思路: 双指针间距是size,之后同步走,取出动态数组temp的最大值,push到res中
终止条件 high走到末尾
/**
* @param {number[]} nums
* @param {number} k
* @return {number[]}
*/
var maxSlidingWindow = function(nums, k) {
let res = []
if(nums == null || k<1){
return res
}
let low = 0
let high = low + k - 1
while(high<nums.length){
let temp = nums.slice(low,high+1)
let maxNum = temp.reduce((prev,next)=>{
return Math.max(prev,next)
})
res.push(maxNum)
low++
high++
}
return res
};