	ID	题目显示标签隐藏标签	AC / 尝试	难度
	130	P1542E1 Abnormal Permutation Pairs (easy version) combinatorics dp fft math *2400	0 / 0	(无)
	129	P1542E2 Abnormal Permutation Pairs (hard version) combinatorics dp fft math *2700	0 / 0	(无)
	127	P1543B Customising the Track combinatorics greedy math *900	0 / 0	(无)
	121	P1545B AquaMoon and Chess combinatorics math *1900	0 / 0	(无)
	120	P1545C AquaMoon and Permutations 2-sat brute force combinatorics constructive algorithms graph matchings graphs *2800	0 / 0	(无)
	98	P1548C The Three Little Pigs combinatorics dp fft math *2500	0 / 0	(无)
	89	P1550D Excellent Arrays binary search combinatorics constructive algorithms implementation math sortings two pointers *2300	0 / 0	(无)
	79	P1551F Equidistant Vertices brute force combinatorics dfs and similar dp trees *2200	0 / 0	(无)
	77	P1552B Running for Gold combinatorics graphs greedy sortings *1500	0 / 0	(无)
	76	P1552C Maximize the Intersections combinatorics constructive algorithms geometry greedy sortings *1800	0 / 0	(无)
	65	P1553E Permutation Shift brute force combinatorics constructive algorithms dfs and similar dsu graphs math *2100	0 / 0	(无)
	61	P1553I Stairs combinatorics divide and conquer dp fft math *3400	0 / 0	(无)
	44	P1556F Sports Betting bitmasks combinatorics dp graphs math probabilities *2500	0 / 0	(无)
	39	P1557C Moamen and XOR bitmasks combinatorics dp math matrices *1700	0 / 0	(无)
	33	P1558D Top-Notch Insertions combinatorics data structures *2600	0 / 0	(无)
	24	P1559E Mocha and Stars combinatorics dp fft math number theory *2200	0 / 0	(无)
	4	P1567C Carrying Conundrum bitmasks combinatorics dp	0 / 0	(无)
	105	P1569C Jury Meeting combinatorics math	0 / 0	(无)
	7239	P1574B Combinatorics Homework combinatorics greedy math	0 / 0	(无)
	7236	P1574E Coloring combinatorics constructive algorithms implementation	0 / 0	(无)
	7235	P1574F Occurrences combinatorics dp dsu fft graphs	0 / 0	(无)
	7255	P1580B Mathematics Curriculum combinatorics dp trees *2600	0 / 0	(无)
	7250	P1581A CQXYM Count Permutations combinatorics math number theory *800	0 / 0	(无)
	7368	P1582B Luntik and Subsequences combinatorics math *900	0 / 0	(无)
	7345	P1586I Omkar and Mosaic combinatorics constructive algorithms math	0 / 0	(无)
	7324	P1594E1 Rubik's Cube Coloring (easy version) combinatorics math *1300	0 / 0	(无)
	7332	P1598D Training Session combinatorics math	0 / 0	(无)
	7331	P1598E Staircases combinatorics dp	0 / 0	(无)
	7319	P1599C Bubble Strike combinatorics math probabilities ternary search	0 / 0	(无)
	7454	P1679E Typical Party in Dorm bitmasks combinatorics dp strings *2400	0 / 0	(无)
	7414	P1687E Become Big For Me combinatorics constructive algorithms greedy math number theory *3500	0 / 0	(无)
	7392	P1691F K-Set Tree combinatorics dfs and similar dp math trees *2500	0 / 0	(无)
	7371	P1697E Coloring brute force combinatorics constructive algorithms dp geometry graphs greedy implementation math *2400	0 / 0	(无)
	7562	P1876B Effects of Anti Pimples combinatorics number theory sortings *1500	0 / 0	5
	7560	P1876D Lexichromatography combinatorics dfs and similar dsu graphs two pointers *2500	0 / 0	9
	7545	P1879C Make it Alternating combinatorics dp greedy *1300	0 / 0	4
	7544	P1879D Sum of XOR Functions bitmasks combinatorics divide and conquer dp math *1700	0 / 0	5
	7512	P1886D Monocarp and the Set combinatorics data structures math *2100	0 / 0	7
	7485	P1893E Cacti Symphony combinatorics dfs and similar dp graphs *3500	0 / 0	10
	7477	P1895F Fancy Arrays combinatorics dp math matrices *2600	0 / 0	10
	7955	P1984C2 Magnitude (Hard Version) combinatorics dp greedy math *1700	0 / 0	5
	7950	P1984H Tower Capturing combinatorics dp geometry *3300	0 / 0	10
	7945	P1985E Secret Box brute force combinatorics math *1200	0 / 0	4
	7943	P1985G D-Function combinatorics math number theory *1600	0 / 0	5
	7934	P1986G1 Permutation Problem (Simple Version) binary search brute force combinatorics data structures math number theory *2200	0 / 0	8
	7917	P1988F Heartbeat combinatorics dp fft math *3000	0 / 0	10
	7912	P1989E Distance to Different combinatorics dp math *2300	0 / 0	8
	7888	P1992G Ultra-Meow combinatorics dp math *2000	0 / 0	7
	7880	P1994H Fortnite combinatorics constructive algorithms games greedy hashing interactive math number theory strings *3500	0 / 0	10
	7869	P1996D Fun binary search brute force combinatorics math number theory	0 / 0	(无)
	7868	P1996E Decode combinatorics data structures implementation math	0 / 0	(无)
	7860	P1997F Chips on a Line brute force combinatorics dp greedy math	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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