1232. Check If It Is a Straight Line

Author: amitbansal7

check-if-it-is-a-straight-line.cpp

@@ -0,0 +1,21 @@
+// Runtime: 12 ms
+// Memory Usage: 10.3 MB
+class Solution {
+public:
+
+  float slope(vector<vector<int> > &coordinates, int i, int j) {
+    return (float)(coordinates[j][1] - coordinates[i][1]) / (float)(coordinates[j][0] - coordinates[i][0]);
+  }
+
+  bool checkStraightLine(vector<vector<int>>& coordinates) {
+    float slp = slope(coordinates, 0, 1);
+
+    for (int i = 1; i < coordinates.size() - 1; i++) {
+      if (slp != slope(coordinates, i, i + 1)) {
+        return false;
+      }
+    }
+    return true;
+
+  }
+};