Create left_rotation_array.py

Python/Miscellaneous/left_rotation_array.py

@@ -0,0 +1,23 @@
+class arrayData():
+    # Python3 program to 
+    # Function to left rotate arr[] of size n by d*/ 
+    def leftRotate(self, arr, d, n): 
+        for i in range(d): 
+            self.leftRotatebyOne(arr, n) 
+
+    # Function to left Rotate arr[] of size n by 1*/  
+    def leftRotatebyOne(self, arr, n): 
+        temp = arr[0] 
+        for i in range(n-1): 
+            arr[i] = arr[i + 1] 
+        arr[n-1] = temp 
+
+
+    # utility function to print an array */ 
+    def printArray(self, arr, size): 
+        for i in range(size): 
+            print ("% d"% arr[i], end =" ")
+arrayObj = arrayData()
+arr = [1, 2, 3, 4, 5, 6, 7] 
+arrayObj.leftRotate(arr, 3, 7) 
+arrayObj.printArray(arr, 7)