11. Container With Most Water.cpp

class Solution {
public:
    int maxArea(vector<int>& height) {
        int ans = 0, l = 0, r = height.size() - 1;
        while (l < r) {
            // calculate the current area
            ans = max(ans, min(height[l], height[r]) * (r - l));
            // keep the max one and move the min one
            if (height[l] < height[r]) l++;
            else r--;
        }
        return ans;
    }
};