Python-сообщество

 answer=''
number=int(500)
print(number)
while answer!='=':
    answer=input()
    if answer=='=':
        print (int(number))
    elif answer=='>':
        number*=1.5
        print (int(number))
    elif answer=='<':
        number*=0.5
        if number>1000:
            number=1000
        print (int(number))

 import random
n = 0
number_1 = 1
number_2 = 1000
while n < 10:
    n += 1
    number = random.randint(number_1, number_2)
    print(number)
    answer = input('Enter result')
    if answer == '>':
        number_1 = number + 1
    elif answer == '<':
        number_2 = number - 1
    else:
        print('WIN!')
        break
else:
    print('Game Over')

 summ = 0
delta = 2**9
while True:
    print('sum:',summ)
    inp = input('?: ')
    if inp == '=':
        print('result:',summ)
        break
    elif inp == '<':
            summ += delta
            delta >>= 1
    elif inp == '>':
            summ -= delta
            delta >>= 1
    else:
        print('input error')

 S = 250
Median = 500
while True:
	print(Median)
	if input() == ">":
		Median += S
	else:
		Median -= S
	if S > 1: S //= 2

 rodegast@rodegast:~$ python3 ./game.py
500
>
750
<
625
>
687
<
656
>
671
<
664
>
667
<
666

 >>> def f(delta,val):
    summ = 0
    while delta:
        if summ < val: summ += delta
        elif summ > val: summ -= delta
        else: break
        delta >>= 1
    return summ
>>> d = 1000
>>> count = 0
>>> for i in range(0,1000):
    if i != f(d, i): count += 1
>>> count
488
>>>