Upper Strength (7 kyu)

[DNPotapov]

def alex_mistakes(number_of_katas, time_limit):
    count = 0
    delay = 0
    time_doing = number_of_katas*6
    if time_doing == time_limit:
        return count
    while(time_doing + delay*2 <= time_limit):
        if count == 0:
            delay = 5
        else:
            delay = delay * 2
        time_doing += delay
        count += 1
    return count

[DNPotapov]

Alex is transitioning from website design to coding and wants to sharpen his skills with CodeWars. He can do ten kata in an hour, but when he makes a mistake, he must do pushups. These pushups really tire poor Alex out, so every time he does them they take twice as long. His first set of redemption pushups takes 5 minutes. Create a function, alexMistakes, that takes two arguments: the number of kata he needs to complete, and the time in minutes he has to complete them. Your function should return how many mistakes Alex can afford to make.

[DNPotapov]

https://www.codewars.com/kata/571640812ad763313600132b