Container with most water area

MaxArea.cpp

class Solution {
public:
    int maxArea(vector<int>& height) {
        int N = height.size(); 
        int maxArea=0;
        int left=0, right=N-1;
        while (left<right) {
            maxArea = max(maxArea, (min(height[left], height[right]) * (right-left)) );
            if (height[left] < height[right]) left++;
            else right--;
        }         
        return maxArea;
    }
    
    int max(int a, int b){
        return (a>=b) ? a : b;
    }
    
    int min(int a, int b){
        return a<=b ? a : b;
    }
};