greedy trees *2400	0 / 0	9
	7935	P1986F Non-academic Problem dfs and similar graphs trees *1900	0 / 0	6
	7928	P1987E Wonderful Tree! brute force data structures dfs and similar dsu greedy trees *2000	0 / 0	7
	7925	P1987G1 Spinning Round (Easy Version) divide and conquer dp trees *2900	0 / 0	10
	7924	P1987G2 Spinning Round (Hard Version) divide and conquer dp trees *3500	0 / 0	10
	7919	P1988D The Omnipotent Monster Killer brute force dfs and similar dp trees *2000	0 / 0	7
	7906	P1990E1 Catch the Mole(Easy Version) binary search data structures dfs and similar interactive trees *2500	0 / 0	9
	7905	P1990E2 Catch the Mole(Hard Version) binary search data structures dfs and similar divide and conquer interactive trees *2600	0 / 0	10
	7884	P1994D Funny Game constructive algorithms dsu graphs greedy math number theory trees *1900	0 / 0	6
	7883	P1994E Wooden Game bitmasks greedy math trees *2000	0 / 0	7
	7882	P1994F Stardew Valley constructive algorithms dfs and similar graphs trees *2500	0 / 0	9
	7862	P1997D Maximize the Root binary search dfs and similar dp greedy trees	0 / 0	(无)

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