Python三门问题、蒙特卡罗、分赌本

import random
def getResult():
    L=[0,0,0]
    car=random.randint(0,2)
    L[car]=1
    choice=random.randint(0,2)
    if choice==car:
        return 0
    else:
        return 1



def getPI():
    x=random.uniform(-1,1)
    y=random.uniform(-1,1)
    if x*x+y*y<=1:
        return 1
    else:
        return 0


K=1000000
i=0
circle=0
while i<K:
    circle+=getPI()
    i+=1

print circle*1.0/i*4

import random
def diff(a,b,c,d,e):
    if(a==3):
        return 1
    elif(b==3 or c==3 or d==3 or e==3):
        return 0
    die=random.randint(0,4)
    if(die==0):
        return diff(a+1,b,c,d,e)
    elif die==1:
        return diff(a,b+1,c,d,e)
    elif die==2:
        return diff(a,b,c+1,d,e)
    elif die==3:
        return diff(a,b,c,d+1,e)
    else:
        return diff(a,b,c,d,e+1)




K=100000
a=0
i=0
while i<K:
    a+=diff(2,1,1,1,1)
    i+=1
print a*1.0/i