arrayReverse.py

# Simple swapping of array elements using two pointer method

def reverse(arr):
 start = 0
 end = len(arr) - 1
 temp = 0

 while( start < end ):
 temp=arr[start]
 arr[start]=arr[end]
 arr[end]=temp
 start += 1
 end -= 1

# User input starts
def userInput():
 arr = []
 n = int(input("Enter number of elements:"))
 print("Enter the elements")
 for i in range(0,n):
 element = int(input())
 arr.append(element)

 print("Array before reversing:", arr)
 reverse(arr)
 print("Array after reversing:", arr)

userInput()