package question;

/**
 * @author Roderland
 * @since 1.0
 */
public class Question643 {
 public double findMaxAverage(int[] nums, int k) {
 int sum = 0;
 for (int i = 0; i < k; i++) {
 sum+=nums[i];
 }
 int res = sum;
 for (int i = 0; i < nums.length - k; i++) {
 sum=sum-nums[i]+nums[i+k];
 res=Math.max(res, sum);
 }
 return res*1d/k;
 }
}