这个比较简单，慢慢进入状态。

A Pythagorean triplet is a set of three natural numbers, a b c, for which,

For example, 3² + 4² = 9 + 16 = 25 = 5².

There exists exactly one Pythagorean triplet for which a + b + c = 1000.
Find the product abc.

for a in xrange(1,1000):
    for b in xrange(1,1000):
        c = 1000 - (a + b)
        if (c * c) == (a * a + b * b):
            print a * b * c
            break

31875000
31875000
请按任意键继续. . .