Number Guessing Game - Need Help

[ShadowWarrior17]

Just use two points and add them and divide them by two and that's your first guess, just like a human would do. 0+100//2=50. Then an input would be if the guess is too high or low. Then the guess would be either 25 or 75 etc. Mathematically speaking, this should take about 8-10 steps, which is probably the quickest; unless you're randomly guessing or brute forcing.

Here's something I came up with quickly:

h=100
l=0
answer=""
while answer != "yes":
	m=(h+l)//2
	print("Is it",m,"?")
	answer=input("lower, higher or yes?")
	if answer=="lower":
		h*=1.5
	elif answer=="higher":
		h*=0.5

Though I'm not sure on it's reliability, just it's idea.