Find Pythagorean triplet for which a + b + c = 1000

Question

A Pythagorean triplet is a set of three natural numbers, a < b < c, for which, a² + b² = c²

For example, 3² + 4

Answer 1

There is a quite dirty but quick solution to this problem. Given the two equations

a*a + b*b = c*c

a+b+c = 1000.

You can deduce the following relation

a = (1000*1000-2000*b)/(2000-2b)

or after two simple math transformations, you get:

a = 1000*(500-b) / (1000 - b)

since a must be an natural number. Hence you can:

for b in range(1, 500):
    if 1000*(500-b) % (1000-b) == 0:
        print b, 1000*(500-b) / (1000-b) 

Got result 200 and 375.

Good luck