Any better way to typecast variables in my function given below ?

Question

https://code.sololearn.com/c3sxM7IrO2SL/?ref=app

def diff(l,n):
a=int(l[0])
b=int(l[0])
c=0
for i in range(n):
if a>int(l[i]):
a=int(l[i])
if b<int(l[i]):
b=int(l[i])
c=b-a
return c

Answer 1

use list comprehension in the function to converts the elements (currently strings) to a list of integers....then use the max and min functions and subtract them and return it.
(no need to pass the 'n'.)

Answer 2

rodwynnejones
Thank you for the help, it does work.
Yes, built in functions are there, but I was just trying to explore through codes. It would be helpful in complex programs though