Leetcode 315. Count of Smaller Numbers After Self
Youaregivenanintegerarraynumsandyouhavetoreturnanewcountsarray.Thecountsarrayhasthepropertywherecounts[i]isthenumberofsmallerelementstotherightofnums[i].Example:Givennums=[5,2,6,1]Totherightof5therear