题解 | #连续出现N 次问题【举一反三】#
连续出现N 次问题【举一反三】
https://www.nowcoder.com/practice/4ff31ae8241e4ee780bc55ce3f28033d
自行排序,然后在求差。 select 分数 from( select 分数, row_number()over() as py, row_number()over(order by 分数 ) as pn from 成绩表 ) as t group by t.分数,cast(py as signed)-cast(pn as signed) having count(t.分数)>=3
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