Valid Boomerang

<-E 1037> Valid Boomerang

class Solution {
public:
    bool isBoomerang(vector<vector<int>>& points) {
        return (points[1][1] - points[0][1]) * (points[2][0] - points[1][0]) != 
            (points[2][1] - points[1][1]) * (points[1][0] - points[0][0]);
    }
};