Interpolation Search

def interpolationSearch(arr, lo, hi, x):

if (lo <= hi and x >= arr[lo] and x <= arr[hi]):

pos = lo + ((hi - lo) // (arr[hi] - arr[lo]) *

(x - arr[lo]))

if arr[pos] == x:

return pos

if arr[pos] < x:

return interpolationSearch(arr, pos + 1,

hi, x)

if arr[pos] > x:

return interpolationSearch(arr, lo,

pos - 1, x)

return -1

arr = [10, 12, 13, 16, 18, 19, 20,

21, 22, 23, 24, 33, 35, 42, 47]

n = len(arr)

x = 18

index = interpolationSearch(arr, 0, n - 1, x)

if index != -1:

print("Element found at index", index)

else:

print("Element not found")