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#!/usr/bin/env python import random import time CNT=151 delay=0.2 empty='.' fill='#' """get console's size""" import os rows,cols=os.popen('stty size','r').read().split() CNT=int(cols) del rows,cols """get console's size end""" def cnt(index): global before num=0 for i in range(index-1,index+2): if before[i%CNT]==fill: num+=1 return num #lst=[random.choice(['#','.']) for i in range(CNT)] lst=[empty for i in range(CNT)] for i in random.sample(range(CNT),5): lst[i]=fill before=[] while True: print ''.join(lst) before=lst[:] for i in range(CNT): if cnt(i) in [1,2]: lst[i]=fill else: lst[i]=empty time.sleep(delay) |
Tag: Programing
[Python] permutation
[code lang=”python”]
#!/usr/bin/python
def perm(a,b=[]):
if not len(a):
print ”.join(b)
for i in range(len(a)):
b.append(a.pop(i))
perm(a,b)
a.insert(i,b.pop())
perm(list("abcd"))
[/code]
abcd
abdc
acbd
acdb
adbc
adcb
bacd
badc
bcad
bcda
bdac
bdca
cabd
cadb
cbad
cbda
cdab
cdba
dabc
dacb
dbac
dbca
dcab
dcba
abdc
acbd
acdb
adbc
adcb
bacd
badc
bcad
bcda
bdac
bdca
cabd
cadb
cbad
cbda
cdab
cdba
dabc
dacb
dbac
dbca
dcab
dcba