[原创]24点
duweifu
posted @ 2011年3月10日 19:43
in Scrawl
with tags
python 24点
, 981 阅读
下了python3.1，写了一个24点的程序练手。
#! /usr/bin/env python
#coding=utf-8
import operator
import itertools
import functools
def compute(a, b, c, d, total):
for guess_num in itertools.permutations([a,b,c,d], 4):
for guess_op in itertools.product(['+','-','*','/'],repeat=3):
tmp_list = [(num, op) for (num, op) in itertools.zip_longest(guess_num, guess_op, fillvalue='')]
expression = functools.reduce(operator.add, map(lambda x : x[0] + x[1],tmp_list))
res = eval(expression)
if abs(float(res) - float(total)) < 0.001:
print(expression + ' = ' + total)
return
print("None.")
if __name__ == '__main__':
compute('2','11','9','8','24')
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