Create Wave_Array_Transformation.py

Added new algorithm

Author: iamadityasing

data_structures/arrays/Wave_Array_Transformation.py

@@ -0,0 +1,11 @@
+#Description: Sort an array in a wave-like form. In this form, arr[0] >= arr[1] <= arr[2] >= arr[3]...
+
+#Input: [10, 5, 6, 3, 2, 20, 100, 80]
+#Output: [20, 10, 6, 3, 5, 2, 80, 100]
+#Key Idea: Sort the array and swap every adjacent pair of elements.
+
+def wave_array(arr):
+    arr.sort()
+    for i in range(0, len(arr)-1, 2):
+        arr[i], arr[i+1] = arr[i+1], arr[i]
+    return arr