题目
给你一个整数数组 arr
,请你删除最小 5%
的数字和最大 5%
的数字后,剩余数字的平均值。
与 标准答案 误差在 10-5
的结果都被视为正确结果。
示例1:
1 | 输入:arr = [1,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,2,3] |
示例2:
1 | 输入:arr = [6,2,7,5,1,2,0,3,10,2,5,0,5,5,0,8,7,6,8,0] |
示例3:
1 | 输入:arr = [6,0,7,0,7,5,7,8,3,4,0,7,8,1,6,8,1,1,2,4,8,1,9,5,4,3,8,5,10,8,6,6,1,0,6,10,8,2,3,4] |
示例4:
1 | 输入:arr = [9,7,8,7,7,8,4,4,6,8,8,7,6,8,8,9,2,6,0,0,1,10,8,6,3,3,5,1,10,9,0,7,10,0,10,4,1,10,6,9,3,6,0,0,2,7,0,6,7,2,9,7,7,3,0,1,6,1,10,3] |
示例5:
1 | 输入:arr = [4,8,4,10,0,7,1,3,7,8,8,3,4,1,6,2,1,1,8,0,9,8,0,3,9,10,3,10,1,10,7,3,2,1,4,9,10,7,6,4,0,8,5,1,2,1,6,2,5,0,7,10,9,10,3,7,10,5,8,5,7,6,7,6,10,9,5,10,5,5,7,2,10,7,7,8,2,0,1,1] |
提示:
20 <= arr.length <= 1000
arr.length
是20
的 倍数0 <= arr[i] <= 105
解法一:
Java
1 | public double trimMean(int[] arr) { |