Package g0401_0500.s0480_sliding_window_median

Class Solution

java.lang.Object
g0401_0500.s0480_sliding_window_median.Solution
public class Solution extends java.lang.Object
480 - Sliding Window Median.

Hard

The median is the middle value in an ordered integer list. If the size of the list is even, there is no middle value. So the median is the mean of the two middle values.

  • For examples, if arr = [2,3,4], the median is 3.
  • For examples, if arr = [1,2,3,4], the median is (2 + 3) / 2 = 2.5.

You are given an integer array nums and an integer k. There is a sliding window of size k which is moving from the very left of the array to the very right. You can only see the k numbers in the window. Each time the sliding window moves right by one position.

Return the median array for each window in the original array. Answers within 10-5 of the actual value will be accepted.

Example 1:

Input: nums = [1,3,-1,-3,5,3,6,7], k = 3

Output: [1.00000,-1.00000,-1.00000,3.00000,5.00000,6.00000]

Explanation: Window position Median ————— —– [1 3 -1 ] -3 5 3 6 7 1 1 [3 -1 -3 ] 5 3 6 7 -1 1 3 [-1 -3 5 ] 3 6 7 -1 1 3 -1 [-3 5 3 ] 6 7 3 1 3 -1 -3 [5 3 6 ] 7 5 1 3 -1 -3 5 [3 6 7 ] 6

Example 2:

Input: nums = [1,2,3,4,2,3,1,4,2], k = 3

Output: [2.00000,3.00000,3.00000,3.00000,2.00000,3.00000,2.00000]

Constraints:

  • 1 <= k <= nums.length <= 105
  • -231 <= nums[i] <= 231 - 1

  • Constructor Summary

    Constructors
    Constructor
    Description
    Solution()
     

  • Method Summary

    Modifier and Type
    Method
    Description
    double[]
    medianSlidingWindow(int[] nums, int k)
     

    Methods inherited from class java.lang.Object

    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

  • Constructor Details

    • Solution

      public Solution()

  • Method Details

    • medianSlidingWindow

      public double[] medianSlidingWindow(int[] nums, int k)