Mean of Array After Removing Some Elements
给一个数组, 求删除最大的5%和最小的5%后的mean.
这个居然是狗家题, 我…无语了
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class Solution { public double trimMean(int[] arr) { Arrays.sort(arr); int n = arr.length; double sum = 0d; int count = 0; for(int i = (int)(n * 0.05); i < (int)(n * (1 - 0.05)); i++){ sum += arr[i]; count++; } return sum / count; } } |