	ID	题目显示标签隐藏标签	AC / 尝试	难度
	518	P1472G Moving to the Capital dfs and similar dp graphs shortest paths *2100	0 / 0	(无)
	513	P1473E Minimum Path graphs shortest paths *2400	0 / 0	(无)
	502	P1475C Ball in Berland combinatorics graphs math *1400	0 / 0	(无)
	495	P1476C Longest Simple Cycle dp graphs greedy *1600	0 / 0	(无)
	493	P1476E Pattern Matching bitmasks data structures dfs and similar graphs hashing sortings strings *2300	0 / 0	(无)
	487	P1477D Nezzar and Hidden Permutations constructive algorithms dfs and similar graphs *2800	0 / 0	(无)
	470	P1481D AB Graph brute force constructive algorithms graphs greedy implementation *2000	0 / 0	(无)
	462	P1482F Useful Edges graphs shortest paths *2400	0 / 0	(无)
	456	P1485D Multiples and Power Differences constructive algorithms graphs math number theory *2200	0 / 0	(无)
	448	P1486E Paired Payment binary search brute force constructive algorithms dp flows graphs shortest paths *2200	0 / 0	(无)
	444	P1487C Minimum Ties brute force constructive algorithms dfs and similar graphs greedy implementation math *1500	0 / 0	(无)
	442	P1487E Cheap Dinner brute force data structures graphs greedy implementation sortings two pointers *2000	0 / 0	(无)
	416	P1491G Switch and Flip constructive algorithms graphs math *2800	0 / 0	(无)
	398	P1494E A-Z Graph constructive algorithms data structures graphs hashing *2400	0 / 0	(无)
	397	P1494F Delete The Edges brute force constructive algorithms dfs and similar graphs implementation *2900	0 / 0	(无)
	394	P1495C Garden of the Sun constructive algorithms graphs *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)
	384	P1497D Genius bitmasks dp graphs number theory *2500	0 / 0	(无)
	378	P1498D Bananas in a Microwave dfs and similar dp graphs implementation *2200	0 / 0	(无)
	377	P1498E Two Houses brute force graphs greedy interactive sortings *2200	0 / 0	(无)
	369	P1499G Graph Coloring data structures graphs interactive *3100	0 / 0	(无)
	355	P1503F Balance the Cards constructive algorithms data structures divide and conquer geometry graphs implementation *3500	0 / 0	(无)
	338	P1506F Triangular Paths constructive algorithms graphs math shortest paths sortings *2000	0 / 0	(无)
	334	P1508C Complete the MST bitmasks brute force data structures dfs and similar dsu graphs greedy trees *2500	0 / 0	(无)
	326	P1510B Button Lock flows graph matchings graphs *2600	0 / 0	(无)
	325	P1510C Cactus Not Enough dfs and similar graph matchings graphs *2900	0 / 0	(无)
	317	P1510K King's Task brute force graphs implementation *1200	0 / 0	(无)
	313	P1511D Min Cost String brute force constructive algorithms graphs greedy strings *1600	0 / 0	(无)
	299	P1513D GCD and MST constructive algorithms dsu graphs greedy number theory sortings *2000	0 / 0	(无)
	292	P1514E Baby Ehab's Hyper Apartment binary search graphs interactive sortings two pointers *2700	0 / 0	(无)
	286	P1515F Phoenix and Earthquake constructive algorithms dfs and similar dsu graphs greedy trees *2600	0 / 0	(无)
	285	P1515G Phoenix and Odometers dfs and similar graphs math number theory *2700	0 / 0	(无)
	279	P1516D Cut binary search data structures dp graphs number theory two pointers *2100	0 / 0	(无)
	274	P1517D Explorer Space dp graphs shortest paths *1800	0 / 0	(无)
	271	P1517G Starry Night Camping constructive algorithms flows graphs *3300	0 / 0	(无)
	265	P1519E Off by One constructive algorithms dfs and similar geometry graphs sortings trees *2700	0 / 0	(无)
	256	P1520G To Go Or Not To Go? brute force dfs and similar graphs greedy implementation shortest paths *2200	0 / 0	(无)
	220	P1528D It's a bird! No, it's a plane! No, it's AaParsa! constructive algorithms graphs shortest paths *2500	0 / 0	(无)
	212	P1530D Secret Santa constructive algorithms flows graphs greedy math *1600	0 / 0	(无)
	187	P1533G Biome Map *special problem constructive algorithms dfs and similar graphs	0 / 0	(无)
	185	P1533I Excursions *special problem constructive algorithms dfs and similar flows graph matchings graphs	0 / 0	(无)
	181	P1534C Little Alawn's Puzzle combinatorics dp dsu graphs math *1300	0 / 0	(无)
	179	P1534E Lost Array graphs greedy interactive shortest paths *2300	0 / 0	(无)
	178	P1534F1 Falling Sand (Easy Version) dfs and similar graphs greedy *2500	0 / 0	(无)
	177	P1534F2 Falling Sand (Hard Version) dfs and similar dp graphs greedy *3000	0 / 0	(无)
	175	P1534H Lost Nodes constructive algorithms dp graphs interactive sortings trees *3500	0 / 0	(无)
	164	P1536E Omkar and Forest combinatorics graphs math shortest paths *2300	0 / 0	(无)
	156	P1537F Figure Fixing constructive algorithms dfs and similar dsu graphs greedy math *2200	0 / 0	(无)
