combinatorics - Problem Set - 追梦算法网

	ID	Problem Show tags Hide tags	AC / Tried	Difficulty
	2284	P1205E Expected Value Again combinatorics strings *3100	0 / 0	(None)
	2277	P1207D Number Of Permutations combinatorics *1800	0 / 0	(None)
	2221	P1215B The Number of Products combinatorics dp implementation *1400	0 / 0	(None)
	2179	P1221G Graph And Numbers bitmasks brute force combinatorics dp meet-in-the-middle *2900	0 / 0	(None)
	2156	P1227F2 Wrong Answer on test 233 (Hard Version) combinatorics math *2400	0 / 0	(None)
	2150	P1228E Another Filling the Grid combinatorics dp math *2300	0 / 0	(None)
	2136	P1236B Alice and the List of Presents combinatorics math *1500	0 / 0	(None)
	2125	P1237F Balanced Domino Placements combinatorics dp *2600	0 / 0	(None)
	2119	P1238D AB-string binary search combinatorics dp strings *1900	0 / 0	(None)
	2115	P1239A Ivan the Fool and the Probability Theory combinatorics dp math *1700	0 / 0	(None)
	2088	P1245F Daniel and Spring Cleaning bitmasks brute force combinatorics dp *2300	0 / 0	(None)
	2054	P1251F Red-White Fence combinatorics fft *2500	0 / 0	(None)
	2030	P1254E Send Tree to Charlie combinatorics dfs and similar dsu trees *3300	0 / 0	(None)
	1997	P1264D1 Beautiful Bracket Sequence (easy version) combinatorics dp probabilities *2600	0 / 0	(None)
	1996	P1264D2 Beautiful Bracket Sequence (hard version) combinatorics probabilities *2900	0 / 0	(None)
	1972	P1267K Key Storage combinatorics math *2100	0 / 0	(None)
	1950	P1271E Common Number binary search combinatorics dp math *2100	0 / 0	(None)
	1946	P1272C Yet Another Broken Keyboard combinatorics dp implementation *1200	0 / 0	(None)
	1933	P1276B Two Fairs combinatorics dfs and similar dsu graphs *1900	0 / 0	(None)
	1932	P1276C Beautiful Rectangle brute force combinatorics constructive algorithms data structures greedy math *2300	0 / 0	(None)

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