projecteuler---->problem=9----Special Pythagorean triplet

title:

A Pythagorean triplet is a set of three natural numbers,

, for which,

+ =

For example, 3 + 4 = 9 + 16 = 25 = 5.

There exists exactly one Pythagorean triplet for which + +
= 1000.

Find the product .

翻译：

勾股数组就是三个自然数：

+
=

比如，3 + 4 = 9 + 16 = 25 = 5。

现存在唯一的勾股数组，且 +
+
= 1000。请求出这三个数的乘积。

def resu():

	for i in range(1,1000):

		for j in range(1,1000):

			k=1000-i-j

			if i*i+j*j==k*k:

				print i*j*k

				return

resu()