Write a python function for binary search

Solution

def binary_search(arr, low, high, x): 
    if high >= low: 
  
        mid = (high + low) // 2
        if arr[mid] == x: 
            return mid 
        elif arr[mid] > x: 
            return binary_search(arr, low, mid - 1, x) 
        else: 
            return binary_search(arr, mid + 1, high, x) 
    else: 
        return -1