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package leetcode.sildeWindow;

public class leetcode643 {

public double findMaxAverage(int[] nums, int k) {

int left=0;

int right=k-1;

int sum=0;

int cursum=0;

for(int i=0;i<k;i++){

cursum+=nums[i];

}

sum=cursum;

while(right<nums.length){

if(right+1<nums.length){

cursum=cursum-nums[left]+nums[right+1];

sum=Math.max(sum,cursum);

}

left++;

right++; //窗口平移

}

return (sum*1.0)/k;

}

public static void main(String[] args) {

new leetcode643().findMaxAverage(

new int[]{

1,12,-5,-6,50,3

},1

);

}

}