Create 1232. Check If It Is a Straight Line.cpp

Author: Utkarssh11

1232. Check If It Is a Straight Line.cpp

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+LeetCode
+1232. Check If It Is a Straight Line
+
+class Solution {
+ public:
+  bool checkStraightLine(vector<vector<int>>& coordinates) {
+    int x0 = coordinates[0][0];
+    int y0 = coordinates[0][1];
+    int x1 = coordinates[1][0];
+    int y1 = coordinates[1][1];
+    int dx = x1 - x0;
+    int dy = y1 - y0;
+
+    for (int i = 2; i < coordinates.size(); ++i) {
+      int x = coordinates[i][0];
+      int y = coordinates[i][1];
+      if ((x - x0) * dy != (y - y0) * dx)
+        return false;
+    }
+
+    return true;
+  }
+};
+