	142	P1540A Great Graphs constructive algorithms graphs greedy shortest paths sortings *1400	0 / 0	(无)
	141	P1540B Tree Array brute force combinatorics dp graphs math probabilities trees *2300	0 / 0	(无)
	123	P1543E The Final Pursuit bitmasks constructive algorithms divide and conquer graphs greedy math *2700	0 / 0	(无)
	120	P1545C AquaMoon and Permutations 2-sat brute force combinatorics constructive algorithms graph matchings graphs *2800	0 / 0	(无)
	1878	P1547G How Many Paths? dfs and similar dp graphs trees *2100	0 / 0	(无)
	100	P1548A Web of Lies brute force graphs greedy *1400	0 / 0	(无)
	95	P1548E Gregor and the Two Painters data structures divide and conquer graphs greedy math *3400	0 / 0	(无)
	1875	P1549B Gregor and the Pawn Game dfs and similar dp flows graph matchings graphs greedy implementation *800	0 / 0	(无)
	87	P1550F Jumping Around binary search data structures divide and conquer dp dsu graphs shortest paths *2700	0 / 0	(无)
	77	P1552B Running for Gold combinatorics graphs greedy sortings *1500	0 / 0	(无)
	75	P1552D Array Differentiation bitmasks brute force constructive algorithms dfs and similar dp graphs math *1800	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)
	44	P1556F Sports Betting bitmasks combinatorics dp graphs math probabilities *2500	0 / 0	(无)
	42	P1556H DIY Tree graphs greedy math probabilities *3300	0 / 0	(无)
	32	P1558E Down Below binary search dfs and similar graphs greedy meet-in-the-middle shortest paths *3000	0 / 0	(无)
	28	P1559C Mocha and Hiking constructive algorithms graphs *1200	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)
	7219	P1566G Four Vertices constructive algorithms graphs greedy implementation shortest paths	0 / 0	(无)
	1	P1567F One-Four Overload constructive algorithms dfs and similar dsu graphs implementation	0 / 0	(无)
	102	P1569F Palindromic Hamiltonian Path dp graphs	0 / 0	(无)
	7234	P1572A Book dp graphs implementation *1800	0 / 0	(无)
	7231	P1572D Bridge Club flows graphs greedy *2800	0 / 0	(无)
	7237	P1574D The Strongest Build binary search data structures dfs and similar graphs greedy hashing implementation shortest paths	0 / 0	(无)
	7235	P1574F Occurrences combinatorics dp dsu fft graphs	0 / 0	(无)
	7269	P1578A Anti-Tetris constructive algorithms graphs shortest paths *2800	0 / 0	(无)
	7259	P1578K Kingdom of Islands brute force graphs implementation *2800	0 / 0	(无)
	7245	P1579D Productive Meeting graphs greedy *1400	0 / 0	(无)
	7242	P1579F Array Stabilization (AND version) brute force graphs math number theory shortest paths *1700	0 / 0	(无)
	7252	P1580E Railway Construction brute force constructive algorithms data structures graphs shortest paths *3400	0 / 0	(无)
	7249	P1581B Diameter of Graph constructive algorithms graphs greedy math *1200	0 / 0	(无)
	7349	P1583E Moment of Bloom constructive algorithms dfs and similar graph matchings graphs greedy	0 / 0	(无)
	7287	P1592C Bakry and Partitioning bitmasks constructive algorithms dfs and similar dp graphs trees	0 / 0	(无)
	7325	P1594D The Number of Imposters constructive algorithms dfs and similar dp dsu graphs *1700	1 / 2	10
	7313	P1599I Desert data structures graphs	0 / 0	(无)
	7360	P1601B Frog Traveler data structures dp graphs shortest paths *1900	0 / 0	(无)
	7465	P1677C Tokitsukaze and Two Colorful Tapes constructive algorithms dfs and similar graphs greedy *1900	0 / 0	(无)
	7455	P1679D Toss a Coin to Your Graph... binary search dfs and similar dp graphs *1900	0 / 0	(无)
	7447	P1680F Lenient Vertex Cover dfs and similar divide and conquer dsu graphs trees *2600	0 / 0	(无)
	7436	P1682E Unordered Swaps constructive algorithms dfs and similar graphs greedy math sortings trees *2700	0 / 0	(无)
	7435	P1682F MCMF? data structures flows graphs greedy sortings two pointers *2700	0 / 0	(无)
	7417	P1687B Railway System constructive algorithms graphs greedy interactive sortings *1700	0 / 0	(无)
	7405	P1689E ANDfinity bitmasks brute force constructive algorithms dfs and similar dsu graphs *2500	0 / 0	(无)
	7399	P1690F Shifting String graphs math number theory strings *1700	0 / 0	(无)
	7393	P1691E Number of Groups data structures dfs and similar dsu graphs greedy sortings *2300	0 / 0	(无)
	7381	P1693C Keshi in Search of AmShZ brute force graphs greedy shortest paths *2300	0 / 0	(无)
	7470	P1695E Ambiguous Dominoes constructive algorithms dfs and similar graphs	0 / 0	(无)
	7371	P1697E Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math *2400	0 / 0	(无)

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根据当前过滤条件随机选择一道题

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肖飞、关玉蓉、魏银珍、周芬

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