Given an array of integers, find out whether there are two distinct indices i and j in the array such that the difference between nums[i] and nums[j] is at most t and the difference between i and j is at most k.
public class Solution { public boolean containsNearbyAlmostDuplicate(int[] nums, int k, int t) { if (k <= 0 || t < 0) { return false; } TreeSet<Integer> treeSet = new TreeSet<>(); for (int i = 0; i < nums.length; i++) { int n = nums[i]; if ((treeSet.floor(n) != null && (long)n - treeSet.floor(n) <= t) || (treeSet.ceiling(n) != null && treeSet.ceiling(n) - (long)n <= t)) { return true; } else { treeSet.add(n); } if (i >= k) { treeSet.remove(nums[i-k]); } } return false; } }
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