combinatorics - 题库

ID	题目显示标签隐藏标签	AC / 尝试	难度
255	P1557C Moamen and XOR bitmasks combinatorics dp math matrices *1700	7 / 30	8
17	P1747E List Generation combinatorics dp math *2900	0 / 0	(无)
244	P1837E Playoff Fixing combinatorics trees	2 / 17	9
237	P1876B Effects of Anti Pimples combinatorics number theory sortings	7 / 17	8
239	P1876D Lexichromatography combinatorics dfs and similar dsu graphs two pointers	1 / 2	10
120	P1895F Fancy Arrays combinatorics math matrices	0 / 0	(无)
224	P1948F Rare Coins combinatorics math probabilities	0 / 0	(无)

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