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一、239. 滑动窗口最大值
题目链接#xff1a;https://leetcode.cn/problems/sliding-window-maximum/ 思路#xff1a;滑动窗口最大值#xff0c;既要维护加入的时间顺序#xff0c;又要
class Solution {public int[] maxSliding…力扣labuladong一刷day51天单调栈应用
一、239. 滑动窗口最大值
题目链接https://leetcode.cn/problems/sliding-window-maximum/ 思路滑动窗口最大值既要维护加入的时间顺序又要
class Solution {public int[] maxSlidingWindow(int[] nums, int k) {int[] res new int[nums.length - k 1];Queue queue new Queue();for (int i 0; i k; i) {queue.push(nums[i]);}int j 0;res[j] queue.getMax();for (int i k; i nums.length; i) {queue.pop(nums[i-k]);queue.push(nums[i]);res[j] queue.getMax();}return res;}class Queue {LinkedListInteger stack new LinkedList();void push(int n) {while (!stack.isEmpty() n stack.getLast()) {stack.pollLast();}stack.addLast(n);}void pop(int n) {if (n stack.getFirst()) {stack.pollFirst();}}int getMax() {return stack.getFirst();}}
}
