probability_cal.py

gistfile1.txt

from random import randint

def cal():
    all_time = []
    cash,count = 1,0
    target = 100000
    for i in xrange(0,10):
        while True:
            cash = cash* 2  if randint(0,1)==0 else 1
            count += 1
            print count,cash
            if cash >= target:
                all_time.append(count)
                break
    print max(all_time),min(all_time),sum(all_time)/len(all_time)

if __name__=='__main__':
    cal()