public class Solution {
    public int MaxArea(int[] height) {

        int head=0;
        int tail=height.Length-1;
        var max = 0;

        while(head<tail){
            max = Math.Max((tail-head) * Math.Min(height[head],height[tail]),max);

            if(height[head] < height[tail])
                head++;
            else
                tail--;
        }
        return max;
    }
}