Given an array nums, 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 max sliding…

Given an array nums, 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 max sliding…

这题是典型的堆排序算法,只是比一般的堆算法多了删除的操作,有两件事需要做: 1 用一个hash表存储从输入数组索引到堆数组(用于实现堆的那个数组)所以的映射,以便在需要删除一个元素的时候能迅速定位到堆数组中的位置 2用一个set保存已经被删除的元素索引(这里指的是输入数组索引),这一点可选;还有一种做法就是直接将已删除元素的值设为最小INT_MIN,不过在leetcode里面并没有说清楚数据范围 class Solution { public: unordered_map<int, int>…

原题链接 题意: 给定一个数组数字,有一个大小为k的滑动窗口,它从数组的最左边移动到最右边.你只能在窗口看到k个数字.每次滑动窗口向右移动一个位置. 记录每一次窗口内的最大值,返回记录的值. 思路: 解法一: 一开始用的c++迭代器来模拟窗口,每移动一次就遍历一次找出最大值填入返回数组中. 效率非常低 Runtime: 108 ms, faster than 7.98% of C++ class Solution { public: vector<int> maxSlidingWindow(v…

Sliding Window Maximum   Given an array nums, 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 positio…

Sliding Window Maximum Given an array nums, 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.…

作者: 负雪明烛 id: fuxuemingzhu 个人博客: http://fuxuemingzhu.cn/ 目录 题目描述 题目大意 解题方法 单调递减队列 MultiSet 日期 题目地址:https://leetcode.com/problems/sliding-window-maximum/ 题目描述 Given an array nums, there is a sliding window of size k which is moving from the very left o…

题目: Given an array nums, 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. For example,Given …

题目描述: Given an array nums, 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. For example,Give…

Given an array nums, 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 knumbers in the window. Each time the sliding window moves right by one position. For example,Given nums …