# -*- coding:utf-8 -*-
__author__ = 'Abel Xu'
def func(n):
"""
T(n) = 4T(n/2)+n
= 2n^2-n
:param n:
:return:
"""
if n==0:
return 0
return 4 * func(n/2) + n
# 另一套写法
f = lambda x: x and 4*f(x/2)+x or 0
if __name__ == '__main__':
for i in xrange(0, 6, 2):
print(func(i))
print f(4)以上就是递归小程序实例代码的详细内容,更多请关注php中文网其它相关文章!
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