1232. Check If It Is a Straight Line.cpp

class Solution {
public:
    bool checkStraightLine(vector<vector<int>>& coordinates) 
    {
        if(coordinates.size()==2)
        {
            return true;
        }

        for(int i = 2;i<coordinates.size();i++)
        {
            if(((coordinates[i][1]-coordinates[0][1])*(coordinates[1][0]-coordinates[0][0])) != ((coordinates[1][1] - coordinates[0][1])*(coordinates[i][0]-coordinates[0][0])))
            {
                return false;
            }
        }
        return true;
        
    }
};